Entries |
Document | Title | Date |
20080209922 | Restriction in Vapor Injection Line - A refrigerant system can be operated in either vapor injection mode or unloaded mode. A restriction to the vapor injection flow is incorporated into the refrigerant system. The restriction is placed on the vapor injection line upstream of a point where the injection line meets the unloader line. In this case, the flow is restricted for the vapor injection mode of operation to a desired level. However, when the refrigerant system operates in the unloaded mode, there is no restriction to the by-pass flow, which is beneficial to the system performance in this mode of operation. In one of the embodiments, the restriction area can be adjusted to achieve the best performance during the vapor injection mode of operation in relation to the operating conditions. | 09-04-2008 |
20080223048 | Heating System | 09-18-2008 |
20090260370 | SECONDARY COOLING PATH IN REFRIGERATOR - A refrigerator includes a secondary cooling path for circulating liquid coolant through the refrigerator wherein the liquid coolant is cooled by the freezer compartment and wherein the liquid coolant cools the ice maker and the ice bin as the liquid coolant circulates through the secondary cooling path. A pump is positioned along the secondary cooling path for pumping the liquid coolant through the secondary cooling path. A tube having a first end proximate the pump and an opposite end exposed to atmosphere may control suction pressure associated with the pump. The refrigerator reduces frost build up through configuration of the secondary cooling path or performing ice harvesting operations which melt frost. The secondary cooling path may be used to provide for circulating hot liquid. The secondary cooling path may be used to provide for circulating liquid coolant during a power outage. | 10-22-2009 |
20090260371 | SECONDARY COOLING APPARATUS AND METHOD FOR A REFRIGERATOR - The present invention provides a secondary cooling apparatus and method of providing cooling to one or more features in a refrigerator. In one exemplary aspect of the present invention, the refrigerator includes a cabinet having a door, a first cooling loop in the cabinet, and a second cooling loop cooled by the first cooling loop. The secondary cooling loop is adapted to cool the one or more features in the cabinet or on the door of the refrigerator. In another exemplary aspect of the present invention, a method for providing cooling in a refrigerator to one or more features in a compartment or on a door of the refrigerator includes providing a first cooling loop within a refrigerator, cooling a secondary cooling loop directly or indirectly with the first cooling loop, and transferring cooling from the secondary cooling loop to the one or more features in the compartment or on the door of the refrigerator. | 10-22-2009 |
20090288430 | HEAT PUMP WITH THERMAL ENERGY TRANSFER UNIT AND METHOD - A thermal energy transfer unit is used in conjunction with a conventional Freon based heat pump system. One or several thermal energy transfer units are operatively interconnected to one or several Freon based heat pump systems and share a common energy storage tank. Each thermal energy transfer unit converts energy from a compressor and condensing coil of the conventional heat pump system and stores it in the common energy storage tank when electricity is in low demand. Each thermal energy transfer unit retrieves stored energy from the common storage tank and provides air conditioning without the use of the compressor when electricity is in high demand. Each thermal energy transfer unit can be disabled to allow the heat pump units to perform as if they and the energy storage tank were not connected. One or all of the units can be disabled without affecting the performance or purpose of the others. | 11-26-2009 |
20090301109 | METHOD AND APPARATUS FOR CONTROL OF CARBON DIOXIDE GAS COOLER PRESSURE BY USE OF A TWO-STAGE COMPRESSOR - A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a first compressor, an intercooler, a second compressor with a variable capacity, a first heat exchanger, an expansion device and a second heat exchanger. The first compressor compresses the refrigerant from a low pressure to an intermediate pressure. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. Cooling means cools the refrigerant within one of the compressors. | 12-10-2009 |
20090320503 | COGENERATION SYSTEM - A cogeneration system includes a coolant circuit through which a coolant is circulated for conducting a heat exchange with an exhaust heat generated by a power generation unit, a buffer tank provided at the coolant circuit and storing the coolant, a heating circuit including a heating power source and a heating terminal, the heating power source generating a heating water that is circulated to be supplied to the heating terminal, a heating water bypass circuit bypassing a flow passage of the heating circuit at a portion between an exit of the heating terminal and the heating power source, and a heat exchanging device performing a heat exchange between the heating water flowing through the heating water bypass circuit and the coolant. | 12-31-2009 |
20100024443 | HEAT RECOVERY SYSTEM - A heat recovery system for a turbomachine system includes a heat removal system and a refrigeration system. The heat removal system is fluidly connected to at least one component of the turbomachine system. The heat removal system passes a cooling fluid through the at least one component to absorb heat. The refrigeration system is operatively connected to the heat removal system. The refrigeration system extracts the heat from the cooling fluid passing through the at least one component of the turbomachine system to produce a cooling effect. | 02-04-2010 |
20100024444 | HEAT RECOVERY SYSTEM FOR A TURBOMACHINE AND METHOD OF OPERATING A HEAT RECOVERY STEAM SYSTEM FOR A TURBOMACHINE - A heat recovery system includes a source of waste heat, and a refrigeration system operatively connected to the source of waste heat. The refrigeration system is capable of extracting heat rejected from the source of waste heat to form a cooling medium. | 02-04-2010 |
20100043461 | Energy storage and temperature change type air conditioning method with underground reservoir and water source heat pump, and the dedicated device thereof - The present invention discloses a variable temperature air-conditioning method using underground reservoir and water-source heat pump with energy-storage and its specialized equipment, which includes a geothermal heat exchanging cycling loop and an air-conditioning heat exchanging cycling loop, wherein the air-conditioning heat exchanging cycling loop includes a variable temperature air-conditioning heat exchanging cycling loop. In the geothermal heat exchanging cycling loop, the water-source heat pump exchanges energy with energy-storage tanks, and in the air-conditioning heat exchanging cycling loop, the energy-storage tanks exchanges energy with an air-conditioning load loop. | 02-25-2010 |
20100058781 | REFRIGERANT SYSTEM WITH ECONOMIZER, INTERCOOLER AND MULTI-STAGE COMPRESSOR - A refrigerant system is provided with a multi-stage compression system. An intercooler is positioned between at least two compression stages to cool a refrigerant, by heat transfer interaction with a secondary fluid, after it has been compressed in the lower compression stages to some intermediate pressure. The intercooler enhances refrigerant system performance, improves compressor reliability, and extends operational envelope. Further, at least one economizer circuit is incorporated into the refrigerant system that returns the economized refrigerant flow at the location between at least two compression stages. | 03-11-2010 |
20100064699 | REFRIGERATION-GENERATION SOLAR UNIT FOR AN AIR-CONDITIONING SYSTEM, HEAT-GENERATION SOLAR UNIT, CORRESPONDING DEVICES AND CORRESPONDING CONTROL METHOD - A refrigeration-generation solar unit is provided for an air-conditioning system. The system includes a first heat exchanger comprising: absorption machine including a boiler and evaporator, the evaporator including at least a second heat exchanger, and the boiler including at least a third heat exchanger; a plurality of solar collectors; a first cooling fluid circuit between the first heat exchanger and the second heat exchanger; and a second heat-transfer fluid circuit between the third heat exchanger and the plurality of solar collectors. The second circuit includes a circulation pump supplying heat-transfer fluid to the plurality of solar collectors and a temperature sensor to measure the temperature of the heat-transfer fluid at the outlet of the plurality of solar collectors. The solar unit includes varies the operational delivery rate of the circulation pump according to the fluid temperature recorded by the temperature sensor at the outlet of the plurality of solar collectors. | 03-18-2010 |
20100236261 | METHOD FOR UTILIZING HEAT OF COMPRESSION - Described is a method for utilizing the heat of compression accumulating during a compression process for air-conditioning and/or heating buildings and/or for heating service water. According to the invention, the heat of compression accumulating during the compression process is at least temporarily transferred to at least one consumer that serves for air-conditioning and/or heating a building and/or for heating service water by means of at least one refrigerant circuit. | 09-23-2010 |
20100251734 | PLANT FOR HEAT-REGULATING A FIRST FLUID AND A SECOND FLUID USED FOR AIR-CONDITIONING PREMISES - A plant for heat-regulating a first fluid and a second fluid for the air-conditioning of premises, including a source of primary thermal energy capable of providing a hot fluid, an absorption refrigerating machine supplied with the primary thermal energy, a first auxiliary circuit for recirculating the first fluid, which exits hot from the absorption machine and returns cold into the same machine, a second auxiliary circuit for recirculating the second fluid, which exits cold from the machine and returns hot into the same machine, there being provided a heat-exchange mass capable of supplying/absorbing heat, means capable of connecting alternately the first auxiliary circuit or the second auxiliary circuit of the absorption machine to the thermal mass or to the user appliances for the associated heat exchange, the primary thermal energy being hot water. | 10-07-2010 |
20100275619 | COOLING SYSTEM FOR A BATTERY SYSTEM AND A METHOD FOR COOLING THE BATTERY SYSTEM - A cooling system for a battery system and a method for cooling the battery system are provided. The cooling system includes a housing having first and second enclosed portions, and a first evaporator and a first evaporator fan disposed in the first enclosed portion that recirculates air in a first closed flow path loop within the first enclosed portion. The first evaporator extracts heat energy from the air in the first closed flow path loop to reduce a temperature level of a first battery module in the first enclosed portion. The cooling system further includes a condenser disposed in the second enclosed portion and fluidly coupled to the first evaporator, which receives heat energy in a refrigerant from the first evaporator and dissipates the heat energy. The cooling system further includes a compressor disposed in the second enclosed portion that recirculates the refrigerant through the first evaporator and the condenser. | 11-04-2010 |
20100319369 | Valve and subcooler for storing refrigerant - A reversible HVAC heating/cooling refrigerant system includes a novel valve system that allows an outdoor heat exchanger to function as a subcooler during a cooling or defrost mode and function as a receiver tank for storing excess liquid refrigerant during a heating mode. In the heating mode, a cooling expansion valve is kept slightly open to flood the subcooler with liquid refrigerant while a heating expansion valve is regulated to maintain a desired level of superheat at the suction side of the refrigerant system's compressor. The novel valve system also serves as a pressure relief valve to protect the subcooler from excess pressure caused by thermal expansion of liquid refrigerant trapped within the subcooler. | 12-23-2010 |
20110030395 | INLET AIR FLOW GUIDE FOR ACDX FAN COIL - An inlet air flow guide for a condensing unit of an air cooled direct expansion (ACDX) air conditioning unit. The flow guide has a panel having at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side. A condensing unit of an ACDX air conditioning unit has a refrigerant cooling coil disposed in an opening, and the inlet air flow guide defines a plenum to provide an air flow passage to the opening from one side thereof. According to a method, the inlet air flow guide is installed onto the condensing unit of an ACDX air conditioning unit, wherein a panel of the flow guide has at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side. | 02-10-2011 |
20110041524 | REFRIGERANT SYSTEM PERFORMANCE ENHANCEMENT BY SUBCOOLING AT INTERMEDIATE TEMPERATURES - A refrigerant system operates in an environment defined by three distinct temperature levels, such as, for instance, the outdoor ambient temperature level, the indoor temperature level and the refrigeration temperature level. The refrigerant system is provided with an air-to-refrigerant heat exchanger located within the general indoor environment and connected to receive the flow of refrigerant from a heat rejection heat exchanger. The air-to-refrigerant heat exchanger gives off heat to the indoor air and in the process further cools the refrigerant flowing to an expansion device to thereby increase the cooling effect provided by an evaporator to the refrigeration area. Provisions are also made to partially or entirely bypass the air-to-refrigerant heat exchanger and/or the heat rejection heat exchanger, on a selective basis. | 02-24-2011 |
20110048037 | Cooling method and plant - The present invention relates to a method for cooling an indoor environment in a house with the aid of a cooling plant, and to a cooling plant for cooling an indoor environment. The cooling plant comprises a cold store in the form of a rock store, a cooling system for cooling the indoor environment and a cooling medium for transport of cold. The cooling plant has only one cooling mode and only one charging mode. In cooling mode, the cooling medium is cooled with cold from the rock store and the cooling system is fed only with cooling medium cooled only with cold from the rock store. In charging mode, the cooling medium is cooled only with outside air and/or ground cold and the rock store is cooled only with the cooling medium cooled only by outside air and/or ground cold. | 03-03-2011 |
20110056219 | Utilization of Exhaust of Low Pressure Condensing Steam Turbine as Heat Input to Silica Gel-Water Working Pair Adsorption Chiller - A device and method for utilizing waste heat from the exhaust of a low pressure condensing steam turbine. An adsorption chiller is driven by heat recovered from the exhaust steam by incorporating a heat exchanger between the low pressure condensing steam turbine and the condenser of the steam turbine. The heat exchanger provides heated fluid which is then utilized as the hot water for the adsorption chiller. The adsorption chiller outputs chilled water which may be beneficially used for many purposes in the power plant. | 03-10-2011 |
20110072836 | REFRIGERATION SYSTEM HAVING A VARIABLE SPEED COMPRESSOR - A two-stage cascade refrigeration system is provided having a first refrigeration stage and a second refrigeration stage. The first refrigeration stage defines a first fluid circuit for circulating a first refrigerant, and has a first compressor, a condenser, and a first expansion device that is in fluid communication with the first fluid circuit. The second refrigeration stage defines a second fluid circuit for circulating a second refrigerant, with the second refrigeration stage having a second compressor, a second expansion device, and an evaporator that is in fluid communication with the second fluid circuit. A heat exchanger is in fluid communication with the first and second fluid circuits to exchange heat between the first and second refrigerants. At least one of the first or second compressors is a variable speed compressor. | 03-31-2011 |
20110083452 | AUXILIARY REFRIGERATION SYSTEM AND OPERATING METHOD - Auxiliary refrigeration system used to refrigerate a wind turbine's gearbox ( | 04-14-2011 |
20110126559 | CONTROL SYSTEM - A vapor compression system that circulates a fluid through a closed loop interconnecting a compressor, a first heat exchanger, a flow-restricting expansion device, and a second heat exchanger. The system further includes a vessel in a first fluid communication and a selective second fluid communication with the loop between the compressor and the first heat exchanger with each of the first and second fluid communication configured to receive fluid from the loop. The vessel is in a third fluid communication with the first heat exchanger configured to provide fluid to the first heat exchanger. In response to a predetermined ambient temperature surrounding the system, the second fluid communication is selectively opened to provide an increased fluid flow from the vessel to the first heat exchanger. | 06-02-2011 |
20110146305 | Optimization Of An Overall Heating Capacity Of An Air Conditioning System - The invention relates to a control process for an air conditioning system. The air conditioning system comprises a thermal loop ( | 06-23-2011 |
20110146306 | START-UP FOR REFRIGERANT SYSTEM WITH HOT GAS REHEAT - A refrigerant system has a compressor for compressing and delivering refrigerant to a heat rejecting heat exchanger. Refrigerant from the heat rejecting heat exchanger passes through an expansion device, and then to an evaporator. A reheat circuit includes a reheat valve for selectively tapping refrigerant from a location downstream of the compressor and upstream of the condenser. The reheat refrigerant passes through a reheat heat exchanger, the reheat heat exchanger being positioned to be in a path of air having passed over the evaporator, and delivered into an indoor environment to be conditioned. A control for the refrigerant system is operable to receive inputs from the indoor environment to be conditioned, and to control the several components in the refrigerant system, the control being operable to determine a request for dehumidification provided without any request for significant change in the temperature of the air being delivered into the indoor environment to be conditioned, but said control starting operation of the refrigerant system by enabling cooling mode of operation initially and at least for a short period of time. | 06-23-2011 |
20110154837 | REFRIGERANT SYSTEM WITH ADAPTIVE HOT GAS REHEAT - A refrigerant system incorporates a hot gas reheat circuit. The hot gas reheat circuit includes a reheat valve for selectively tapping at least a portion of refrigerant from a location downstream of a compressor and upstream of a condenser, and through a reheat heat exchanger. At least one refrigerant flow control device controls the amount of refrigerant passing through the reheat heat exchanger. A control for the refrigerant system is operable to receive inputs from an indoor environment, and to control the amount of refrigerant passing through the reheat heat exchanger to achieve desired temperature and humidity in the conditioned environment. | 06-30-2011 |
20110167842 | ADSORPTION APPARATUS COMPRISING A HEAT RECOVERY SYSTEM - The invention relates to an adsorption machine, comprising
| 07-14-2011 |
20110167843 | HEAT PUMP AND METHOD FOR CALCULATING HEATING-MEDIUM FLOW RATE OF HEAT PUMP - A heating-medium flow rate is obtained with sufficient accuracy even if an inexpensive flow rate sensor is used. Provided is a turbo-refrigerator including an evaporator that cools or heats a heating medium flowing from an external load, a condenser that exchanges heat with outside air or cooling water, a coolant circulation path through which a coolant is circulated between the evaporator and the condenser, and a turbo-compressor provided in the coolant circulation path, the turbo-refrigerator comprising a differential pressure sensor that measures the differential pressure between the inlet-side pressure and the outlet-side pressure of cold water in the evaporator, and a control panel storing a loss factor of the evaporator and calculating the flow rate of the cold water in the evaporator on the basis of the loss factor and the differential pressure output from the differential pressure sensor, wherein the control panel performs control using the calculated flow rate of the cold water and transmits the flow rate of the cold water to facility-side equipment. | 07-14-2011 |
20110173998 | PROCESS AND APPARATUS FOR COOLING - The invention relates to the creation of hybrid refrigeration systems. In one embodiment a low pressure booster circuit is linked to an absorption plant to provide cooling at lower temperatures that can be achieved by the absorption plant alone. The combined systems are efficient compared to vapour compression systems, especially when “waste” heat from other processes is used to drive the absorption part of the circuit. The absorption plant can be provided with heat either by direct firing of a fuel, by waste heat from a combined heat and power (CHP) prime mover (such as a gas engine or gas turbine for example), or by any suitable source of waste heat from another process. | 07-21-2011 |
20110197600 | HEAT PUMP WATER HEATER AND OPERATING METHOD THEREOF - A refrigerant circuit of a heat pump water heater has a compressor, a four-way valve, a water heat exchanger, a heat storage transfer pipe contained in a heat storage water tank, an expansion valve, and an air heat exchanger and forms a refrigerating cycle by sequentially connecting them. A water circuit of the heat pump water heater has a water inlet pipeline that supplies water to the water heat exchanger, a hot water tank, and a water outlet pipeline that allows the water heat exchanger to communicate with the hot water tank, in which water is supplied to the heat storage water tank through a heat storage water tank water feed pipe branching from the water inlet pipeline by opening a heat storage water tank water feed opening/closing valve) and the water in the heat storage water tank can be discharged through the heat storage water tank water discharge pipe (by opening a heat storage water tank water discharge opening/closing valve). | 08-18-2011 |
20110203298 | Heat pump system and control method thereof - A heat pump system, the operation of which is controlled using a temperature difference between a water inlet and a water outlet of a heat exchanger, exchanging heat between a refrigerant and water, and a control method thereof. The heat pump system includes temperature sensors installed on a water circulation pipe unit at water inlet and outlet sides of a heat exchanger, and heats a load to a set temperature by controlling a compressor or an expander according to a difference between temperatures sensed by the temperature sensors. Here, a temperature of water transmitted to the load is set to be greater than a target load temperature by a reference value, and if the temperature difference is smaller than a designated value, the operation of the heat pump system is stopped. | 08-25-2011 |
20110209484 | CONDENSER DRYER HAVING A HEAT PUMP, AND METHOD FOR OPERATING THE SAME - A condenser dryer includes a drying chamber for items to be dried; a process-air circuit including a fan; and a heat pump in which a refrigerant circulates. The heat pump has an evaporator and a condenser, with the evaporator or the condenser or both being a heat exchanger having level surfaces and including at least one endlessly folded, flattened tube to form a plurality of rows of meander stacks in laterally offset relationship. | 09-01-2011 |
20110214437 | Heat pump system and control method thereof - A heat pump system which executes cooling and heating operations of an A2A indoor unit and cooling and heating operations and a hot water operation of an A2W indoor unit in a time division multiplexing (TDM) method, and a control method thereof. Further, the heat pump system solves shortage of a refrigerant during a heating operation of the A2A indoor unit or the A2W indoor unit when the TDM method is used. Therefore, the heat pump system includes a control unit to alternately operate the A2A indoor unit or the A2W indoor unit, upon judging that a simultaneous operating condition of the A2A indoor unit or the A2W indoor unit is satisfied. The heat pump system further includes a refrigerant distribution unit to circulate a refrigerant selectively to the A2A indoor unit or the A2W indoor unit. | 09-08-2011 |
20110219791 | COMPOSITION INCLUDING 2,3,3,3-TETRAFLUOROPROPENE, METHOD FOR HEATING AND/OR AIR CONDITIONING A VEHICLE - The present invention relates to a composition including 2,3,3,3-tetrafluoropropene, difluoromethane and at least one compound chosen among propane, propylene and ethylene, suitable for being used for refrigeration, air-conditioning and heating. The present invention also relates to a method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including said composition. Said method is particularly suitable when the outside temperature is lower than −20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. | 09-15-2011 |
20110219792 | METHOD FOR HEATING AND/OR AIR CONDITIONING A VEHICLE - The present invention relates to method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including 2,3,3,30-tetrafluoropropane and at least one compound chosen from among propane, propylene and ethylene. Said method is particularly suitable when the outside temperature is lower than −20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. The present invention also relates to a composition including 2,3,3,3-tetrafluoropropane and at least one compound chosen from among propylene and ethylene, suitable for being used for refrigeration, air conditioning and heating. | 09-15-2011 |
20110225990 | Efficient heat pump - An efficient heat pump is disclosed, the heat content of the refrigerant flowing out of an existing condenser is reduced by sub-cooling using an additional condenser. The heat reduced during the sub-cooling phase is added to the evaporator to superheat the refrigerant during evaporation phase. Removing heat from condensation phase (which is otherwise wasted) of the refrigeration cycle and adding that heat to the evaporation phase (which requires additional heat) may enhance the efficiency of the heat pump. | 09-22-2011 |
20110225991 | HIGH EFFICIENCY DOUBLE-EFFECT CHILLER HEATER APPARATUS - The absorption chiller-heater apparatus of present invention utilizes a portion of direct heat, used to heat water, for providing the refrigeration effect. The external heat input required for providing refrigeration is minimal; hence, the efficiency of the apparatus is increased by 30-40% over the conventional systems. Further, as the quantum of the external heat source required for a new cycle is reduced, the size of the high temperature generator required, is smaller, which results in lower capital costs. The apparatus provides chilled water which can be used for various industrial purposes. The absorption chiller-heater reduces CO | 09-22-2011 |
20110232305 | SYSTEMS AND METHODS FOR GENERATING POWER AND CHILLING USING UNUTILIZED HEAT - The present application provides a sorption system for generating power and chilling that includes at least one absorber to absorb a working fluid in a liquid sorbent, a pump in fluid communication with the absorber to yield a feed of pressurized liquid sorbent and absorbed working fluid, a heat source to heat the feed of pressurized liquid sorbent and absorbed working fluid to yield a feed of working fluid at a supercritical state, a generator in fluid communication with the feed of working fluid at a supercritical state to yield power and a feed of working fluid in an at least partially condensed state, and an evaporator in fluid communication with the feed of working fluid in the at least partially condensed state to yield chilling and uncondensed working fluid. Additional systems and method for the generating power and chilling are provided. | 09-29-2011 |
20110239666 | HEAT TRANSFER PROCESSES AND EQUIPMENT FOR INDUSTRIAL APPLICATIONS - Embodiments of the present invention permit the transfer of heat energy from one process fluid to another in an industrial process without the need for an energy field or centralized energy storage. Preferred embodiments include one or more heat transfer modules that draw heat from one process fluid into circulating refrigerant in an evaporator heat exchanger and supply that heat to a different process fluid in a condenser heat exchanger. In some embodiments, adjustments are made to one or more parameters of one or more process fluids to ensure the desired heat transfer is accomplished with the heat transfer module's compressor operating near optimum efficiency. | 10-06-2011 |
20110265499 | CONTROLS FOR HIGH-EFFICIENCY HEAT PUMPS - As discussed herein, a first aspect of the present invention provides a method of providing improved efficiency in heating/cooling. The method can include operating an HVAC system that includes first and second heat pump compressors working together with corresponding heat pump expansion valves and heat pump heat exchangers. The method can include collecting HVAC fluid information concerning actual conditions of an HVAC fluid flowing in the HVAC system via sensors positioned in various places throughout the HVAC system. The method can include transmitting an update that includes HVAC fluid information. The method can include receiving control instructions at a heat pump controller. The method can include implementing the control instructions with the heat pump controller. Steps of the method can be repeated periodically during operation of the HVAC system. | 11-03-2011 |
20110277488 | Pool Heating System and Method - A pool heating system is disclosed. The pool heating system includes, in some embodiments, an immersed condenser coil. In some embodiments, the immersed condenser coil is immersed in pool of water receiving hot refrigerant gas at high pressure from an outdoor unit, transferring heat to water in the pool, condensing the gas and transmitting condensed refrigerant to the outdoor unit. The system also includes an outdoor unit. In some embodiments, the outdoor unit includes a compressor, an expansion valve, an evaporator, and a fan. | 11-17-2011 |
20110283718 | HEAT-SOURCE SYSTEM AND METHOD FOR CONTROLLING THE SAME - A heat-source system includes centrifugal-chillers, cooling-water pumps, cooling towers, cooling-tower fans, chilled-water pumps, and a control unit for controlling them. A plurality of the cooling towers are provided so as to have a cooling-tower capacity corresponding to the total capacity of the rated capacities of the respective centrifugal-chillers, the cooling towers being commonly connected to the plurality of centrifugal-chillers. The control unit preliminarily prepares an optimum cooling-tower capacity relationship representing the cooling-tower capacity with which the heat-source system efficiency, taking into consideration the centrifugal-chillers, the cooling-water pump, the cooling towers, the cooling-tower fan, and the chilled-water pump, is higher, in relation to the outside-air wet-bulb temperature and the centrifugal-chiller partial load factor. The control unit determines the number of cooling towers to be operated by referring to the optimum cooling-tower capacity relationship, on the basis of the outside-air wet-bulb temperature and the partial load factor of the centrifugal-chillers during operation. | 11-24-2011 |
20110296855 | Thermal Management System with Dual Mode Coolant Loops - A dual mode, thermal management system for use in a vehicle is provided. At a minimum, the system includes a first coolant loop in thermal communication with a battery system, a second coolant loop in thermal communication with at least one drive train component (e.g., electric motor, power electronics, inverter), and a dual mode valve system that provides means for selecting between a first mode where the two coolant loops operate in parallel, and a second mode where the two coolant loops operate in series. | 12-08-2011 |
20110302936 | REFRIGERATION SYSTEM HAVING A VARIABLE SPEED COMPRESSOR - A two-stage cascade refrigeration system is provided having a first refrigeration stage and a second refrigeration stage. The first refrigeration stage defines a first fluid circuit for circulating a first refrigerant, and has a first compressor, a condenser, and a first expansion device that is in fluid communication with the first fluid circuit. The second refrigeration stage defines a second fluid circuit for circulating a second refrigerant, with the second refrigeration stage having a second compressor, a second expansion device, and an evaporator that is in fluid communication with the second fluid circuit. A heat exchanger is in fluid communication with the first and second fluid circuits to exchange heat between the first and second refrigerants. At least one of the first or second compressors is a variable speed compressor. | 12-15-2011 |
20110314843 | CO2-REFRIGERATION DEVICE WITH HEAT RECLAIM - A refrigeration device containing CO | 12-29-2011 |
20120011865 | Combined Water Extractor and Electricity Generator - A water extraction system having a cooling system adapted to cool air to below the dew point, the cooling system including an absorption chiller ( | 01-19-2012 |
20120011866 | REFRIGERANT VAPOR COMPRESSION SYSTEM WITH HOT GAS BYPASS - A refrigerant vapor compression system includes a hot gas bypass line establishing refrigerant vapor flow communication between the compression device and the refrigerant heat absorption heat exchanger, and bypassing the refrigerant heat rejection heat exchanger and the primary expansion device. A refrigerant vapor flow control device is interdisposed in the hot gas bypass line. The flow control device has at least a first open position in which refrigerant vapor flow may pass through the hot gas bypass line and a closed position in which refrigerant vapor flow may not pass through the hot gas bypass line. | 01-19-2012 |
20120031119 | ATMOSPHERIC LAPSE RATE COOLING SYSTEM - A heat transfer fluid can be cooled using the atmospheric thermal lapse rate. The heat transfer fluid can be ascended to a predetermined altitude above ground level where a temperature of the atmosphere is less than a temperature at the ground level. The heat transfer fluid can be cooled to a predetermined temperature by heat exchange between the heat transfer fluid and the atmosphere. The heat transfer fluid can then be descended to ground level while inhibiting heat transfer with the atmosphere tending to warm the cooled fluid. | 02-09-2012 |
20120042665 | REJECT HEAT DRIVEN ABSORPTION COOLING CYCLE - An electric machine system includes: an electric motor; and an absorption cooling system driven by heat generated by the electric motor and configured to cool a primary cooling fluid that removes the heat from the electric motor to a temperature below an ambient temperature of an ultimate heat sink. A method for operating the electric machine system is also disclosed. | 02-23-2012 |
20120055177 | Air conditioner and control method thereof - An air conditioner controls supply of refrigerant so that the refrigerant is first supplied to one or more indoor units in operation from an outdoor unit, and is then supplied to a hot water generator, thereby sufficiently supplying refrigerant to the indoor units in heating operation even when the hot water generator is operated. | 03-08-2012 |
20120055178 | HEAT PUMP APPARATUS AND METHOD FOR CONTROLLING REGULATING VALVE - It is aimed to provide a heat pump type hot-water supply outdoor apparatus that can control a temperature of a compressor shell, according to a water temperature of a water circuit and a temperature of the compressor. A heat pump type hot-water supply outdoor apparatus includes a refrigeration cycle including a compressor, a water-refrigerant heat exchanger, an expansion valve, and an air heat exchanger, a water jacket that is arranged on the shell of the compressor and connected in the middle of a branch water circuit branching in parallel to a main water circuit which starts from a hot water storage tank and returns to the hot water storage tank through a water-refrigerant heat exchanger, a water flow valve that is connected between a branch and the water jacket and regulates the quantity of water flow, according to a control signal, a shell temperature detection sensor that senses a temperature of the shell of the compressor, a water temperature sensor that is installed in the vicinity of the branch and senses a temperature of the water flowing out of the hot water storage tank, and a control apparatus that generates a control signal for controlling the water flow valve, based on the temperature sensed by the shell temperature detection sensor and the temperature sensed by the water temperature sensor, and outputs it to the water flow valve. | 03-08-2012 |
20120060521 | TRANSCRITICAL HEAT PUMP WATER HEATER AND METHOD OF OPERATION - A method for increasing efficiency of a transcritical heat pump water heater system is provided, as well as the corresponding system. The refrigerant, such as CO2, is compressed to a supercritical point and passed through a gas cooler that is wrapped at least partially around a water storage tank, wherein the refrigerant transfers heat to water stored in the tank. The hot water is discharged from the storage tank proximate to a top of the tank, and cold water is introduced into the tank proximate to a bottom of the tank. The supercritical refrigerant is directed to flow through the gas cooler from a top point to a lowermost point in a flow direction such that the refrigerant exits the gas cooler proximate to the bottom of the tank at a location of the coldest water within the storage tank. | 03-15-2012 |
20120060522 | METHOD FOR CONTROLLING AN AIR CONDITIONING SYSTEM - An air conditioning method is provided. The method comprises when a refrigerant circuit is in operation and a temperature of an evaporator of the refrigerant circuit is lower than a temperature of a heat exchanger of a heating circuit, transferring heat from the heat exchanger to air passing through the heat exchanger, and when the refrigerant circuit is not in operation and the temperature of the evaporator is higher than the temperature of the heat exchanger, transferring heat from the air passing through the heat exchanger to the heat exchanger. In this way, the heat exchanger functions to augment the cooling capabilities of the evaporator. | 03-15-2012 |
20120067067 | INSTALLATION AND METHOD FOR THE PRODUCTION OF COLD AND/OR HEAT - An installation for the production of cold and/or heat has a driving and a receiving machine. The driving machine has means for circulating a working fluid G | 03-22-2012 |
20120085106 | PROCESS FOR HEAT INTEGRATION BY MEANS OF A REFRIGERATION SYSTEM - A process for heat integration in engineering processes in which, in a heat carrier circuit ( | 04-12-2012 |
20120085107 | HEAT TRANSFER PROCESSES AND EQUIPMENT FOR INDUSTRIAL APPLICATIONS - Embodiments of the present invention permit the transfer of heat energy from one process fluid to another in an industrial process without the need for an energy field or centralized energy storage. Preferred embodiments include one or more heat transfer modules that draw heat from one process fluid into circulating refrigerant in an evaporator heat exchanger and supply that heat to a different process fluid in a condenser heat exchanger. In some embodiments, adjustments are made to one or more parameters of one or more process fluids to ensure the desired heat transfer is accomplished with the heat transfer module's compressor operating near optimum efficiency. | 04-12-2012 |
20120085108 | Desalination Using Low-Grade Thermal Energy - This invention describes a low temperature, self-sustainable desalination process operated under natural vacuum conditions created and maintained by barometric pressure head. | 04-12-2012 |
20120090337 | Heat Pumps With Unequal Cooling and Heating Capacities for Climates Where Demand for Cooling and Heating are Unequal, and Method of Adapting and Distributing Such Heat Pumps - Heat pumps for climates where demand for cooling and heating are unequal and methods of adapting and distributing heat pumps for such climates. Heat pumps include a compressor, compressor motor, variable-speed drive, and controller. In a number of embodiments, non-volatile memory stores sets of constant speeds for cooling and heating, and a person can select, via an input device, different sets of speeds for cooling and heating to provide the different cooling and heating capacities. The controller then operates the unit at the selected speeds, selecting from within the set based on demand for cooling or heating. In some embodiments, different sets of speeds may have the same minimum speed but different maximum speeds. Identical heat pumps can be configured to have different capacity ratings and different advertized efficiencies for different climates. | 04-19-2012 |
20120096877 | HYDROFLUOROCARBON REFRIGERANT COMPOSITIONS FOR HEAT PUMP WATER HEATERS - Hydrofluorocarbon refrigerant compositions enable the use of existing compressor technologies in heat pump water heaters in a reliable (low discharge temperatures and pressures) and efficient (high capacity and efficiency) manner. The refrigerant comprises blends of pentafluoroethane (HFC-125), difluoromethane (HFC-32), tetrafluoroethane (HFC-134a) and tetrafluoropropene (HFO-1234ze). | 04-26-2012 |
20120111032 | HEAT PUMP SUPPLY APPARATUS HAVING A COMBINED USE WITH AN AIR CONDITIONER - A hot water supply apparatus for combined use with an air conditioner is provided that may include an indoor unit having an indoor heat exchanger to heat exchange a first refrigerant with indoor air, and a cascade hot water heater connected to the indoor unit to receive the first refrigerant and to provide a second refrigerant to heat water. The cascade hot water heater may perform a heat exchange between the first refrigerant and a second refrigerant. The cascade hot water heater may include a capacity variable compressor to limit a maximum flowing amount of the second refrigerant and increase a flowing amount of the first refrigerant to flow to the indoor unit. | 05-10-2012 |
20120117986 | Solar collector and solar air conditioning system having the same - A solar air conditioning system and method of superheating working fluid is provided. The solar air conditioning system superheats the working fluid using radiant energy from the sun, and then delivers the working fluid as a superheated and higher-pressured gas to a condenser within the solar air conditioning system. The solar air conditioning system includes a solar collector within which the working fluid is superheated. | 05-17-2012 |
20120125019 | SELF SUSTAINING ENERGY SYSTEM FOR A BUILDING - A self sustaining energy system for a building is provided part of which is typically driven by geothermal energy. The energy system typically uses a ground source heat pump for heating and cooling the building airspace and an organic Rankine cycle drive for producing electricity. A solar powered heating system may also serve as a heat source for providing domestic hot water and supplemental airspace heating. | 05-24-2012 |
20120151946 | METHOD AND DEVICE FOR HEAT RECOVERY ON A VAPOUR REFRIGERATION SYSTEM - A method and a device for heat recovery on a vapour compression refrigeration system allowing to produce hot water, includes at least a first piping closed refrigerating circuit in which a refrigerant fluid circulates, a compressor, an evaporator, an expansion valve, a condenser and/or a heat recovery unit including a water inlet and a water outlet respectively connected to a second piping circuit comprising a circulating pump. At least one physical unit of the refrigerant fluid and/or water of the second piping circuit is determined. When the physical unit is lower than a predetermined threshold, condensing temperature is increased, and when said physical unit is greater than said predetermined threshold, condensing temperature is decreased to a minimum value. | 06-21-2012 |
20120174602 | SYSTEM FOR THE OVERALL CONTROL OF HEAT FOR ELECTRICALLY PROPELLED MOTOR VEHICLE - A system for overall control of heat for a passenger compartment and for electrical units in a motor vehicle that is completely or partially propelled by an electric engine powered by a battery, including a heat-control fluid circuit coupled to a heating device and/or to a cooling device enabling the fluid to store calories or frigories when the system is plugged into an electrical network outside of the vehicle. The fluid circuit is capable of releasing calories and/or frigories to the air of the passenger compartment, in an alternating manner, either through a heat exchanger between the circuit and the air of the passenger compartment, or using a climate circuit forming a heat pump and/or an air-conditioning system. | 07-12-2012 |
20120186278 | HOT WATER STORAGE TYPE HOT WATER SUPPLY SYSTEM AND OPERATION METHOD OF THE SAME - A hot water storage type hot water supply system includes a storage battery unit, a heat pump cycle, a water storage tank, a water circulation path, first and second paths, first and second temperature sensors, and a controller. The heat pump cycle circulates a first refrigerant. The first and second paths circulate a second refrigerant. The first and second sensors sense temperatures of the storage battery unit and water stored in the tank, respectively. The controller controls the second refrigerant to flow in the first or the second path when the temperature of the storage battery unit sensed by the first sensor is higher or lower than a first or a second predetermined temperature, respectively. The controller controls to close the first and second paths when the temperature of the storage battery unit sensed by the first sensor is not lower than the second predetermined temperature and not higher than the first predetermined temperature. | 07-26-2012 |
20120186279 | UTILITIES GRID FOR DISTRIBUTED REFRIGERATION SYSTEM - A distributed refrigeration appliance system for use in a residential kitchen and other locations in a dwelling and includes multiple separate refrigeration appliance modules, a central cooling system and a cooling circuit. The system can include one or more satellite stations having a heat exchanger for supplying chilled air to one or more refrigeration appliance modules. One or more refrigeration appliance modules can include a thermal cascade cooling device to cool the module to lower temperatures than the cooling circuit can attain. One or more refrigeration appliance modules can be refrigeration/storage modules that can provide refrigerated, unconditioned or heated storage space. The central cooling system can be a vapor compression system having a refrigerant circuit connecting the modules. Alternately, the central cooling system can cool a secondary cooling medium circuit. The refrigeration system can have more than one refrigeration machine providing cooling to the secondary refrigeration loop. | 07-26-2012 |
20120216551 | CASCADE REFRIGERATION SYSTEM WITH FLUOROOLEFIN REFRIGERANT - The present invention relates to a cascade refrigeration system which circulates a refrigerant comprising a fluoroolefin therethrough. The cascade refrigeration system includes a low temperature refrigeration loop and a medium temperature refrigeration loop. The fluoroolefin circulates through either loop, or both. In a particular embodiment, the fluoroolefin circulates through the medium temperature loop. In a particular embodiment, where the cascade refrigeration system includes a first and a second cascade heat exchanger, and a secondary heat transfer loop which extends between the first and second cascade heat exchangers, either the first and/or second refrigerant may be, but need not necessarily be, a fluoroolefin. | 08-30-2012 |
20120240603 | Integrated Gasification Combined Cycle System with Vapor Absorption Chilling - The present application and the resultant patent provide an integrated gasification combined cycle system. The integrated gasification combined cycle system may include a gas turbine engine, one or more power plant components, one or more carbon dioxide compressors, and a vapor absorption chiller. The vapor absorption chiller is driven by a waste heat source flow from the carbon dioxide compressors to produce a chilling medium flow to cool the power plant components. | 09-27-2012 |
20120240604 | HEAT PUMP SYSTEM FOR VEHICLE - A heat pump system for a vehicle includes a water cooled condenser that uses a coolant as a heat exchange media and uses waste heat generated from a motor and an electronic device to improve heating performance, efficiency, and dehumidifying performance. A control method is also described. | 09-27-2012 |
20120247132 | Air conditioning/dehumidifying unit - An air conditioning unit having: a first air passageway and a second air passageway adjacent to the first air passageway. Dampered air inlets are provided at one end of the first and second air passageways to selectively provide indoor air or outdoor air to each passageway. There is an indoor air outlet in the first air passageway and an outdoor air outlet in the second air passageway, both outlets at the other end of the passageways. There is a first blower in the first passageway and a second blower in the second passageway for moving air through each passageway. The unit has a refrigerant system with an evaporator in the first passageway, a compressor, a condenser in the second passageway, and a refrigerant line joining the evaporator, the compressor, and the condenser, in series, in a closed loop. The unit can be used in an air conditioning mode, a dehumidifying mode and a purge/ventilating mode. The unit is particularly suited for use in an indoor swimming pool. | 10-04-2012 |
20120291459 | METHOD AND APPARATUS FOR AIRCRAFT GALLEY COOLING - Described in this application for patent is a novel method and apparatus for providing cooling to an aircraft galley. The aircraft galley is cooled by means of a central aircraft cooling line, including a phase change cooling system and a ram air heat exchanger. | 11-22-2012 |
20120291460 | HEAT PUMP DEVICE AND REFRIGERANT BYPASS METHOD - An outdoor unit includes a bypass circuit that makes a part of refrigerant that is discharged from a compressor be bypassed to a connecting part at the time of defrosting operation. A control device of the outdoor unit performs control of opening an electromagnetic valve in the bypass circuit based on an water temperature TW (in) in an water inlet and an water temperature TW (out) in an water outlet of an water heat exchanger at the time of the defrosting operation. Further, a control device controls a valve travel of the valve of the third expansion valve in the bypass circuit based on a refrigerant temperature TR (in) in a refrigerant inlet and a refrigerant temperature TR (out) in a refrigerant outlet of the water heat exchanger in a case of the electromagnetic valve being in an open state at the time of the defrosting operation. | 11-22-2012 |
20120304672 | FUEL CELL-COUPLED HEATING AND REFRIGERATION SYSTEM - Disclosed are fuel cell coupled refrigeration systems and to the use of fuel cells to provide thermal energy to a refrigeration system. More particularly, a heat exchanger couples, directly or indirectly, to a fuel cell and a heat driven refrigeration system to transfer at least a portion of thermal energy generated by the fuel cell to the refrigeration system, thereby driving a refrigeration cycle of the refrigeration system. | 12-06-2012 |
20120304673 | INTEGRATED ENERGY MANAGEMENT SYSTEM INCLUDING A FUEL CELL COUPLED REFRIGERATION SYSTEM - The disclosure relates to an integrated energy management system for managing thermal and electrical energy in a fuel cell coupled refrigeration system. In one example, a refrigeration cycle is driven by heat provided alternatively by a fuel cell and an electric heating device. In another example, a refrigeration cycle is driven by heat provided by a fuel cell to reduce consumption of electrical grid supplied power. | 12-06-2012 |
20120304674 | CLIMATE CONTROL SYSTEM FOR A VEHICLE AND METHOD FOR CONTROLLING TEMPERATURE - In a climate control system for a vehicle having at least one refrigerant circuit, at least one temperature control circuit for controlling the temperature of a vehicle interior, and at least one vehicle component, in particular of an electric vehicle or hybrid vehicle, at least one device for absorbing heat from the temperature control circuit and at least one device for releasing heat to the temperature control circuit are provided. In a method for controlling the temperature of vehicle components using at least one refrigerant circuit and at least one temperature control circuit, heat is absorbed from the temperature control circuit into the refrigerant circuit on the low-pressure side of the refrigerant circuit, and heat is released to the temperature control circuit by the refrigerant circuit on the high-pressure side of the refrigerant circuit. | 12-06-2012 |
20120324923 | HEAT PUMP AND METHOD FOR CONTROLLING THE SAME - A method for controlling a heat pump including an outdoor unit including a compressor and a first heat exchanger, an indoor unit including a second heat exchanger and an expansion valve to perform air stream cooling and heating operations, and a hydro unit connected among the compressor, the first heat exchanger, and the expansion valve, to change a flow direction of refrigerant in accordance with cold water and hot water operations. In the control method, it is determined whether the hot water operation and the air stream heating operation are simultaneously selected. When the hot water operation and the air stream heating operation are simultaneously selected, an opening degree of a valve included in the hydro unit is adjusted, to adjust amounts of refrigerant respectively supplied from the compressor to the hydro unit and the indoor unit. | 12-27-2012 |
20120324924 | THERMAL POWER UPGRADE FACILITY - The invention relates to a facility making it possible to maximize the overall power output, the facility including at least one absorption group ( | 12-27-2012 |
20130008193 | MODULAR CHILLER HEATER REVERSING/NON-REVERSING CONVERSION APPARATUS AND METHOD - A chiller heater building air space conditioning system is set out including a plurality of interconnected modular chiller/heater units which can be operated variously in a chilling mode, a heating mode, or an off mode. An arrangement for converting a system comprising reversible modular heat pump chiller heater elements into a system comprising non-reversible modular chiller heater elements is set out. | 01-10-2013 |
20130019615 | HEAT PUMP SYSTEM FOR VEHICLE AND CONTROL METHOD THEREOF - A method for controlling a heat pump system is provided with air conditioning means connected to a controller and including a plurality of valves and expansion valves connected to each other through a refrigerant line and a bypass line, a compressor, an accumulator, an evaporator, an exterior condenser, an interior condenser, and an HVAC module having a PTC heater and a door at a warming mode, a cooling mode, a dehumidification mode, a dehumidification/defrosting mode, or an extremely low temperature dehumidification/defrosting mode according to selection of a driver. | 01-24-2013 |
20130025300 | HEAT PUMP WATER HEATER - An energy efficient heat pump system capable of operating in extreme low and high temperature environments. The heat pump system includes an evaporator, a heater operatively associated with the evaporator, compressor and condenser. In an exemplary embodiment, the heat pump system may further include a plasma pulse-spark system to facilitate removal of scale deposits. The heater heats an environmental medium prior to the environmental medium exchanging energy with a refrigerant located in an evaporator coil of the evaporator in order to maintain a predetermined minimum temperature differential between the environmental medium when it contacts the evaporator coil and the refrigerant when located in the evaporator coil. The system allows efficient operation at low temperatures. | 01-31-2013 |
20130025301 | HOT WATER SUPPLY SYSTEM CONTROL APPARATUS AND HOT WATER SUPPLY SYSTEM CONTROL PROGRAM AND HOT WATER SUPPLY SYSTEM OPERATING METHOD - An operating method in a heat pump hot water supply system of an indirect heating method by which an average COP during a water heating period can be improved and a risk of running out of hot water can be prevented from increasing. For a heat pump hot water supply system of the indirect heating method, a change in heat transfer efficiency of a second heat exchanger is estimated by using either or both of a tank water temperature and a temperature of a second refrigerant flowing through a water circuit. When the heat transfer efficiency is determined to be high, an operation switching unit raises an output of a heat source device. When the heat transfer efficiency is determined to be low, the operation switching unit lowers the output of the heat source device. | 01-31-2013 |
20130042635 | HEAT PUMP WATER HEATER IN CONJUNCTION WITH GAS WATER HEATER - A method for heating water delivered and stored in a water heater storage tank includes activating at least one of dual fuel heater types in response to various modes of operation. The water heater is preferably a dual fuel or hybrid heat pump gas water heater that includes a heat pump as the first type of heater for heating the water, and a gas burner as the second type of heater that transfer heat to the water. One or more sensors monitor water temperature and communicate with a controller to activate one of, or both of, the first and second types of heaters. If there is an electrical power outage, the hybrid heat pump gas water heater is still able to heat the water. | 02-21-2013 |
20130042636 | HEAT TRANSFER SYSTEM WITH INTEGRATED EVAPORATOR AND CONDENSER - Two phase heat transfer systems including integrated fluid transfer paths for exchange of a working fluid between an evaporator and condenser. Separate fluid transfer paths may be defined for communication of working fluid between the evaporator and condenser, wherein at least one of the fluid transfer paths is integrated with the evaporator and/or condenser. In one embodiment, both first and second fluid transfer paths are integrally provided to establish direct fluid communication between the evaporator and condenser to facilitate flow of vaporized and condensed working fluid respectively. | 02-21-2013 |
20130042637 | MODULAR AIR CONDITIONING SYSTEM WITH HEAT PUMP FUNCTIONALITY - A modular vehicle air-conditioning unit for heating and cooling air includes a housing having at least one blower and a plurality of flaps for setting air flow paths and a refrigerant circuit in fluid communication with the housing. The refrigerant circuit includes a condenser, an evaporator, a compressor, and an expansion device. An evaporator air flow path through the evaporator and a condenser air flow path through the condenser are formed in the housing. At least one of the evaporator air flow path and the condenser air flow path receives air from at least one of an environment, a passenger compartment of a vehicle, and any mixture of thereof. | 02-21-2013 |
20130047639 | SYSTEM AND METHOD FOR STORING THERMAL ENERGY AS AUXILIARY POWER IN A VEHICLE - A system is provided for capturing energy from heat expelled in an exhaust of an engine of a motor vehicle and storing the captured energy. The system comprises a generator, a condenser, an evaporator, and an absorber. The generator captures heat from the exhaust of the engine and may be configured for circulating a first solution having a solute that is vaporizable by heat captured by the generator. The condenser may be coupled to the generator for receiving vaporized solute and condensing the vaporized solute to a liquid. The evaporator may be coupled to the condenser and have an orifice between the condenser and the evaporator. The evaporator may have a first fluid passage for circulating the solute and a second fluid passage for circulating a second solution. The first and second fluid passages may be configured such that solute running through the first fluid passage is vaporizable by heat absorbed from the second solution running through the second fluid passage, thereby cooling the second solution. The absorber may be coupled to the evaporator and the generator. The absorber may be configured to return the solute to solution by mixing the solute with a solvent of the first solution supplied by the generator, and for returning the first solution to the generator to complete a cycle of the system. | 02-28-2013 |
20130067939 | DEHUMIDIFIER DRYER USING AMBIENT HEAT ENHANCEMENT - An apparatus is configured to receive an incoming air stream from within an enclosure and to exhaust an outgoing air stream into the enclosure, the incoming and outgoing air streams flowing in a flow direction. The apparatus comprises an evaporator, a compressor, a condenser, and a heat exchanger. The heat exchanger has a heat extraction portion and a heat depositing portion, wherein the heat extraction portion is disposed in an air stream outside of the enclosure and wherein the heat depositing portion is disposed downstream of the evaporator with respect to the flow direction. A method includes receiving an incoming air stream from within an enclosure in a dryer apparatus, the apparatus including an evaporator, a compressor, and a condenser. A heat exchanger is operably connected to the dryer apparatus to transfer sensible heat from an air stream outside of the enclosure to a location downstream of the evaporator. | 03-21-2013 |
20130091877 | AIR CONDITIONER AND METHOD OF OPERATING AN AIR CONDITIONER - An air conditioner and a method of operating an air conditioner are provided. The air conditioner may include at least one indoor device having an indoor heat exchanger that evaporates or condenses a refrigerant by heat exchange with indoor air; at least one outdoor device having a variable capacity compression device that sucks in and compresses a refrigerant of a refrigerant intake passage and discharges the refrigerant to a refrigerant discharge passage, a water-refrigerant heat exchanger that condenses or evaporates a refrigerant by heat exchange with heat source water, and an outdoor expansion device installed between the indoor heat exchanger of the at least one indoor device and the water-refrigerant heat exchanger; a heat source water flow path connected to the water-refrigerant heat exchanger; a pump installed on the heat source water flow path; and a variable flow valve installed on the heat source water flow path. An opening degree of the variable flow valve is varied depending on a pressure of at least one of the refrigerant discharge passage or the refrigerant intake passage. | 04-18-2013 |
20130098073 | AIR CONDITIONER AND METHOD OF OPERATING AN AIR CONDITIONER - An air conditioner and a method of operating an air conditioner are provided. The air conditioner may include a heat pump having a water-refrigerant heat exchanger that condenses or evaporates a refrigerant by heat exchange with heat source water; a heat source water flow path connected to the water-refrigerant heat exchanger; a pump installed on the heat source water flow path; a variable flow valve installed on the heat source water flow path; and a variable flow valve controller that controls an opening degree of the variable flow valve. The variable flow valve controller may include a heat source water minimum flow manipulator that manipulates a minimum flow rate of the heat source water and regulates the opening degree of the variable flow valve according to the manipulation of the heat source water minimum flow manipulator. Accordingly, a user or installation personnel may selectively regulate power consumption and efficiency as desired. | 04-25-2013 |
20130104574 | Hybrid Space And Hot Water Heating Heat Pump | 05-02-2013 |
20130104575 | USE OF COMPOSITIONS COMPRISING 1,1,1,2,3-PENTAFLUOROPROPANE AND OPTIONALLY Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE IN HIGH TEMPERATURE HEAT PUMPS | 05-02-2013 |
20130111932 | BATTERY WARM-UP APPARATUS AND METHOD THEREOF - A the battery warm-up apparatus includes an electric motor, a battery, an electric generator for charging the battery, an engine for driving the electric generator, a refrigeration circuit arranged to pass through inside the engine in a manner that a temperature medium flows through an inside thereof, a heat exchanger, a battery-heating channel branched from the refrigeration circuit, arranged to pass through the battery and connected to the refrigeration circuit again, a first switching valve arranged at a first portion of the refrigeration circuit, the battery-heating channel being branched from the refrigeration circuit at the first portion, the first switching valve connecting and disconnecting the battery-heating channel relative to the refrigeration circuit, a battery temperature sensor, and a controller for operating the first switching valve on the basis of temperature of the battery and for allowing the temperature medium to flow through the battery-heating channel. | 05-09-2013 |
20130125566 | VEHICLE WITH A COOLING SYSTEM FOR COOLING AND METHOD FOR COOLING IN A VEHICLE - A cooling system of a vehicle with a fuel cell includes an absorbent circuit with an absorber tank, a regenerator tank, an absorbent pump and a first pressure reduction means and a coolant circuit with a condenser connected to a steam outlet of the regenerator tank, a second pressure reduction means and an evaporator arranged between a steam inlet of the absorber tank and the second pressure reduction means. The regenerator tank is designed to desorb the coolant in solution in the absorbent by absorbing a first quantity of heat and to introduce it in a vaporous state into the condenser. The evaporator is designed to evaporate the coolant while absorbing a second quantity of heat and to introduce it in the vaporous state into the absorber tank. At least one of the first and of the second quantity of heat could be provided by the fuel cell. | 05-23-2013 |
20130133345 | AIR CONDITIONER AND METHOD OF OPERATING AN AIR CONDITIONER - An air conditioner and a method of operating an air conditioner are provided. The air conditioner may include at least one indoor device, each having an indoor heat exchanger installed therein; at least one outdoor device connected to the at least one indoor device by a refrigerant flow path, and each having a water-refrigerant heat exchanger that provides heat exchange between a refrigerant and heat source water and an outdoor device controller installed therein; a heat source water flow path connected to each water-refrigerant heat exchanger; a pump installed on the heat source water flow path; a variable flow valve installed on the heat source water flow path; a central controller that controls the at least one outdoor device; and a variable flow valve control board that regulates an opening degree of the variable flow valve and a flow rate of heat source water. The variable flow valve control board may be connected to the outdoor device controller via a first communication line, connected to the central controller via a second communication line having a different communication method from that of the first communication line, and perform protocol conversion between the central controller and the outdoor device controller. | 05-30-2013 |
20130152611 | AIR-CONDITIONING SYSTEM FOR A VEHICLE AND METHOD FOR AIR-CONDITIONING A VEHICLE - An air-conditioning system for a vehicle, comprising a refrigerant circuit through which a refrigerant can flow and which is configured as a heat pump circuit and as a cooling system circuit, and associated with these, a compressor, at least one external heat exchanger, at least one internal heat exchanger that is associated with an internal heating condenser, whereby a device is provided for generating an air stream that can be thermally coupled to the internal heat exchanger and to the internal heating condenser, as well as a metering device that can meter the flow of at least a partial stream of the thermally coupled air stream through the internal heating condenser is provided, wherein
| 06-20-2013 |
20130167564 | AIR CONDITIONING APPARATUS FOR EFFICIENT SUPPLY AIR TEMPERATURE CONTROL - A system and method of controlling a multiple condenser air conditioning system that provides for efficient regulation of air temperature. The refrigeration system includes one or more valves whose operation is preferably controlled by programmable control logic to regulate flow through the refrigerant condenser(s) and sequentially control compressor discharge pressure and temperature in response to demands for heating or reheating of a supply air flow. | 07-04-2013 |
20130199217 | AIR CONDITIONER FOR VEHICLE - An air conditioner for a vehicle includes: a compressor ( | 08-08-2013 |
20130219930 | REFRIGERATOR WITH CONVERTIBLE CHAMBER AND OPERATION METHOD THEREOF - A method for controlling temperature of a refrigerator including a main body having at least first and second adiabatic spaces; a refrigerant compression cycle device including an evaporator, a compressor, a condenser, and an expander installed within the main body; and a heating unit transferring heat of a refrigerant discharged from the condenser to air in the second adiabatic space, includes: measuring an internal temperature of the second adiabatic space; bypassing the refrigerant discharged from the condenser to the second adiabatic space when the measured internal temperature of the second adiabatic space is lower than a lower limit value of a pre-set temperature range; measuring ambient temperature of the condenser; and controlling an operation of a condenser cooling fan according to the ambient temperature of the condenser to maintain the refrigerant that passes through the interior of the condenser at a certain temperature or higher. | 08-29-2013 |
20130269372 | Waste oil based water production system - This invention includes embodiments which disclose a system for the disposal and or combustion of waste oil for use in a chiller operatively connected to one or more evaporators, the system providing for the collection, storage and/or treatment and dispensation of potable or drinkable water. | 10-17-2013 |
20130269373 | HYBRID ABSORPTION-COMPRESSION CHILLER - The present invention envisages a hybrid absorption-compression chiller comprising: a vapor-compression system providing refrigeration effect in a primary evaporator ( | 10-17-2013 |
20130283829 | METHOD FOR PROVIDING A REFRIGERANT MEDIUM IN A SECONDARY CYCLE - A method for providing a refrigerant medium having a controlled flow temperature in a secondary cycle ( | 10-31-2013 |
20130305747 | HOUSEHOLD APPLIANCE - The present invention relates to a household appliance and a method for using a heat pump in a household appliance, and more particularly to a household appliance for washing and drying goods. The household appliance comprises a processing chamber ( | 11-21-2013 |
20130312435 | Power and Refrigeration Cascade System - The present invention relates generally to combined power and cooling generation systems, and, more particularly, to a combined power and refrigeration cascade system (“PARCS”) that includes an electric power system (PS) that produces both electric power and medium-to-high-grade waste heat that can be used for providing the cooling and power supply needs of data centers and the like. | 11-28-2013 |
20140000298 | METHOD AND SYSTEM FOR PROCESSING HOT HUMID AIR RESULTING FROM AN INDUSTRIAL PROCESS, PRIOR TO EXPELLING IT INTO THE OUTSIDE AIR, TO RECOVER WATER AND REMOVE THE PLUME | 01-02-2014 |
20140033743 | Combined Heat and Power Heat Pump - A method of operating a heating, ventilation, and/or air conditioning (HVAC) system includes operating a device to produce at least one of electricity and rejected heat and at least one of (1) powering a component of the HVAC system using the electricity produced by the electricity generating device and (2) heating the refrigerant of the HVAC system using at least a portion of the rejected heat. | 02-06-2014 |
20140041400 | HEAT PUMP SYSTEM FOR A LAUNDRY DRYER AND A METHOD FOR OPERATING A HEAT PUMP LAUNDRY DRYER - A laundry dryer is provided with a heat pump system including an air stream circuit ( | 02-13-2014 |
20140047852 | AIR CONDITIONER AND CONTROL METHOD THEREOF - An air conditioner that improves efficiency of an inverter compressor by injecting an intermediate pressure refrigerant to the inverter compressor during heating or cooling and a control method thereof are provided. | 02-20-2014 |
20140053579 | MOTOR VEHICLE CLIMATE CONTROL SYSTEM - A vehicle climate control system operable in a winter mode and a summer mode includes an engine-exhaust-driven hot heat transfer fluid (HTF) circuit coupled with a heater core during the winter mode to provide passenger cabin heating, and thermal energy stored in a standalone hot phase change material (PCM) battery in the hot HTF circuit may provide surge heating at or prior to engine start. The hot HTF circuit and a cold HTF circuit including an HTF cooler drive two adsorbers in the summer mode, thereby providing passenger cabin cooling in conjunction with a refrigerant circuit which includes a condenser, evaporator, expansion valve, and standalone cold PCM battery. Thermal energy stored in the standalone cold PCM battery may provide surge cooling at or prior to engine start. | 02-27-2014 |
20140060092 | METHOD OF OPERATING A HEAT PUMP DRYER AND HEAT PUMP DRYER - Method of operating a heat pump dryer, the heat pump tumble dryer including a process air circuit and a heat pump unit having a refrigerant evaporator for cooling process air, a primary refrigerant condenser for heating process air, an auxiliary refrigerant evaporator arranged outside the process air circuit and connected between the primary refrigerant evaporator and a compressor of the heat pump unit, and at least one auxiliary fan adapted to impinge an air stream at the auxiliary heat exchanger. The at least one auxiliary fan is activated and deactivated by a control unit according to at least one of a temperature of the refrigerant and/or a pressure of the refrigerant, both preferably measured near or at a refrigerant outlet of the primary evaporator, a temperature of refrigerant near or at an refrigerant outlet or inlet of the auxiliary refrigerant evaporator, a temperature of the air near or at the auxiliary refrigerant evaporator, a temperature difference between refrigerant and air near or at the auxiliary refrigerant evaporator and, a temperature of the process air and/or humidity of the process air, both preferably near or at a process air inlet of a drying chamber of the heat pump tumble dryer. | 03-06-2014 |
20140060093 | SOLAR-POWERED COOLING SYSTEM - A solar-powered adsorption-desorption refrigeration and air conditioning system that uses nanostructural materials such as aerogels, zeolites, and sol gels as the adsorptive media. Refrigerant molecules are adsorbed on the high surface area of the nanostructural material while the material is at a relatively low temperature, perhaps at night. During daylight hours, when the nanostructural materials is heated by the sun, the refrigerant are thermally desorbed from the surface of the aerogel, thereby creating a pressurized gas phase in the vessel that contains the aerogel. This solar-driven pressurization forces the heated gaseous refrigerant through a condenser, followed by an expansion valve. In the condenser, heat is removed from the refrigerant, first by circulating air or water. Eventually, the cooled gaseous refrigerant expands isenthalpically through a throttle valve into an evaporator, in a fashion similar to that in more conventional vapor recompression systems. | 03-06-2014 |
20140075970 | Integrated Power, Cooling, and Heating Device and Method Thereof - A heating, cooling, and power device includes a shaft and an expander coupled to the shaft to rotate the shaft. A first conduit is coupled to the expander and configured to transport a working fluid. A heater is coupled through the first conduit to the expander. A heat pump is coupled to the shaft. An electric machine is coupled to the shaft to produce electricity or mechanical shaft power. A recuperator includes a second conduit coupled between the expander and recuperator. The heat pump includes a first heat exchanger including a second conduit coupled between the expander and the first heat exchanger. An expansion device includes a third conduit coupled between the first heat exchanger and the expansion device. A second heat exchanger includes a fourth conduit coupled between the expansion device and second heat exchanger. A compressor is coupled to the shaft. | 03-20-2014 |
20140083119 | COMPOSITIONS OF 2,4,4,4-TETRAFLUOROBUT-1-ENE AND CIS-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE - A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene. | 03-27-2014 |
20140090405 | Carbon Dioxide Refrigeration Cycle - A refrigeration cycle is operated in conjunction with various thermodynamic cycle working fluid circuits to cool a target fluid that may be used in a separate system or duty. In one embodiment, the refrigeration cycle includes an ejector that extracts a motive fluid from the working fluid cycles in order to entrain a suction fluid that is also extracted from the working fluid circuits. Expanding the suction fluid reduces the pressure and temperature of the suction fluid for cooling the target fluid in an evaporator, which evaporates the suction fluid before being entrained into the ejector by the motive fluid. A mixed fluid is discharged from the ejector and injected into the working fluid circuits upstream from a condenser that cools the mixed fluid and the working fluid circulating throughout the working fluid circuits. | 04-03-2014 |
20140102119 | ADSORPTION CELL FOR AN ADSORPTION COMPRESSOR AND METHOD OF OPERATION THEREOF - The invention is directed to an adsorption cell suitable for a thermal wave operated adsorption compressor comprising:
| 04-17-2014 |
20140116072 | HEAT PUMP APPARATUS - A heat pump apparatus is provided. The heat pump raises the water temperature during a hot-water supply without using a separate heat source such as a heater. The heat pump apparatus includes an outdoor unit including a first compressor, a first heat exchanger, and a first expansion valve. The heat pump apparatus includes an indoor unit including a second heat exchanger and a second expansion valve, a hydro unit including a second compressor, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a third expansion valve, a fourth expansion valve, and a fifth expansion valve. The heat pump apparatus includes a refrigerant flow path switching unit to switch among flow paths, and a water flow path switching unit to switch between flow paths of the water. | 05-01-2014 |
20140123689 | INTEGRATED HEAT PUMP AND WATER HEATING CIRCUIT - An integrated heat pump and water heating circuit for space heating and cooling and heating domestic water. The circuit includes a first heat exchanger for the domestic water, a second heat exchanger for the source (heat source/sink) with a first dedicated expansion valve, and a third exchanger for the space with a second dedicated expansion valve. The circuit has four modes of operation. In the first mode, the space is cooled and heat is rejected to the source. In the second mode, the space is heated while heat is absorbed from the source. In the third mode, the circuit absorbs heat from the source and heats the water supply. In a fourth mode, the water supply is heated and the space is cooled simultaneously. In each mode, one heat exchanger is inactive, and the charge from the inactive heat exchanger is reclaimed to the suction side of the compressor. | 05-08-2014 |
20140150475 | Thermal Energy System and Method of Operation - A thermal energy system comprising a first thermal system in use having a cooling demand, and a heat sink connection system coupled to the first thermal system, the heat sink connection system being adapted to provide selective connection to a plurality of heat sinks for cooling the first thermal system, the heat sink connection system comprising a first heat exchanger system adapted to be coupled to a first remote heat sink containing a working fluid and a second heat exchanger system adapted to be coupled to ambient air as a second heat sink, a fluid loop interconnecting the first thermal system, the first heat exchanger system and the second heat exchanger system, at least one mechanism for selectively altering the order of the first heat exchanger system and the second heat exchanger system in relation to a fluid flow direction around the fluid loop, and a controller for actuating the at least one mechanism. An alternative embodiment has a heating demand and uses heat sources. | 06-05-2014 |
20140150476 | Refrigerant Circuit And Method Of Controlling Such A Circuit - The invention relates to a refrigerant circuit ( | 06-05-2014 |
20140165626 | USE OF R-1233 IN LIQUID CHILLERS - This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of R-123 and R-11. | 06-19-2014 |
20140165627 | METHOD FOR CHILLING A BUILDING - A method for chilling a building includes the steps of: heating a working solution contained in a solar panel using solar radiation, separating the heated working solution in vapor and a concentrated working solution, condensing the vapor to liquid refrigerant, evaporating the liquid refrigerant, (i) in a building to be chilled or (ii) outside a building to be chilled, wherein the cooling obtained by evaporation is transferred to a cooling liquid outside the building and transported to the building to be chilled for delivery of the cooling, absorbing in an absorber the vapor in the concentrated working solution, and returning the working solution to the first step. | 06-19-2014 |
20140196481 | CARBON DIOXIDE REMOVAL SYSTEM USING ABSORPTION REFRIGERATION - A carbon dioxide removal system includes a chilled ammonia carbon capture system; an absorber refrigeration system in fluid communication with the chilled ammonia system; and a heat recovery steam generator (HSRG) in fluid communication with the chilled ammonia system and the absorber refrigeration system. | 07-17-2014 |
20140196482 | HEAT PUMP SYSTEM AND METHOD OF COOLING AND/OR HEATING BY MEANS OF SAID SYSTEM - A heat pump system ( | 07-17-2014 |
20140196483 | HEAT PUMP APPARATUS AND METHOD OF CONTROLLING HEAT PUMP APPARATUS - In a heat pump apparatus of an indirect type including a primary circuit on a heat source side and a secondary circuit on a load side, a refrigerant in the primary circuit is prevented from leaking through the secondary circuit. | 07-17-2014 |
20140202184 | METHOD FOR THE CONVERSION OF ENERGY AND ENERGY CONVERTER - Method and air conditioning system for the conversion of energy, particularly solar energy; the method featuring the steps of heating a first end (E | 07-24-2014 |
20140208782 | SYSTEM AND METHOD FOR WASTE HEAT UTILIZATION IN CARBON DIOXIDE CAPTURE SYSTEMS IN POWER PLANTS - Disclosed herein is a system comprising an absorber; the absorber permitting contact between a flue gas stream that comprises carbon dioxide and a solvent to produce a carbon dioxide rich solvent; a regenerator disposed downstream of the absorber; the regenerator being operative to dissociate the carbon dioxide from the solvent; and a compression system disposed downstream of the regenerator comprising a plurality of compression stages; where each compression stage comprises a compressor that is operative to pressurize the carbon dioxide that is dissociated from the solvent; and where at least some of the compression stages comprise a knockout tank disposed upstream of the compressor and an intercooling heat exchanger disposed downstream of the compressor; where the knockout tank is operative to remove liquid present in the carbon dioxide and where the intercooling heat exchanger is operative to remove heat generated during the pressurizing of the carbon. | 07-31-2014 |
20140216077 | APPARATUSES AND METHODS FOR USE OF A PUMP WITH A HEATABLE PUMP CHAMBER IN A HEAT-PUMP APPARATUS AND FOR OPERATING THE HEAT-PUMP APPARATUS - A heat-pump apparatus for heating purposes has a collector circuit for a heat source with a collector pump for a collector fluid, also has a refrigerant circuit with an evaporator and a condenser for a refrigerant in the refrigerant circuit and with a compressor and a pressure-relief valve, and additionally has a heating circuit with a heating pump for a heating fluid, with heating means for heating purposes. At least the collector pump and/or the heating pump are/is designed in the form of a pump with a heatable pump chamber for heating the fluid delivered by the pump. | 08-07-2014 |
20140238054 | MULTIPLE EVAPORATOR CONTROL USING PWM VALVE/COMPRESSOR - A refrigeration system including a condenser; a (single) linear compressor that is activated and deactivated by a pulse width modulation switching device; a pulse width modulation refrigerant flow switch; at least two evaporators operably connected in parallel with one another with at least one evaporator associated with the refrigerator compartment that operates at a first refrigerant fluid pressure and with at least one other evaporator associated with the freezer compartment that operates at a second refrigerant fluid pressure; and a plurality of refrigerant fluid conduits operably connecting the condenser, the linear compressor and the evaporators into a refrigerant fluid flow circuit and such that the evaporators are capable of running simultaneously at different pressure levels and refrigerant flows from the evaporators, to the pulse width modulation refrigerant flow switch and through the pulse width modulation refrigerant flow switch. | 08-28-2014 |
20140238055 | Humidity Control For Air Conditioning System - An air conditioning system includes a cooling unit having a cooling coil and a fan, the cooling unit for cooling recirculated air from a return duct; a bypass duct providing an air pathway bypassing the cooling unit; a phase change material (PCM) module including a PCM and a PCM fan for drawing makeup air over the PCM; and a supply duct fluidly coupled to the cooling unit and the PCM module, the supply duct for supplying conditioned air to a space to be conditioned. | 08-28-2014 |
20140260356 | REFRIGERATOR COOLING SYSTEM HAVING A SECONDARY COOLING LOOP - A refrigerator cooling system and method provides cooling to one or more features of a refrigerator by employing a secondary cooling loop that utilizes the excess cooling capacity of an evaporator to selectively provide supplemental cooling to the features when a thermal demand arises. | 09-18-2014 |
20140260357 | ENERGY EXCHANGE SYSTEM AND METHOD - A system and method for heating water are provided. The system includes a first subcooler for receiving a first water flow, a second subcooler for receiving a second water flow, a first condenser in fluid communication with the first subcooler and the second subcooler for receiving water from both subcoolers, and a second condenser in fluid communication with the first condenser. The method involves receiving a flow of water, and transferring heat to the water using the system. | 09-18-2014 |
20140260358 | APPARATUS AND METHODS FOR PRE-HEATING WATER WITH AIR CONDITIONING UNIT OR HEAT PUMP - Water heater apparatus includes a tank for storing water; a heat exchanger associated with the tank and being operative to receive refrigerant and transfer heat therefrom to the tank, the heat exchanger representatively being a heat conductive tube externally wrapped around the tank in heat conductive contact therewith; air conditioning apparatus operative to utilize refrigerant flowing through a refrigerant circuit portion of the air conditioning apparatus, the refrigerant circuit portion being in fluid communication with the heat exchanger; and a control system operative to selectively cause a portion of the flowing refrigerant to pass through the heat exchanger, or cause essentially the entire flow of the refrigerant to bypass the heat exchanger. | 09-18-2014 |
20140260359 | ADSORPTION HEAT PUMP AND METHOD OF DRIVING THE SAME - An adsorption heat pump includes: an evaporator configured to generate coolant vapor; a first adsorber and a second adsorber each containing an adsorbent to adsorb the coolant vapor generated in the evaporator; a condenser configured to condense the coolant vapor generated in any of the first adsorber and the second adsorber; and a control unit. The control unit feeds the condenser with cooling water for condensation of the coolant vapor and feeds the condenser with warm water for evaporation of the coolant at predetermined timing. | 09-18-2014 |
20140298830 | AIR CONDITIONER FOR ELECTRIC VEHICLE - An air conditioner of an electric vehicle according to the present invention includes a compressor for compressing refrigerant, an indoor heat exchanger for performing heat exchange between refrigerant introduced into the indoor exchanger after emerging from the compressor and air, an outdoor heat exchanger for performing heat exchange between refrigerant introduced into the outdoor heat exchanger and outdoor air, a first expansion device arranged between the indoor heat exchanger and the outdoor heat exchanger, to expand refrigerant introduced into the first expansion device, an evaporator for evaporating refrigerant introduced into the evaporator, to dehumidify indoor air, a second expansion device arranged between the outdoor heat exchanger and the evaporator, to expand refrigerant introduced into the second expansion device, a first bypass line connected to guide refrigerant emerging from the indoor heat exchanger to flow toward the evaporator after bypassing the first expansion device and the outdoor heat exchanger, and a second bypass line connected to guide refrigerant flowing toward the evaporator to flow toward the compressor after bypassing the evaporator. During a heating operation, the first bypass line is selectively used in accordance with an outdoor temperature, and the second bypass line is selectively used in accordance with an indoor humidity. | 10-09-2014 |
20140305144 | AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME - An air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a converting unit, an accumulator, and injection module, a supercooling valve, and an injection valve. The injection module expands and vaporizes a portion of refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger in the heating operation. The supercooling valve is disposed between the injection module and the accumulator and is opened to direct the portion of the refrigerant vaporized in the injection module to the accumulator in the heating operation and then closed after a predetermined time passes. The injection valve is disposed between the injection module and the compressor and is opened when the supercooling valve is closed in the heating operation, thereby injecting the portion of the refrigerant vaporized in the injection module to the compressor. | 10-16-2014 |
20140326004 | METHOD FOR MANAGING A REFRIGERANT CHARGE IN A MULTI-PURPOSE HVAC SYSTEM - A method for managing a refrigerant charge in a system for heating water and conditioning an interior space by removing power from an indoor fan for a first duration of time prior to switching at least one valve to configure a second refrigerant circuit for satisfying a water heating demand. A method for managing a refrigerant charge in a system for heating water and conditioning an interior space by removing power from a water pump for a second duration of time prior to switching at least one valve to reconfigure a first refrigerant circuit to satisfy an interior space heating demand. | 11-06-2014 |
20140345305 | AIRCRAFT COOLING SYSTEM AND METHOD FOR OPERATING AN AIRCRAFT COOLING SYSTEM - An aircraft cooling system comprising a refrigerating device and a heat exchanger thermally coupled to the refrigerating device. A ram air duct of the aircraft cooling system is adapted to supply cooling air to the heat exchanger, in order to remove waste heat generated in the operation of the refrigerating device from the heat exchanger to the aircraft surroundings. A connecting element comprises a first end connected to the ram air duct and a second end connectable to a device for providing conditioned air and is adapted to supply conditioned air to the ram air duct, at least in certain operating phases of the aircraft cooling system. | 11-27-2014 |
20150013353 | COMPRESSOR-HEAT EXCHANGER UNIT FOR A HEATING-COOLING MODULE FOR A MOTOR VEHICLE - The invention relates to a compressor-heat exchanger unit for a heating-cooling module for a motor vehicle, in which at least one fluid serving as a coolant flows, comprising a compressor device for compressing the first fluid, at least one heat exchanger device that has at least one first circuit for the first fluid to flow through and a second circuit for a second fluid to flow through, this heat exchanger unit being arranged in the fluid stream after the compressor device, characterised in that the first fluid is guided at least partially in flow channels of the first circuit that at least partially enclose the compressor device. | 01-15-2015 |
20150027143 | CABIN EXHAUST AIR HEAT RECOVERY SYSTEM INCLUDING A HEAT PUMP SYSTEM HAVING A NON-FREEZING EVAPORATOR - A number of variations of the invention may include a product including a cabin exhaust air heat recovery system including a heat pump system having a non-freezing evaporator. | 01-29-2015 |
20150033771 | MODULAR REFRIGERATION AND HEAT RECLAMATION CHILLER - The present technology provides a modular refrigeration and heat reclamation chiller system comprising an evaporator configured to vaporize a refrigerant to cool the refrigerant, a compressor coupled to the evaporator and configured to compress the refrigerant, a condenser coupled to the compressor and configured to condense the refrigerant compressed by the compressor, a sub-cooler coupled to the condenser and configured to receive the refrigerant from the condenser so as to selectively extract heat from the refrigerant and to transfer the refrigerant to the evaporator, and an expansion valve coupled to both the sub-cooler and the evaporator. | 02-05-2015 |
20150033772 | APPARATUS AND METHOD FOR COOLING ELECTRIC COMPONENTS - An apparatus is disclosed which includes a generator receiving a heat load from first electric components, an evaporator for receiving a heat load from second electric components, a tight enclosure, and an absorber-condenser arranged outside of the tight enclosure. For efficient cooling of the apparatus, one or more of the generator, evaporator and absorber-condenser is entirely or partly manufactured of aluminum. The inert and refrigerant can be selected such that R134a is used as the inert and butane as the refrigerant fluid, or R32 is used as the inert and cyclopropane is used as the refrigerant, and the absorber is selected to include an alkyl acetamide, a carbonate ester or a glycol ester. | 02-05-2015 |
20150047374 | METHODS AND SYSTEMS FOR CONDENSATION CONTROL - Methods and systems are provided for reducing condensate accumulation at a charge air cooler (CAC) during cold ambient conditions. During defrosting conditions, an air conditioner may be operated to dehumidify a cabin space while heat is rejected into a cooling circuit. Warm coolant may be directed to a CAC bypassing a radiator to expedite CAC heating. | 02-19-2015 |
20150052913 | Climate Control System - A climate control system having a coolant subsystem, a heat pump subsystem, and an intermediate heat exchanger. The intermediate heat exchanger may transfer thermal energy from the heat pump subsystem to the coolant to increase the temperature of the coolant when the climate control system is in a heating mode. | 02-26-2015 |
20150052914 | System and Method for Using an Electronic Expansion Valve to Control a Discharge Pressure in a Multi-Purpose HVAC System - A method for using an electronic expansion device in a system for heating water and conditioning an interior space by operating a first controller to monitor the operating discharge pressure from the compressor; and operating the first controller to produce a signal designating expansion of an orifice within the electronic expansion valve when the operating discharge pressure is greater than or equal to a predetermined pressure value. | 02-26-2015 |
20150059368 | UTILIZATION OF WASTE HEAT USING FIBER SORBENT SYSTEM - A method for creating work by adsorption end desorption of a working fluid on an fiber sorption system which has a plurality of tubular hollow fibers within a vessel which is connected to a work device. Each fiber is in the form of a tubular, elongated body composed of a sorbent material capable of adsorbing a working fluid such as carbon dioxide. The fibers have an inner surface adjacent the hollow interior and an outer surface, one of which has a coating layer which is impermeable to both a working fluid and thermal fluid. The system is operated by passing a thermal cooling fluid in contact with the fibers to cool the fibers and passing the working fluid over the fibers in contact with the surface of the cooled fibers which does not have the coating layer so that the working fluid is adsorbed on the fibers, the adsorbed working fluid is then desorbed from the fibers by passing a thermal heating fluid in contact with the fibers to heat the fibers; the pressurized, desorbed working fluid is then passed to a work device connected to the vessel. | 03-05-2015 |
20150068226 | APPARATUS AND METHOD FOR CONTROLLING INDOOR AIRFLOW FOR HEAT PUMPS - An apparatus and method for controlling the heating of an airflow. According to certain embodiments, the temperature of an outdoor heat exchanger and the speed of a compressor are used to determine a blower speed for a variable speed indoor air blower. The selected blower speed may facilitate a flow of air across a second, indoor heat exchanger at an indoor volumetric flow rate that heats the airflow to a leaving air temperature. The leaving air temperature may at least seek to attain the temperature of a variable target leaving air temperature that is adjusted based on changes in outdoor ambient temperatures. Additionally, according to certain embodiments, the blower speed may be based on an indoor volumetric airflow rate that is determined, at least in part, on a determined system heating capacity and a temperature at the outdoor heat exchanger. | 03-12-2015 |
20150068227 | COMPOSITIONS COMPRISING FLUOROOLEFINS AND USES THEREOF - The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential. | 03-12-2015 |
20150068228 | HEAT PUMP AND METHOD FOR PUMPING HEAT IN A FREE COOLING MODE - A heat pump includes an evaporator with an evaporator inlet and an evaporator outlet; a compressor for compressing operating liquid evaporated in the evaporator; and a condenser for condensing evaporated operating liquid compressed in the compressor, wherein the condenser includes a condenser inlet and a condenser outlet, wherein the evaporator inlet is connected to a return from a region to be heated, and wherein the condenser inlet is connected to a return from a region to be cooled. | 03-12-2015 |
20150107278 | Device And Method For Icing Prevention Regulation For Heat Pump Evaporators - The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator ( | 04-23-2015 |
20150128622 | EXHAUST GAS WATER EXTRACTION SYSTEM - An exhaust gas water extraction system includes an evaporator component in a diffusion absorption refrigeration ('DAR″) unit. The system also includes an exhaust gas input duct comprising an input opening to receive exhaust gas from an exhaust gas source. The exhaust gas input duct operates as a heat source to power the DAR. An evaporator heat exchanger is connected to receive the exhaust gas from the exhaust gas input duct. The evaporator heat exchanger is disposed to generate a heat exchange between the evaporator component and the exhaust gas that cools the exhaust gas to below the dew point. A water collection container receives water condensing from the exhaust gas during the heat exchange with the evaporator component. | 05-14-2015 |
20150135740 | SYSTEM AND METHOD FOR STORING THERMAL ENERGY AS AUXILIARY POWER IN A VEHICLE - There is provided a controller for a heat capture and storage system configured to capture and store energy from heat expelled in engine exhaust. The controller includes a plurality of inputs, a plurality of outputs, and at least one processor coupled to a memory for storing within the memory instructions executable by the at least one processor. The controller is configured by execution of the instructions stored in the memory to: receive signals at one or more of the plurality of inputs, the signals representing at least one operating parameter of the heat capture and storage system; and based on at least one operating parameter, generate signals at one or more of the plurality of outputs for controlling at least one component of the heat capture and storage system to capture and store the energy from the heat expelled in the engine exhaust. | 05-21-2015 |
20150308034 | Heat Pump Laundry Treatment Apparatus and Method of Operating a Heat Pump Laundry Treatment Apparatus - The invention relates to a heat pump laundry treatment apparatus, in particular a heat pump laundry dryer or a heat pump washing machine having drying function, and to a method of operating such a heat pump laundry treatment apparatus. The laundry treatment apparatus comprises a control unit ( | 10-29-2015 |
20150313356 | METHOD AND APPARATUS FOR COOLING AN AIRLINE GALLEY CART USING A SKIN HEAT EXCHANGER - A system for cooling a thermally insulated galley cart in an aircraft incorporates a skin heat exchanger configured to transfer heat to an aircraft skin. A cooling system is in communication with the skin heat exchanger and is configured to be removably coupled with a thermally insulated galley cart. | 11-05-2015 |
20150322618 | Method of Operating a Heat Pump Laundry Dryer and Heat Pump Laundry Dryer or Heat Pump Washing Machine Having Drying Function - The invention relates to a method of operating a heat pump laundry dryer or a heat pump washing machine having drying function and to such a laundry dryer or washing machine, wherein the laundry dryer or washing machine comprises: a control unit ( | 11-12-2015 |
20150354849 | HEAT SOURCE SYSTEM, AND DEVICE AND METHOD FOR CONTROLLING COOLING WATER SUPPLY DEVICE - In order to achieve a reduction in energy consumption in a cooling water supply device without using a database, an equipment control device ( | 12-10-2015 |
20150377496 | Heat Pump Water Heater - An energy efficient heat pump system capable of operating in extreme low and high temperature environments. The heat pump system includes an evaporator, a heater operatively associated with the evaporator, compressor and condenser. In an exemplary embodiment, the heat pump system may further include a plasma pulse-spark system to facilitate removal of scale deposits. The heater heats an environmental medium prior to the environmental medium exchanging energy with a refrigerant located in an evaporator coil of the evaporator in order to maintain a predetermined minimum temperature differential between the environmental medium when it contacts the evaporator coil and the refrigerant when located in the evaporator coil. The system allows efficient operation at low temperatures. | 12-31-2015 |
20160003506 | SYSTEMS AND METHODS FOR RECOVERING ENERGY FROM WASTEWATER - Integrated systems and methods for onsite wastewater treatment in which a portion of onsite energy demands may be driven by energy harvested from the wastewater. Thermal energy of wastewater may be transferred from an onsite wastewater treatment system to an onsite heat pump to recover thermal energy, at least a portion of which may then be delivered to an onsite energy demand. | 01-07-2016 |
20160033145 | Room-to-Room Heat Pump - A system, method, and device for transferring thermal energy between areas of a structure so as to maintain occupant comfort while minimizing the difference between indoor and outdoor temperatures, thereby minimizing thermal losses from the structure. The device operates effectively in the heating season and cooling season, when outdoor temperatures are cold and hot, respectively. | 02-04-2016 |
20160033166 | THERMAL RECOVERY SYSTEM AND METHOD - An apparatus comprises a subcooler, such as a vented tube/plate or tube on tube heat exchanger, and a pre-cooler and/or post-heater, which may be a vented tube/plate or tube on tube heat exchanger. The subcooler and pre-cooler and/or post-heater are connected in fluid communication with each other (in series) and with a refrigerant output and input of a condenser. For example, the refrigerant output goes into the subcooler, and the refrigerant input comes out of the precooler and/or post-heater. A working fluid (e.g. coolant), such as water or glycol or other working fluid, is forced, such as by pumping, first through the subcooler and then through the precooler and/or post-heater. Flow rate of the working fluid through the apparatus may be regulated such that the refrigerant is first subcooled to an incoming fluid's temperature and then to pre-cool the refrigerant to approximately its saturated-vapor state, when the system is operating to provide a refrigeration effect. Heat absorbed by the working fluid using the method may heat a potable hot water system or as a secondary heat source. | 02-04-2016 |
20160047588 | LOW ENERGY REFRIGERATOR HEAT SOURCE - A refrigerator is provided that includes a low energy refrigerator heat source. The refrigerator includes a heat source positioned at a source of latent heat. The heat source harvested heat from the source of latent heat and stores said heat in a fluid within that heat reservoir or heat exchanger. The warmed fluid is then supplied via a fluid pathway to an application requiring a heat output. Thus, the heat reservoir provides heat to the application without use of an energy-consuming device, which reduces the energy consumption of the refrigerator. | 02-18-2016 |
20160178257 | LOW CHARGE PACKAGED REFRIGERATION SYSTEM | 06-23-2016 |
20160185184 | VEHICLE AIR CONDITIONING DEVICE, ELECTRIC COMPRESSOR, AND VEHICLE AIR CONDITIONING METHOD - A refrigerant heating performance is increased while suppressing an increase in weight or cost. A vehicle air-conditioning device ( | 06-30-2016 |
20160252261 | AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME | 09-01-2016 |
20170233083 | THERMAL MANAGEMENT SYSTEMS AND METHODS | 08-17-2017 |
20180022181 | VEHICLE AUXILIARY HVAC SYSTEM USING A COOLANT LOOP FOR COOLING A COMPONENT AND VEHICLE INTERIOR | 01-25-2018 |