Patent application number | Description | Published |
20090301113 | Heat Source Apparatus , Heat Source System, And Method Of Controlling Heat Source Apparatus - A turbo chiller that can run continuously even with a low load, for example, less than 10% load, is provided. In a turbo chiller having a low-load mode for repeatedly controlling stopping and starting of the turbo chiller when a coolant inlet temperature measured by a coolant inlet temperature sensor is equal to or lower than a first temperature forming a temperature difference with respect to the coolant outlet temperature, a stop limit mode for stopping the turbo chiller when the coolant inlet temperature or the coolant outlet temperature is equal to or lower than a second temperature below the first temperature is provided. | 12-10-2009 |
20100031683 | HEAT SOURCE APPARATUS, HEAT SOURCE SYSTEM, AND METHOD FOR OPERATING HEAT SOURCE APPARATUS - A heat source apparatus in which a control device of the heat source apparatus can ascertain a stoppage of an inverter device and in which a stable operating time of the heat source apparatus can be extended is provided. The heat source apparatus includes an electric compressor that is driven by an inverter device and that compresses a refrigerant, the inverter device having a protective function that performs stoppage for device protection on the basis of a predetermined calculation by an inverter control portion, and a control device that controls cold output and/or heat output. The control device includes an inverter-protective-function estimating unit that estimates a calculation result of the protective function of the inverter control portion. | 02-11-2010 |
20100170274 | TURBO CHILLER, HEAT SOURCE SYSTEM, AND METHODS FOR CONTROLLING THEM - There is provided a turbo chiller that can be operated at high efficiency within an adequate chilling capacity range even when the cooling water temperature changes during the operation. The adequate chilling capacity range is obtained by using a flow coefficient and a pressure coefficient at a specific operating point of a turbo compressor as well as a predetermined coefficient to determine an arithmetic expression representing the relationship between a head and a chilling capacity, using a chilling capacity that can lead to a substantially highest coefficient of performance at a single head to obtain the predetermined coefficient as an optimum coefficient, computing an adequate operation coefficient range having a predetermined range and including the optimum coefficient, and substituting the adequate operation coefficient range and a head at the time of operation into the arithmetic expression. | 07-08-2010 |
20100180629 | TURBO CHILLER, HEAT SOURCE SYSTEM, AND METHOD FOR CONTROLLING THE SAME - A turbo chiller that allows for temperature adjustment even when a target heat load is low is provided. A turbo chiller ( | 07-22-2010 |
20100287969 | REFRIGERATOR - A refrigerator is provided in which a refrigerant supplied to an evaporator is precooled to a dryness of nearly zero and is supplied in a single liquid phase to increase the amount of heat exchanged by the evaporator, thereby improving cooling performance or reducing the size of the evaporator. A refrigerator ( | 11-18-2010 |
20110030405 | HEAT SOURCE SYSTEM AND CONTROL METHOD THEREOF - An object is to provide a heat source system capable of realizing energy saving. In a heat source system including: a chilled-water main control heat pump ( | 02-10-2011 |
20110185765 | HEAT PUMP APPARATUS - A heat pump apparatus that is capable of suppressing an increase in the installation area therefor and volume thereof is provided. A heat pump apparatus includes a compressor that compresses refrigerant, a condenser that liquefies the compressed refrigerant, and an evaporator that evaporates the liquefied refrigerant, wherein the condenser and the evaporator are plate-type heat exchangers formed in rectangular cuboid shapes, and the condenser, which is a plate-type heat exchanger, and the evaporator, which is a plate-type heat exchanger, are disposed next each other. | 08-04-2011 |
20110197616 | HEAT PUMP APPARATUS - A heat pump apparatus that can easily prevent noise generated during partial-load operation is provided. The heat pump apparatus includes a centrifugal compressor configured to compress a refrigerant; a condenser configured to condense the compressed refrigerant; an expansion valve configured to adiabatically expand the condensed refrigerant; an evaporator configured to vaporize the adiabatically-expanded refrigerant; a container into which the vaporized refrigerant flows and from which the refrigerant that flowed in flows out to the centrifugal compressor; a sound-insulating member configured to cover the container and prevent sound generated inside the container from leaking outside; a bypass channel configured to guide part of the refrigerant from an area between the centrifugal compressor and the condenser to the container; and a flow control valve configured to control the flow rate of the refrigerant flowing through the bypass channel. | 08-18-2011 |
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 |
20120055184 | CENTRIFUGAL-CHILLER AND METHOD FOR CONTROLLING THE SAME - Provided is a centrifugal-chiller including one variable-speed centrifugal-compressor and one constant-speed centrifugal-compressor and capable of high-efficiency operation. A centrifugal-chiller comprising a variable-speed centrifugal-compressor whose rotational frequency can be varied by an inverter and which compresses a refrigerant; a constant-speed centrifugal-compressor connected in parallel with the variable-speed centrifugal-compressor and operated at a constant rotational speed to compress the refrigerant; and a control unit that controls the operations of the variable-speed centrifugal-compressor and the constant-speed centrifugal-compressor, wherein in the case where a required load factor of the centrifugal-chiller is less than a predetermined value, the control unit selects a variable-speed-compressor priority operating mode in which only the variable-speed centrifugal-compressor is activated, and in the case where the required load factor of the centrifugal-chiller is the predetermined value or greater, the control unit selects a combined-use operating mode in which the variable-speed centrifugal-compressor and the constant-speed centrifugal-compressor are activated. | 03-08-2012 |
Patent application number | Description | Published |
20100028570 | TRANSFER SHEET AND METHOD FOR FORMING THE SAME - A transfer sheet includes a supporting substrate, a photothermal conversion layer disposed on the supporting substrate, and a passive layer disposed on the photothermal conversion layer. | 02-04-2010 |
20100159165 | TRANSFER SUBSTRATE AND METHOD OF MANUFACTURING A DISPLAY APPARATUS - A transfer substrate includes a support substrate for thermal transfer and a transfer layer. The transfer layer is provided on the support substrate, and includes a host material and a luminescent dopant material each having a sublimation temperature. A difference of the sublimation temperatures is set within a predetermined range. | 06-24-2010 |
20120168069 | METHOD FOR FORMING TRANSFER SHEET - A transfer sheet includes a supporting substrate, a photothermal conversion layer disposed on the supporting substrate, and a passive layer disposed on the photothermal conversion layer. | 07-05-2012 |
20120176654 | IMAGE READING DEVICE AND IMAGE FORMING APPARATUS - An image reading device includes a reading unit, a first correcting unit, and a second correcting unit. The reading unit includes multiple read pixel-arrays and converts a signal charge obtained from pixels in each read pixel-array to an electric signal and outputs the electric signal as a read signal of each read pixel-array. The first correcting unit individually delays the read signals of the respective read pixel-arrays output from the reading unit so as to correct misregistration of the read signals. The second correcting unit corrects the misregistration of the read signals of the respective read pixel-arrays corrected by the first correcting unit by performing a two-point interpolation process so that a correction amount for the read signal of one specific read pixel-array among the multiple read pixel-arrays is not smaller than a correction amount for the read signal or signals of the remaining read pixel-array or pixel-arrays. | 07-12-2012 |
20130222855 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, NON-TRANSITORY COMPUTER READABLE MEDIUM, AND IMAGE PROCESSING METHOD - Provided is an image processing device including an image target separating unit that separates a read printed document into image targets, a page aggregation state determining unit that determines a page aggregation state of the read printed document based on a layout of the image targets separated by the image target separating unit, a printing direction determining unit that determines a printing direction of each of pages determined by the page aggregation state determining unit based on a features of each of the image targets separated by the image target separating unit, and a document format converting unit that converts a document format of the read printed document based on the results of the determination by the page aggregation state determining unit and the printing direction determining unit. | 08-29-2013 |
20140362389 | IMAGE PROCESSING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM - Provided is an image processing apparatus including a ground color detecting unit that detects ground color information indicating a ground color from input first image data, a storage control unit that causes a storage unit to store a history of the ground color information detected by the ground color detecting unit, a setting unit that sets a first threshold value that is a reference of the ground color on the basis of a representative value of first ground color information indicating a first ground color included in the history stored in the storage unit, and a ground color removing unit that performs a ground color removal process for input second image data on the basis of the first threshold value set by the setting unit. | 12-11-2014 |
Patent application number | Description | Published |
20090197187 | HOLOGRAM FABRICATION PROCESS AND FABRICATED HOLOGRAM - The invention provides a hologram in which a visually unidentifiable microtext or other micropattern of the order of 10 μm is recorded, and a process for the fabrication of the same. A volume hologram recording material | 08-06-2009 |
20110120162 | PERFORMANCE EVALUATION DEVICE FOR VARIABLE-SPEED CENTRIFUGAL CHILLER - An object is to sequentially calculate planned COPs. Provided is a performance evaluation device for a variable-speed centrifugal chiller that includes a data acquisition unit that acquires operating data of the variable-speed centrifugal chiller as input data; a storage unit that stores a first arithmetic equation derived on the basis of mechanical characteristics of the chiller and used for calculating a relative load factor that relatively expresses a relationship between a current load factor at a current coolant inlet temperature and a predetermined load factor at a predetermined coolant inlet temperature set as a reference operating point, a second arithmetic equation that expresses a relationship between the relative load factor and a correction coefficient, and a third arithmetic equation used for calculating a planned COP by using the correction coefficient to correct a COP calculation equation derived from a reverse Carnot cycle; and an arithmetic unit that calculates the planned COP under current operating conditions by using the operating data acquired by the data acquisition unit in the first, second, and third arithmetic equations stored in the storage unit. | 05-26-2011 |
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 |
20120009508 | LASER MARKING HOLOGRAM HAVING A VOLUME HOLOGRAM WITH INTERFERENCE FRINGES USING SELECTIVE IRRADIATION - The present invention is provided to enhance security of a volume hologram by recording therein individualized information such as information of character, numerical character, picture pattern, biometric matter and/or the like by irradiating laser light to the volume hologram thereby modifying the same physically or chemically, and is related to a laser marking hologram comprising a volume hologram layer | 01-12-2012 |
20120023988 | DESICCANT AIR-CONDITIONING SYSTEM - To reduce energy consumption, a desiccant air-conditioning system is provided with: an air supply channel | 02-02-2012 |
20120029889 | CENTRIFUGAL CHILLER PERFORMANCE EVALUATION SYSTEM - Design COP is iteratively computed. Provided is a centrifugal chiller performance evaluation system including a data acquisition section for acquiring operating data from a centrifugal chiller as input data; a storage section storing a design COP estimation formula obtained by adding correction values corresponding to losses occurring in an actual environment to a computational formula for ideal actual-machine COP expressed using COP characteristics of a reverse Carnot cycle; and a computing section for estimating a design COP at a current operating point using the operating data acquired by the data acquisition section and the design COP estimation formula stored in the storage section. The correction values include a first correction value calculated from a first computational formula including the load factor of the centrifugal chiller as a variable and a second correction value calculated from a second computational formula including a difference between cooling water outlet temperature and chilled water outlet temperature as a variable. The second correction value contains an offset from the first correction value depending on cooling water inlet temperature. | 02-02-2012 |
20120032070 | VOLUME HOLOGRAM RESIN COMPOSITION, SURFACE RELIEF HOLOGRAM RESIN COMPOSITION, AND HOLOGRAM LAYER, HOLOGRAM TRANSFER FOIL AND BRITTLE HOLOGRAM LABEL USING THE SAME - The major object of the invention is to provide a volume-type hologram resin composition and a surface relief-type hologram resin composition having a high effect of preventing forgery and excellent in foil cutting, as well as a hologram layer and a hologram transfer foil using thereof. To achieve the object, there is provided a volume-type hologram resin composition having at least one kind of photopolymerizable compound, a photopolymerization initiator and fine particles, wherein the fine particles show magnetic resonance. | 02-09-2012 |
20120174609 | HEAT SOURCE SYSTEM - Upon newly installing a system or installing an additional heat source apparatuses, manual adjustment of a number-of-units control device should be eliminated. Provided is a heat source system including a plurality of heat source apparatuses connected in parallel; and a number-of-units control device that controls on and off of the plurality of the heat source apparatuses and allocates a load to an active heat source apparatus according to a load demand, wherein the heat source apparatuses each possess COP map unique to the respective heat source apparatuses that indicates a relationship among operating status, coefficient of performance, and load factor, each of the heat source apparatuses sets the appropriate operating region in correspondence to the operating status from the COP map and sends it to the number-of-units control device, and the number-of-units control device performs number-of-units control of the heat source apparatus and load allocation on the basis of the appropriate operating region that is sent from each of the heat source apparatuses. | 07-12-2012 |
20130025306 | TURBO REFRIGERATION UNIT, CONTROL DEVICE THEREFOR, AND CONTROL METHOD THEREFOR - An object is to provide a turbo-refrigeration-unit control device capable of achieving stable operation and reducing the amount of refrigerant. Provided is a control device for controlling a turbo refrigeration unit that includes a centrifugal compressor, a first-non-refrigerant pump for supplying a first non-refrigerant, a condenser that performs heat exchange between the first non-refrigerant and a refrigerant, an expansion valve that expands the refrigerant, a second-non-refrigerant pump for supplying a second non-refrigerant, an evaporator that performs heat exchange between the second non-refrigerant and the refrigerant, a bypass circuit that is used to inject part of the refrigerant from a discharge port of the centrifugal compressor into a suction port of the centrifugal compressor, and a bypass-circuit control valve that controls the flow rate of the refrigerant. | 01-31-2013 |
20130031920 | APPARATUS AND METHOD FOR EVALUATING PERFORMANCE OF CENTRIFUGAL CHILLER - A calculating section | 02-07-2013 |
20130098084 | CHILLER CONTROL APPARATUS - A chiller control apparatus increases or decreases chillers in order to efficiently operate an entire chiller system. When the number of chillers increases, an insufficient load value calculation unit calculates an insufficient amount of a load for a required load. Then, using a COP obtained according to an operating environment of the chiller, a chiller-to-be-operated selection unit selects, from among stopped chillers, a chiller having the highest COP when operated with an insufficient amount of a load, as the chiller to be subjected to stage increase. Further, when the number of chillers decreases, an operation pattern extraction unit extracts operation patterns that are combinations of chillers to be operated according to the required load. Then, a chiller-to-be-stopped selection unit obtains a COP of the entire chiller system for each operation pattern, using the COP obtained according to the operating environment of the chiller, and selects a chiller subjected to stage decrease based on the operation pattern corresponding to the highest COP. | 04-25-2013 |
20130111940 | HEAT AND COLD SOURCES OF TEMPERATURE AND HUMIDITY INDEPENDENT CONTROL AIR CONDITIONING SYSTEM - The present invention discloses heat and cold sources of a THIC air conditioning system, comprising: a compressor ( | 05-09-2013 |
20130133359 | TURBO CHILLER - In a turbo chiller, pipe joint groups ( | 05-30-2013 |
20130174601 | ESTIMATION APPARATUS OF HEAT TRANSFER MEDIUM FLOW RATE, HEAT SOURCE MACHINE, AND ESTIMATION METHOD OF HEAT TRANSFER MEDIUM FLOW RATE - A flow rate of a heat transfer medium is computed without a flow meter. In a control apparatus ( | 07-11-2013 |
20130180272 | EXPANSION-VALVE CONTROL DEVICE, HEAT-SOURCE UNIT, AND EXPANSION-VALVE CONTROL METHOD - The degree-of-opening of an expansion valve is set to an appropriate degree-of-opening regardless of the load and external conditions for a heat-source unit. In a turbo refrigerator including a compressor that compresses a refrigerant; a condenser that condenses a compressed refrigerant by means of cooling water; an evaporator that evaporates a condensed refrigerant and also performs heat exchange between this refrigerant and cold water; and an expansion valve that causes a liquid-phase refrigerant retained in the condenser to expand, a expansion-valve control device ( | 07-18-2013 |
20130213067 | HEAT SOURCE DEVICE - A heat source device is provided with a differential pressure sensor that measures the differential pressure between an inlet pressure and an outlet pressure for the chilled water in an evaporator and with a control device. The control device possesses the coefficient of loss for the evaporator and is provided with a chilled-water flow-rate computing portion that calculates a chilled-water flow rate at the evaporator on the basis of the coefficient of loss and the differential pressure output from the differential pressure sensor; a control-command computing portion that generates a control command by using a specification heating-medium flow rate that is set in advance; and a control-command correcting portion that corrects the control command generated by the control-command computing portion. | 08-22-2013 |
20130238258 | ESTIMATION APPARATUS OF HEAT TRANSFER MEDIUM FLOW RATE, HEAT SOURCE MACHINE, AND ESTIMATION METHOD OF HEAT TRANSFER MEDIUM FLOW RATE - A required-circulated-refrigerant flow-rate calculating portion provided in a chilled-water flow-rate estimation calculation portion calculates an evaporator exchanged heat quantity exchanged between a refrigerant and chilled water at an evaporator based on a planned chilled-water-flow-rate value and a measured value of the temperature of the chilled water flowing in the evaporator, and calculates an evaporator-refrigerant flow rate based on that evaporator exchanged heat quantity. Then, a circulated-chilled-water flow-rate back-calculating portion back-calculates an evaporator-refrigerant flow rate based on the calculated evaporator-refrigerant flow rate and a ratio between a set value of differential pressure between a condenser and the evaporator and a measured value of that differential pressure, back-calculates an evaporator exchanged heat quantity exchanged between the refrigerant and the chilled water at the evaporator from the back-calculated evaporator-refrigerant flow rate, and back-calculates the flow rate of the chilled water. | 09-12-2013 |
20130330679 | HEAT-SOURCE SELECTING DEVICE FOR HEAT SOURCE SYSTEM, METHOD THEREOF, AND HEAT SOURCE SYSTEM - A heat source system has a plurality of heat sources that can be utilized therein. The plurality of heat sources include unused heat such as sewage and wastewater generated in a facility in which an external load that receives a supply of heating medium heated or cooled by using the heat sources is installed. A system control device ( | 12-12-2013 |
20140153041 | RECORDING SYSTEM, RECORDING APPARATUS, INFORMATION PROCESSING APPARATUS, AND RECORDING CONTROL METHOD - A recording system, including: a recording apparatus configured to perform recording using a recording head having a plurality of recording elements; and an information processing apparatus configured to send a print job to the recording apparatus to shift a range of use of the recording elements in an array direction of the recording elements, the information processing apparatus including: a head shading correction unit configured to execute, based on information indicating that the range of use of the recording elements is one of ranges of use, head shading correction corresponding to the one range on image data; and a sending unit configured to send the image data subjected to the head shading correction to the recording apparatus, the recording apparatus including a recording control unit configured to control the recording head to perform recording at the one range by using the image data subjected to the head shading correction. | 06-05-2014 |
20140222259 | SPEED PROFILE CREATION DEVICE AND AUTOMATIC TRAIN OPERATION APPARATUS - A speed profile creation device includes: a traveling simulator that creates, from a traveling instruction, a speed profile of allowing the train to travel through a traveling section together with a traveling time and energy consumption amount thereof by using a route condition, train performance, and a traveling condition; a traveling instruction draft creator that creates a plurality of traveling instruction drafts in which a reference speed profile is changed so that the energy consumption amount can decrease though the traveling time is lengthened a little; an optimum speed profile selector that selects an optimum speed profile in which an energy consumption amount reduction effect is maximum among the plurality of traveling instruction drafts; and a reference speed profile updating unit that updates the reference speed profile until the traveling time of the optimum speed profile becomes equivalent to the target traveling time. | 08-07-2014 |
20140277858 | SYSTEM AND METHOD FOR OPTIMIZING ENERGY CONSUMPTION IN RAILWAY SYSTEMS - A method optimizes energy consumption in a railway system including a set of trains and a set of substations connected to a grid. The method optimizes control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters minimizing a total power provided by the grid to satisfy a power demand of the railway system. The optimizing is subject to constraints on operations of the railway system, which include as complementarity constraint. Next, the method generates a command to control the energy consumption of the railway system based on the optimized control parameters. | 09-18-2014 |
20140277861 | System and Method for Optimizing Energy Consumption in Railway Systems with Energy Storage Devices - A system and method optimizes energy consumption in a railway system including a set of trains, a set of energy storage devices, and a set of substations connected to a grid by first optimizing control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters. The optimized control parameters minimize, over multiple time steps, a combination of total power provided by the grid to satisfy a power demand of the railway system, a state-of-charge of each energy storage device, power supplied to charge the energy storage device and power supplied by the energy storage device. The optimizing is subject to constraints on operations of the railway system over multiple time steps. The constraints include a complementarity constraint. A command is generated to control the energy consumption of the railway system based on the optimized control parameters. | 09-18-2014 |
20140374497 | HEAT SOURCE SYSTEM, CONTROL DEVICE THEREOF, AND CONTROL METHOD THEREOF - A technique of suppressing power consumption of a system so as to be equal to or less than contracted power when a refrigerator is used as a heat source is provided. A system control device ( | 12-25-2014 |
20150027838 | DC FEEDER VOLTAGE CONTROL APPARATUS AND DC FEEDER VOLTAGE CONTROL SYSTEM - A DC feeder voltage control apparatus includes a model-information storing unit storing train model information on each train running in a control section, substation model information on each substation, and feeding network model information in the control section, a fixed-voltage-value storing unit storing a fixed voltage value of a substation voltage set for each substation, a train-operation-state-information acquiring unit acquiring positions and operation state information on the trains running in the control section, a first-substation-voltage fixing unit outputting the fixed voltage value to two first substations located at both ends of the control section, and a second-substation-voltage calculating unit calculating a setting voltage value of the substation voltage in at least one second substation located between the two first substations based on the information, and substation voltages and substation currents of the first substations to output to the second substation. | 01-29-2015 |