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Controlling or proportioning feed

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431 - Combustion

431002000 - PROCESS OF COMBUSTION OR BURNER OPERATION

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DocumentTitleDate
20130045451Compensating for Gas Applicance De-Rate at High Altitudes - Apparatus and methods are provided for compensating for high altitude reduction in the heating capacity of a gas heating appliance, illustratively a gas-fired heating furnace. In a representative embodiment of such apparatus and methods the regulated pressure of the furnace gas valve, and the speeds of its combustion and indoor blowers, are coordinatingly increased to provide the furnace with a substantially unchanged maximum heating output despite its new higher altitude location.02-21-2013
20090197212Premix Burner Control System and Method - A fan modulated premix burner control system includes a regulating control valve for regulating the pressure of gas fed to a premix chamber. The pressure of the gas is based on the pressure of air also fed into the chamber to produce a constant air/fuel ratio. The system also includes an air restrictor for reducing the pressure of the air to permit operation of the burner at low fan speeds.08-06-2009
20110195367Burner Assembly with Enhanced Flexibility - The invention relates to a burner assembly with enhanced flexibility, comprising a plurality of fuel rods that can be mounted in and removed from a fuel rod passage and that are connected to a fuel supply device by a flexible line, wherein each flexible line can be individually opened and closed.08-11-2011
20120178031Push and Pull Premix Combustion System With Blocked Vent Safety Shutoff - A furnace with a push and pull combustion system is disclosed. The furnace may include a cabinet housing a burner box, a gas valve assembly, a premix chamber, a heat exchanger, a blower, an induced-draft blower, and a flue pipe. The gas valve assembly may meter gas into the premix chamber, while the blower may draw air into the premix chamber, wherein air and gas may mix to produce a lean gas/air mixture. The blower may also push the lean gas/air mixture into the burner box. The burner box may ignite the lean gas/air mixture to produce combustion products. A blocked vent safety shutoff switch may be mounted over an opening of the burner box to ensure negative pressure by detecting any leakage of combustion products. The induced-draft blower may pull the combustion products through the heat exchanger, the flue pipe, and out into the atmosphere.07-12-2012
20130078582METHOD OF OPERATING A COMBUSTION CHAMBER - A method of operating a “rich burn” combustion chamber includes supplying 10% of the air through an inlet in an upstream wall; supplying 64% to 80% of the air for mixing and supplying 10% to 26% of the air for cooling at least one double skin wall and the upstream wall; supplying a first portion of the 64% to 80% of the air for mixing through mixing ports into the combustion chamber; supplying a second portion of the 64% to 80% of the air for mixing to provide convective cooling of the at least one double skin wall before being supplied through additional mixing ports into the combustion chamber; and supplying the 10% to 26% of the air for cooling the at least one double skin wall and the upstream wall to provide convective and/or effusion cooling of the at least one double skin wall and the upstream wall.03-28-2013
20130040251SYSTEM AND METHOD FOR OPTIMISING COMBUSTION IN PULVERISED SOLID FUEL BOILERS, AND BOILER INCLUDING SUCH A SYSTEM - The system comprises a boiler (02-14-2013
20100040989Combustor Control - An apparatus and method for controlling a combustor on a vapor recovery process system which prevents excessive oxygen from entering a natural transmission line and which prevents the need to vent natural gas to the atmosphere.02-18-2010
20090325111METHOD AND BURNER FOR MANUFACTURING A GLASS OPTICAL FIBRE PREFORM BY VAPOUR DEPOSITION - A method is disclosed for feeding a flow of gas to a burner for manufacturing an optical fibre preform, said burner comprising: a plurality of coaxial tubes, each two adjacent coaxial tubes defining an annular channel between themselves; an annular gas distribution chamber at one extremity of said annular channels and in fluid communication therewith, said annular distribution chamber being delimited in the radial direction by an inner and an outer surface; said method comprising introducing the flow of gas into the distribution chamber so that the direction of its radially outermost portion is tangential to the radially outer surface of the distribution chamber. The method allows obtaining a better gas velocity distribution in said annular channels. A burner for performing said method is also disclosed.12-31-2009
20130071797GAS APPLIANCE AND METHOD OF CONTROLING THE GAS APPLIANCE - The present invention provides a water heater, including a combustor, a gas pipe, a combustion controller, a pressure gauge, and a controller. The gas pipe supplies the combustor gas. The combustion controller controls combustion of the combustor. The pressure gauge detects a gas pressure in the gas pipe and generates an electrical signal in association with the gas pressure. The controller is electrically connected to the gas gauge and the combustion controller to receive the electrical signal from the gas gauge and controls the combustion controller according to the electrical signal to adjust the combustion of the combustor. In addition, the present invention further provides a method of controlling the water heater.03-21-2013
20090092936PRESSURE REGULATOR WITH BLEED ORIFICE - A pressure regulator having a housing that defines a gas inlet, a gas outlet, and a reference pressure connector. A diaphragm is provided in the housing, where the diaphragm defines, at least in part, a reference pressure chamber. In some illustrative embodiments, the reference pressure connector fluidly references the reference pressure chamber to a first pressure via a first orifice, and to a second pressure via a second bleed orifice. A gas valve incorporating a pressure regulator is also disclosed.04-09-2009
20110045419METHOD FOR BURNING LIQUID FUELS - A method for burning liquid fuels, wherein an amount of total combustion air required for burning is introduced into the liquid fuel in the form of small air bubbles to provide a highly variable overall heat output, particularly at least within a range of one to fifty times the amount of heat output in a similar system, where the liquid fuel/air mixture produced is at least 10 bar. The combustion air is intermittently fed to an injection nozzle protruding into a combustion chamber and is atomized there to produce an explosion at a constant injection pressure. The duration of each of the liquid fuel/air mixtures introduced with each fuel injection pulse is kept constant at a desired value and the total amount of the liquid fuel/air mixture injected per time unit is adjusted between constant fuel injection pulses by varying the duration. The remaining amount of the combustion air is introduced in the combustion chamber through an air nozzle annularly surrounding the port of the injection nozzle.02-24-2011
20120115095COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion blower. Additional operating points may be calculated by interpolation and/or extrapolation, as appropriate. The furnace may temporarily alter these operating points as necessary to keep the furnace safely operating in response to minor and/or transient changes in the operating conditions of the furnace.05-10-2012
20120115094COMBUSTION SYSTEM OF A STEAM GENERATOR DESIGNED FOR OXYFUEL OPERATION - For a steam generator comprising a combustion chamber fired with a fossil fuel and/or with particulate fuel containing carbon and at least one burner level comprising several burners (05-10-2012
20120115093COMBUSTION APPARATUS AND METHOD FOR COMBUSTION CONTROL THEREOF - A combustion apparatus. Combustion means (burner) generates flame by combustion. Air supply means (intake fan) supplies air to the combustion means. Flame current detecting means (FRB) is set at a certain detection position and detects a flame current value included in the flame which is generated by the combustion means. Determination means (control device) determines a distribution where the flame current value that is detected is included for the flame current detecting means. Control means (control device), when the flame current value is not included in a distribution, which is set as normal values, outputs a control command of increasing or decreasing at least one of the supply of the air by the air supply means and the supply of fuel based on a determination result by the determination means.05-10-2012
20100055629POWDERED FUELS, DISPERSIONS THEREOF, AND COMBUSTION DEVICES RELATED THERETO - This application describes powdered fuels, methods of producing powdered fuels source, and dispersions of powdered fuels, as well as systems, kits, and methods for producing and adapting combustion devices to burn powdered fuel, either as a sole fuel source or in combination with existing fuel sources. Exemplary embodiments include engines and furnaces adapted to combust powdered fuel.03-04-2010
20100086883METHOD FOR REACTING SELF-IGNITING DUSTS IN A VACUUM PUMP DEVICE - Into a vacuum pump device arranged for suctional intake of a process gas (04-08-2010
20130164696Stepper Motor Gas Valve and Method of Control - A stepper-motor gas valve control is disclosed that includes a main diaphragm in a chamber that controllably displaces a valve relative to an opening in response to changes in pressure, to adjust fuel flow through the valve. A servo-regulator diaphragm is provided to regulate flow to the main diaphragm, to thereby control the rate of fuel flow. A stepper motor is configured to move in a stepwise manner to displace the servo-regulator diaphragm, to control fluid flow to the main diaphragm. A controller mounted on the stepper-motor regulated gas valve control receives and converts an input control signal from a heating system to a reference value between 0 and 5 volts, and selects a corresponding motor step value. The control responsively moves the stepper-motor in a step wise manner to displace the servo-regulator diaphragm and thereby regulates the rate of fuel flow through the valve.06-27-2013
20100178622OPERATING METHOD FOR A SOLID FUEL BURNER - The invention belongs to the engineering domain of heating systems, in particular heating systems for chipped to free-flowing fuels in solid form and relates to an operating method for a solid fuel burner. The aim of the invention is to design an operating method for a solid fuel burner, which achieves an efficient operating mode for said burner with the main focus on minimizing the production of aggressive substances such as acids. To achieve this, according to the invention, the burner operation has a double or triple combustion phase profile and the burner operates with two different groups of combustion material.07-15-2010
20090136881COMBUSTION DEVICE - A combustion device in the form of a paraffin stove (05-28-2009
20100330514Burner Forming and Applying Mixed Cyclone and Combustion Method Using the Burner - This patent application relates to a burner which includes a burner head in the shape of a sleeve, under the burner head is connected with a ring gas-separating box, and in the space between the burner head and the gas-separating box there is a cylinder mixing box to mix the air and gas. Said gas-separating box has a independent center hole to bring in the air and gas inlets to bring in the gas. Several notches which are equispaced with each other and slant upwardly are set on the cylinder surface of the mixing box, while on the surface of the notches are positioned connecting holes to let the air out. Such a structure promotes the mixing process more fully of the dispersed gas and air in the slant upward notches, and the mixed flow rotates upwardly to reach the flame hole as a inversed cone frustum. Due to the full mixing of the gas and air and upward rotation of the mixed flow, the flame will burn more completely and be uneasy to be extinguished.12-30-2010
20120107753BURNER CONTROL SYSTEMS AND METHODS OF OPERATING A BURNER - Burner control systems and methods of operating a burner are for a large boiler such as might be used in hospitals, hotels, offices or other large commercial or domestic premises.05-03-2012
20110300493Methods and Systems For Controlling The Products of Combustion - The present invention relates to methods and systems for controlling a combustion reaction and the products thereof. One embodiment includes a combustion control system having an oxygenation stream substantially comprising oxygen and CO12-08-2011
20110287372Method and Device for Monitoring the Combustion Process in a Power Station on the Basis of an Actual Concentration Distribution of a Material - Methods and a device for monitoring the combustion process in a power station are provided. An actual concentration distribution of a material and/or an actual temperature distribution are measured in the combustion chamber. Conclusions are drawn regarding the type of combustion material on the basis of the measured actual concentration distribution or temperature distribution. A concentration distribution or temperature distribution of a material that has been determined using a sample fuel is compared with the measured actual concentration distribution or temperature distribution.11-24-2011
20110294078Method for Controlling a Gas Burner and a Hob with Several Gas Burners - With a method for controlling a gas burner, the latter is supplied with gas by an electronically controllable gas valve, wherein it is supplied with gas by the gas valve in a low power range and in a high power range. Only one of the power ranges is available at any point in time, wherein in each of the power ranges a power from a minimum power to a maximum power can be preset at the gas burner using an operating element. The low power range and the high power range differ here by more than 50%.12-01-2011
20110294077Method of Controlling a Boiler Plant During Switchover From Air-Combustion to Oxygen-Combustion - A method of controlling a boiler plant during a switchover period from an air-combustion mode to an oxygen-combustion mode. The method includes steps of feeding fuel into a furnace of the boiler plant at a rate determined by a fuel feeding scheme, feeding air into the furnace at a rate determined by a descending air feeding scheme, feeding substantially pure oxygen into the furnace at a rate determined by an ascending oxygen feeding scheme, and recirculating flue gas into the furnace at a rate determined by an ascending flue gas recirculating scheme. The fuel feeding scheme, the air feeding scheme and the oxygen feeding scheme are such that the fuel is combusted and the flue gas containing residual oxygen is produced. Also, the fuel feeding scheme, the air feeding scheme and the oxygen feeding scheme are such that the content of residual oxygen in the flue gas is, during at least a portion of the switchover period, greater than during any of the air-combustion mode and the oxygen-combustion mode. The method makes it possible to reduce CO12-01-2011
20090214992METHODS OF COMBUSTION OF POWDERED FUELS AND POWDERED FUEL DISPERSIONS - Methods of combustion include metering a substantially explosible powder into an oxidizing gas using a positive displacement powder dispersion device to suspend the powder in the gas and directing the powder in the gas to form a controlled stream of a moving explosible powder dispersion. In some embodiments, the method further includes igniting the dispersion with an ignition source to produce a stationary deflagrating combustion wave and sustaining combustion by continuing to meter the powder into the gas. In other embodiments, the method further includes adjusting a nozzle velocity of the dispersion to reflect properties of the dispersion to create a sustainable flame and igniting the dispersion to produce a stationary deflagrating wave of the dispersion. In other embodiments, the method further includes igniting the dispersion in a combustion area to produce a stationary deflagrating wave such that a conductive heat transfer from combustion brings the powder to combustion temperature.08-27-2009
20110300494CONTROL SYSTEM AND METHOD FOR A SOLID FUEL COMBUSTION APPLIANCE - A control system for a solid fuel combustion appliance, e.g., a wood burning stove, includes a temperature sensor for sensing an output temperature of the appliance. A controller receives the output temperature and controls a damper associated with air flow through the stove to maintain a predetermined temperature. The system also includes a detector that senses certain conditions of the solid fuel, e.g., wood, that is burned by the stove. When additional fuel is added to the appliance, the system temporarily encourages initial combustion of the new fuel, before returning to maintaining the predetermined temperature.12-08-2011
20120034568COMBUSTION AIR CONTROL - Embodiments of the present disclosure include devices and methods for controlling combustion air. For example, in one embodiment, a method for controlling combustion air includes determining an amount of leaking air in a boiler, determining a constant that depends on a heating value of a fuel in the boiler, and adjusting an amount of controlled air supplied to the boiler.02-09-2012
20100086884CONTROL SYSTEM FOR THE IGNITION OF A GAS BURNER - A control system for the ignition of a gas burner that include an electromagnetic valve having a first coil and a second coil, the activation of the first and second coils controlling the flow of gas through the electromagnetic valve. An ignition element which is designed to be heated until it reaches the gas combustion temperature of the gas delivered to the burner is disposed electrically in series with the first coil, the ignition element and first coil forming a branch. The control system also includes an auxiliary electromagnetic valve with a coil, the activation of the coil controlling the flow of gas through the auxiliary electromagnetic valve. The flow of gas towards the burner is allowed when both the electromagnetic valve and the auxiliary electromagnetic valve are open.04-08-2010
20120107752SYSTEMS, METHODS, AND APPARATUS FOR DETERMINING AIRFLOW THROUGH A BURNER - Certain embodiments of the invention may include systems, methods, and apparatus for determining airflow through a burner. According to an example embodiment of the invention, a method is provided for determining airflow through a burner. The method includes installing a first end of an inlet pressure transmission tube in an air inlet region of a furnace burner system, installing a first end of a burner pressure transmission tube in a burner exit region of the furnace burner system, connecting a second end of the inlet pressure transmission tube to a first pressure sensor, connecting a second end of the burner pressure transmission tube to a second pressure sensor, measuring the differential pressure between the first and second pressure sensors, and determining airflow based at least in part on the measured differential pressure.05-03-2012
20090042152COMBUSTION METHOD AND COMBUSTION APPARATUS - First, to decrease an amount of emitted nitrogen oxides to zero as much as possible and also decrease an amount of emitted carbon monoxide to a permissible level. Second, to save energy on combustion at a low air ratio close to 1.0. Third, to attain a stable air ratio control in a low air ratio combustion region.02-12-2009
20100279237System and Method for Entertaining and Producing a Fire Show - A bowl that is configured for containing liquid such as water has a gas distribution apparatus in the bowl beneath the surface of the liquid and a gas source attached thereto. The gas distribution apparatus includes a movable gas distribution conduit that may be controlled to move in a predetermined pattern so that gas bubbles are emitted in a desired and controlled manner, or alternately, includes a gas distribution plate that causes gas bubbles to emit in a random manner. When the bubbles of gas burst at the surface of the liquid they are ignited, resulting in pleasant displays of flame.11-04-2010
20090280445METHOD OF CONTROLLING GAS TYPE CLOTHES DRYER - Disclosed herein is a method of controlling a gas type clothes dryer. The method control the dryer to continuously detect condition of a flame sensor even after ignition of the dryer, thereby preventing a drying operation from being performed when a flame has been extinguished due to insufficient gas supply caused by failure of a gas valve.11-12-2009
20080280240COMBUSTOR FOR COMBUSTION SYNTHESIS OF FULLERENES - A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor. A secondary zone is also disclosed which provides further residence time for reaction and the ability to control operating parameters, operates on the principle of minimizing recycle of the reacting combustion mixture. The secondary zone may be operated as approximately a plug-flow reactor. The primary and secondary zones may be operated in conjunction or either one alone.11-13-2008
20080293000VARIABLE ORIFICE GAS FLOW MODULATING VALVE - A temperature control system for a gas appliance utilizes an improved variable orifice gas flow modulating valve (11-27-2008
20120288805HEATING SYSTEM AND METHOD FOR OPERATING SAID SYSTEM - The invention relates to a heating system and a method for operating said system, comprising a first and a second heating device (11-15-2012
20120288804METHOD AND DEVICE FOR OPERATING A CONVEYOR FOR A COMBUSTION PRODUCT - Method and device for operating a conveyor for a combustion product, in which, during the conveyance, through the detection and analysis of properties (such as volume flow, mass flow, moisture, temperature, grain size) of the combustion product by means of microwaves, a control of transport parameters (such as transport speed, cooling of the combustion product, supply of combustion product, degree of crushing) is realized. It is herein possible to protect the conveyor thermally and mechanically and, at the same time, to ensure real-time regulation of the composition and quantity of the combustion product for following treatment steps.11-15-2012
20110269081SYSTEMS AND PROCESSES FOR IMPROVED COMBUSTION CONTROL - Combustion systems and processes are disclosed. A cross-limiting override control system is configured to transmit remote set points to flow controllers configured to control the flow rates of a primary firing fuel and air to a combustion apparatus. A temperature controller is configured to transmit a temperature demand signal based on a temperature in a combustion zone in the combustion apparatus. An analyzer controller is configured to transmit a stoichiometric ratio control signal based on an excess oxygen level exiting the combustion zone in the combustion apparatus. The cross-limiting override control system includes a dynamic stoichiometric ratio multiplier element configured to receive the stoichiometric ratio control signal transmitted from the analyzer controller, a high signal select element configured to receive the temperature demand signal transmitted from the temperature controller, and a low signal select element configured to receive the temperature demand signal transmitted from the temperature controller.11-03-2011
20090297997COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion blower. Additional operating points may be calculated by interpolation and/or extrapolation, as appropriate. The furnace may temporarily alter these operating points as necessary to keep the furnace safely operating in response to minor and/or transient changes in the operating conditions of the furnace.12-03-2009
20090162801DEVICE AND METHOD FOR A GAS BURNER - A gas range having a cook top and a gas burner assembly connected to a source of gas having a variable flow rate. The burner assembly is positioned in the cook top. The gas burner assembly has a burner body with a gas input, the gas input is in a first flow communication with a first chamber and a second flow communication with a second chamber. Each chamber has at least one port in an exterior wall for flow communication to an area external of the burner body for combustion of the gas. The second flow communication has a tripping pin to deflect flow during high flow conditions and to not deflect flow during low flow conditions. A burner cap is positioned on the burner body.06-25-2009
20110207063REDUCTION OF CO AND NOX IN FULL BURN REGENERATOR FLUE GAS - A hot oxygen stream containing radicals is fed into a gas stream, such as a catalyst regenerator flue gas stream, that contains carbon monoxide to convert carbon monoxide to carbon dioxide.08-25-2011
20110207062OXYGENATED FUEL - Techniques, systems, apparatus and material are disclosed for generating oxygenated fuel. In one aspect, a method of producing an oxygenated fuel from biomass waste for use in a combustion system includes dissociating the biomass waste to produce one or more carbon donors. The biomass waste produced carbon donors are reacted with an oxygen donor to produce the oxygenated fuel comprising oxygenated carbon. Reacting the carbon donors with the oxygen donors includes applying waste heat recovered from an external heat source to the reaction of carbon donors and oxygen donor. The oxygenated fuel is combusted in the combustion system.08-25-2011
20090208888METHOD FOR CONTROLLING THE TEMPERATURE OF AN APPLIANCE - A method of controlling the temperature of a food preparation or sanitation appliance includes sensing the actual temperature of the appliance. When the temperature of the appliance is greater than a maximum threshold temperature, a compressor which supplies pressurized air to a burner is shut-off and a flame sensor, which senses the presence or absence of a flame, is overridden so the appliance acts as if a flame is present. When the actual temperature is less than a minimum threshold temperature, the compressor is started.08-20-2009
20090191493Apparatus and method for controlling a damper in a gas-fired appliance - A gas-fired appliance is provided having a burner which is configured to receive and burn pressurized gas, such as natural gas, during operation. A control comprises a pressure switch having an inlet exposed to pressure from the pressurized gas during operation of the burner, a battery, and a motor operatively connected to the battery and the pressure switch which is operated in response to the application of pressurized gas at the inlet. A damper assembly is connected to the motor. The damper assembly comprises a damper movable between an open position and a closed position in response to operation of the motor.07-30-2009
20090220900COMBUSTION WITH VARIABLE OXIDANT LOW NOX BURNER - Heating provided by a burner that combusts hydrocarbon fuel can be provided at a sequence of different heat transfer rates by adjusting the total oxygen concentration of oxidant streams fed to the burner. A burner with which the method can be practiced is also disclosed.09-03-2009
20090117503Burner Control - A reactant supply and control system supplies a regenerative burner assembly with streams of pilot fuel and pilot air. The system can maintain a pilot flame throughout regenerative cycles in which a main flame is turned on and off, and supplies either or both of the pilot streams with an increased flow rate for shifting from a regenerative exhaust condition to a regenerative firing condition.05-07-2009
20090239182COMBUSTION METHOD WITH CYCLIC SUPPLY OF OXIDANT - The invention concerns a combustion method for industrial furnace comprising an arrangement of two substantially parallel and symmetrical burner assemblies (G, D). Each burner assembly comprises a fuel injector (10G, 10D) and three oxidant injectors (1G, 2G, 3G, 1D, 2D, 3D) arranged at increasing distances from the fuel injector. An oxidant supply system cyclically distributes a specific flow of oxidant among some at least of the second and third injectors of the burner assemblies (2G, 3G, 2D, 3D). The amount of nitrogen monoxide produced upon combustion is thus reduced, while ensuring a good distribution of the heating power in the furnace.09-24-2009
20130122434COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR - A combustor includes an end cap, a combustion chamber downstream from the end cap, and a plurality of tubes that extends through the end cap to provide fluid communication through the end cap to the combustion chamber. A casing surrounds the end cap, and a conduit extends from the casing to the end cap. A duct extends around the conduit and inside the end cap to provide fluid communication to the end cap. A method for supplying fuel to a combustor includes flowing a working fluid through a plurality of tubes that extends axially through an end cap, supplying a first fluid through a conduit into the end cap, and supplying a second fluid through a duct spiraling around the conduit into the end cap.05-16-2013
20130122435COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR - A combustor includes an end cap having an upstream surface axially separated from a downstream surface. A cap shield circumferentially surrounds the upstream and downstream surfaces, tubes extend from the upstream surface through the downstream, and a plenum is inside the end cap. A first baffle extends radially across the plenum toward the cap shield, and a plate extends radially inside the plenum between the first baffle and the upstream surface. A method for supplying fuel to a combustor includes flowing a working fluid through tubes, flowing a fuel into a plenum between upstream and downstream surfaces, radially distributing the fuel along a first baffle, and axially flowing the fuel across a plate that extends radially inside the plenum.05-16-2013
20130122436COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR - A combustor includes a casing that encloses at least a portion of the combustor. A fuel conduit extends downstream from the casing and includes a tortuous path for fuel flow inside the fuel conduit. A method for supplying fuel to a combustor includes flowing a working fluid through tubes that extend axially through an end cap. The method further includes supplying a fuel through a fuel conduit into the end cap, supplying a diluent through a diluent conduit that extends axially inside the fuel conduit, and swirling the fuel flowing through the fuel conduit around the diluent flowing through the diluent conduit.05-16-2013
20100255434SYSTEM AND CONTROL METHOD FOR DETECTING AN ABNORMAL BURNING SITUATION USING AIR PRESSURE SENSING AND FLAME DETECTION - Disclosed is a method for detecting a combustion state of a boiler, and more particularly to a boiler and a method capable of exactly detecting an abnormal combustion state of a gas boiler using an air pressure sensor and a flame detection unit, thereby improving efficiency of the boiler. The method comprises the steps of (S1) supplying air to a burner through a fan, (S2) detecting whether an optimum amount of air is supplied through step (S1) by using the air pressure sensor, (S3) continuously detecting a status of a flame through the flame detection unit if the flame is made by an ignition part, (S4) converting a size of the flame into a corresponding voltage value, inputting the voltage value into a microcomputer, and comparing the voltage value with a preset target voltage value, (S5) stopping a combustion process if the microcomputer determines that the air pressure sensor erroneously operates based on a fact that a difference value between the voltage value and the preset target voltage value exceeds a reference value, and (S6) displaying an error message indicating an abnormal combustion state if the microcomputer determines that the air pressure sensor erroneously operates.10-07-2010
20100255432Method Of Regulating The Flow Of Combustible Gas During The Start-Up Phase Of A Reforming Furnace - A method for regulating the flow of combustible gas conveyed to the burners of the reforming furnace of a steam reformer, enabling the gas flow feeding the ignited burners of said furnace to be regulated is provided.10-07-2010
20100255433CONTROL SYSTEMS FOR THE IGNITION OF A GAS BURNER - A system or apparatus that in one implementation includes an electromagnetic valve having an actuator rod with a first coil and a second coil positioned at different longitudinal locations on the actuator rod and being situated electrically parallel to one another in an electrical circuit. The electromagnetic valve is constructed to induce a first voltage in the second coil when the electromagnetic valve is in the open position and to induce in the second coil a second voltage lower than the first voltage when the electromagnetic valve is in the closed position. A switch changeable between a first position and a second position is located in the electrical circuit. When the switch is in the first position the electrical circuit is configured to allow current from a power source to be delivered to the second coil. When the switch is in the second position the electrical circuit is configured to not allow current from a power source to be delivered to the second coil. A control device situated in series with the second coil in the electrical circuit is adapted to detect the open or closed position of the first electromagnetic valve based on the induced voltage of the second coil. The control device is adapted to act upon the switch to change it between the first and second positions. In one implementation, upon detecting that the electromagnetic valve is in the closed position, the control device is configured to act upon the switch to cause it to assume the first position.10-07-2010
20120034567AUTOMATIC GAS TORCH IGNITION IN AN OXYGEN RICH ENVIRONMENT - A method of starting an auto-ignition gas torch includes increasing a flow of oxygen above zero and increasing a flow of fuel gas to a level lower than the flow of oxygen for improved start reliability. In one form, the flow of oxygen is from about two times to about six times higher than the flow of fuel gas.02-09-2012
20090111065Method and apparatus for controlling combustion in a burner - A method and apparatus that applies corrections to the mass flow rate of combustion air into a gas or oil-fired, forced-draft burner, and thus provides for correcting the air-fuel ratio, by directly measuring the combustion air temperature and/or the barometric pressure of the combustion air, and using these measurements to develop a fan speed drive signal that corrects the volume of air inlet to the burner system without the use of the complex and expensive fully metered control systems, or elaborate feedback systems, or systems that require real-time combustion analysis, and the like.04-30-2009
20100297565Grafted Polymer Drag-Reducing Agents, Grafted Polymer Fuel Additives and Production Methods Therefor - The invention includes a method of reducing drag in a pipeline and/or improving the combustion efficiency of a fuel burning device by adding a grafted polymer to a hydrocarbon product. The invention also includes a method of improving the combustion efficiency of a gasoline engine by adding a grafted polymer to fuel and combusting the fuel within the gasoline engine, the grafted polymer having a viscoelastic effect in gasoline in the gasoline engine to generally correspond to a duration of the intake stroke/compression stroke/fuel burn sequence in a gasoline engine.11-25-2010
20100323310Method for mechanical stoking in firing installations and firing installation - A method for mechanical stoking in firing installations and a firing installation is provided. Fuel is applied to a grate using a mechanical stoker, the grate being disposed in a firing chamber, wherein the mechanical stoker is oriented opposite a delivery direction of the grate. The fuel is introduced directly below a firing chamber ceiling, viewed in the delivery direction of the grate before the end of the grate such that a burnout zone, which does not have fresh fuel applied thereto, is created on the grate between the mechanical stoker and the end of the grate.12-23-2010
20110008737OPTICAL SENSORS FOR COMBUSTION CONTROL - Certain embodiments of the invention may include systems and methods for providing optical sensors for combustion control. According to an example embodiment of the invention, a method for controlling combustion parameters associated with a gas turbine combustor is provided. The method can include providing at least one optical path adjacent to a flame region in the combustor, detecting at least a portion of the light emission from the flame region within the at least one optical path, and controlling at least one of the combustion parameters based in part on the detected light emission.01-13-2011
20110111354MULTISTAGE GAS FURNACE HAVING SPLIT MANIFOLD - A heating apparatus for a heat exchanger system includes a manifold having a plurality of burners, a shutoff valve, a first controller and a second controller. The shutoff valve divides the manifold into a first manifold portion and a second manifold portion. The first controller selectively controls the communication of a fluid within the manifold. The second controller selectively actuates the shutoff valve between a first position and a second position to control a firing rate of the plurality of burners.05-12-2011
20110033808METHOD FOR REGULATING AND CONTROLLING A FIRING DEVICE AND FIRING DEVICE - A method is proposed for regulating a firing device taking into account the temperature and/or the burner load, in particular with a gas burner, comprising the regulation of the temperature (T02-10-2011
20110045421METHOD AND APPARATUS OF CONTROLLING OXYGEN SUPPLY FOR BOILER - An apparatus of controlling oxygen supply for a boiler having wind boxes 02-24-2011
20100143853FUEL EQUALIZATION SYSTEM - A fuel equalization system includes a filter box for accepting an air stream and a fuel stream, the air stream and the fuel stream mixing to form a mixed air/fuel stream. A blower is provided that has an inlet for accepting the mixed air/fuel stream from the filter box. An air deflection member is positioned in the path of the mixed air/fuel stream, between the filter box and the inlet, so as to reduce the turbulence of the mixed air/fuel stream.06-10-2010
20090311642Oxygen Control System For Oxygen Enhanced Combustion - A method of configuration of combustion process control. The method includes providing a combustion system having a plurality of burner elements, a plurality of gas injection points and a controller. The gas injection points are configured to provide a support gas. One or more tasks for operation of the combustion system are determined. A plurality of groupings of the gas injection points are determined for each of the one or more tasks. An individual ranking for each of the plurality of groupings is determined in response to the one or more tasks. A composite ranking of injection points in response to the individual rankings and the controller is configured to operate the plurality of gas injection points in response to the composite ranking. A combustion system and a method for operating a combustion system are also disclosed.12-17-2009
20100062381OXY-FUEL COMBUSTION SYSTEM WITH CLOSED LOOP FLAME TEMPERATURE CONTROL - A control system for an oxy-fuel combustion process is disclosed for use with a boiler or furnace which dynamically controls the flame temperature of each burner involved in the combustion process to dynamically maximize the flame temperature. The boiler or furnace used in conjunction with the combustion process in accordance with the present invention is configured with a radiant, i.e. line of sight, heat zone and a convective heat zone. By dynamically maximizing the flame temperature of the various burners within the boiler or furnace, the radiant heat transfer is optimized. By optimizing the radiant heat transfer within the boiler or furnace, the efficiency of the boiler or furnace is significantly improved.03-11-2010
20090214991APPARATUS AND METHODS FOR SUPPLYING FUEL EMPLOYED BY ABATEMENT SYSTEMS TO EFFECTIVELY ABATE EFFLUENTS - An abatement apparatus for introducing fuel into an electronic device manufacturing effluent abatement tool, including: a manifold; a fuel source adapted to supply fuel to the manifold through a fuel conduit; and a plurality of nozzles adapted to receive fuel from the manifold; wherein the manifold is adapted to supply fuel to the nozzles at a fuel velocity greater than a flame velocity.08-27-2009
20110097675SAFETY LIGHTER WITH DOUBLE-WHEEL AND BUFFER-WHEEL IGNITION DEVICE - A safety lighter includes double rotating wheels provided on each side of a sparking wheel, with a buffer wheel between one of the double rotating wheels and the sparking wheel and received around an axle portion of the one rotating wheels. The buffer wheel hinders rotation of the rotating wheels and sparking wheel, idling freely and shielding one of the rotating wheels from a young/small user. Upon sufficient adult force downward on the buffer wheel, however, the axle and aperture surfaces will mate/grip sufficiently to allow the force on the buffer wheel to drive the rotating wheel. Also, some adults will be able to press the buffer wheel (to engage with the axle) and both of the two rotating wheels at the same time to drive the wheel set. The buffer wheel may be included in a common double-wheel lighter wheel system, with little if any change to the total axial length of the wheel assembly, and, hence, little if any change to the lighter structure other than the wheels.04-28-2011
20110070550CONTROL FOR MONITORING FLAME INTEGRITY IN A HEATING APPLIANCE - A control apparatus for a gas-fired heating appliance having a burner is provided for sensing burner flame instability. The apparatus includes a sensor for sensing a flame and providing an output of a flame current signal, and a controller in communication with the sensor for sensing flame current. The controller is configured to receive the flame current signal and to detect the occurrence of a flame instability condition. The controller detects flame instability from flame current signal data that is measured and Fourier transformed into a frequency spectrum which changes from a stable to instable spectrum when flame instability is caused by an inadequate air-to-fuel ratio. The controller is configured to respond to flame instability by generating an output signal to increase the speed of a combustion air blower that supplies air to the burner, to thereby increase the air flow relative to fuel flow until normal combustion is attained.03-24-2011
20110065054FURNACE - A gas fired furnace capable of operating with a 16:1 turndown ratio or greater. The furnace includes a plurality of burners (03-17-2011
20110212404AUTOMATED SETUP PROCESS FOR METERED COMBUSTION CONTROL SYSTEMS - A method is provided for the automated setup of a metered combustion control system for controlling operation of a boiler combustion system. The automated setup process includes both commissioning and controller tuning, rather than tuning the carbon monoxide and/or oxygen trim controller after the commissioning process has been completed. The oxygen trim controller or the carbon monoxide trim controller is used to identify the air/fuel ratio.09-01-2011
20100304316SYSTEM AND METHOD FOR CONTROLLING THE CALORIE CONTENT OF A FUEL - The present invention pertains generally to a system and method for providing fuel having a desired calorie content to a combustion engine over a range of operating levels. The system mixes a first fuel from a first fuel supply pipe with a second fuel from a second fuel supply pipe at a mixing point to create a mixed fuel having a first calorie content. A control valve is located in the second fuel supply pipe upstream of the mixing point. A process system downstream of the mixing point processes the mixed fuel to create a processed mixed fuel having a second calorie content. A first control signal is reflective of the first calorie content of the mixed fuel. A second control signal is reflective of the second calorie content of the processed mixed fuel. A third control signal is reflective of the operating level of the combustion engine. A controller connected to the control valve operates the control valve based on the first, second, and third control signals.12-02-2010
20080318172Method for Regulating and Controlling a Firing Device and a Firing Device - A method is proposed for regulating a firing device taking into account the temperature and/or the burner load, in particular with a gas burner, comprising the regulation of the temperature (T12-25-2008
20120171630CHEMICALLY-MODIFIED MIXED FUELS, METHODS OF PRODUCTION AND USES THEREOF - A chemically-modified mixed fuel includes methane gas from at least two methane-production sources and can be utilized in any process that incorporates a Kellogg Primary Reformer. A method for producing the chemically-modified mixed fuel described herein includes providing a first methane-containing gas from a first methane-production source, providing a second methane-containing gas from a second methane-production source and blending the first methane-containing gas with the second methane-containing gas at a suitable pressure to form a chemically-modified mixed fuel. In some cases, at least one additional methane-containing gas can be provided from at least one additional methane-production source and blended with the chemically-modified fuel.07-05-2012
20090317754Flare gas flammability control - A plant gas to be flared in the atmosphere is periodically sampled and analyzed as to its Btu content, a first comparison made of 1) the most recent of such analyses with 2) a predetermined steady state set point, a second comparison made of 3) an average of a plurality of such analyses including an historical minimum Btu content with 4) a predetermined dynamic set point, and fuel added to the plant gas based on the larger fuel requirement of these first and second comparisons.12-24-2009
20090142717Metering combustion control - Metering combustion control in a fired equipment is disclosed in which both the fuel flow rate and the combustion air flow rate are metered in a desired ratio corresponding to a master firing rate demand, and the master firing rate demand combustion air flow directed to the combustion air regulating element is trimmed in response to an error based correction adjustment determined from the respective values of the fuel flow meter and combustion air flow meter input signals to drive the ratio between the fuel flow rate and the combustion air flow rate toward the desired ratio for controlling the combustion in accordance with the master firing rate demand.06-04-2009
20080213709GAS SUPPLY COUPLING FOR A WATER HEATER - A gas supply coupling and method of assembly for the delivery of combustion gases to a combustion chamber of a heating device includes a crimp ring which provides a metal-to-metal seal between the gas supply tube and the gas supply line.09-04-2008
20080213710COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A forced air furnace may include a pneumatically modulated gas valve that is configured to provide gas to a burner. A pneumatic sampling device may be disposed proximate a combustion blower and may be configured to provide the pneumatically modulated gas valve with a first pneumatic signal and a second pneumatic signal that are representative of fluid flow through the pneumatic sampling device. The pneumatically modulated gas valve may regulate gas flow in accordance with the first and second pneumatic signals. In some cases, the pneumatic sampling device may include a restriction, a first pressure port disposed upstream of the restriction and a second pressure port disposed downstream of the restriction. The first and second pressure ports may provide the first and second pneumatic signals to the pneumatically modulated gas valve.09-04-2008
20110053102SOLID FUEL BURNER, COMBUSTION APPARATUS USING SOLID FUEL BURNER, AND METHOD OF OPERATING THE COMBUSTION APPARATUS - An air nozzle provided on the outer side of a fuel nozzle of a solid fuel burner is divided into a plurality of regions, and has means for regulating air flow rates in nozzles divided in the upper and lower direction. The nozzles (regions) are connected to only the nozzle wall and have obstacles in the circumferential direction, dividing the inside of the nozzle into a plurality of regions, and by changing air flow rates in the respective regions in the outermost peripheral air nozzle, a deviation in momentum is caused in the vertical direction of the burner, a flame forming position is changed, and a combustion gas temperature at the furnace outlet, temperatures of a heat transfer tube installed on the furnace wall surface and a fluid flowing in the heat transfer tube or temperatures of heat transfer tubes provided in the furnace and a flue on the downstream side and temperatures of fluids flowing in the heat transfer tubes are controlled to be constant.03-03-2011
20100330513DUAL FUEL HEATING SOURCE - A dual fuel heating source can have a fuel selector valve for selecting between a first fuel and a second fuel different from the first. The dual fuel heating source may selectively have a regulator unit, and an outlet valve. The regulator unit can be configured to regulate the pressure of two different fuels. The outlet valve can be connected to the fuel selector valve such that selecting a fuel can determine the path fuel will flow through the outlet valve and also out of the heating source.12-30-2010
20100330512MULTI-BOILER AND CONTROL METHOD THEREOF FOR PREVENTING BACK FLOW OF EXHAUST GAS - The present invention relates to a control method of preventing backflow of exhaust gas of a multiboiler that is composed of a plurality of boilers connected in a line, each of which includes a wind pressure sensor measuring wind pressure of air flowing into a combustion chamber and a controller controlling the number of revolutions of a fan supplying air into the combustion chamber on the basis of the wind pressure measured by the wind pressure sensor, and in which any one of the controllers is set as a master controller and the other controllers are set as slave controllers and the master controller and the slave controllers are connected by a communication line to communicate with each other, and the control method includes: measuring wind pressures of air flowing into the combustion chambers using the wind pressure sensors in the controller of boilers that are in operation; and calculating the average wind pressure of the boilers that are in operation in response to information about the wind pressures measured by the controllers of the boilers that are in operation, using the master controller, determining the control amount of wind of the fans of boilers that are not in operation on the basis of the average wind pressure, and then operating the fan of the boilers that are not in operation on the basis of the determined results. According to the method, it is possible to provide a multi-boiler or a multi-water heater that does not generate additional cost for installing the dampers are not needed and does not substantially breakdown due even though it is used for a long period of time, thereby saving cost for maintenance.12-30-2010
20110076628COMBUSTOR - This invention is directed to supply a combustor having a structure that reduces NOx emissions while maintaining combustion stability. The combustor has a chamber into which fuel and air are supplied. An air hole plate having a plurality of air holes upstream of the chamber is also disclosed, and fuel nozzles supplying fuel to the air holes of the air hole plate are further disclosed. In the combustor, a center of a chamber-side of the air hole plate is closer to the chamber than exits of outermost peripheral air holes.03-31-2011
20110076627HEATER APPARATUS - A portable heater includes a housing having an access door providing for receiving a fuel tank within the housing. The access door provides for insertion and removal of the fuel tank through the door. A burner within the housing is connected to the fuel tank and emits a flame above the housing. A vertical transparent tube extends above the burner and encompasses the flame along an entire height of the tube. A protective grill surrounds the tube and extends at least as far as the top of the protective grill. An upper cover assembly mounts to the top of the protective grill. The flame is enclosed extending up the tube along the entire height of the tube and creates a glowing vertical element from the housing to the cover.03-31-2011
20110111353BURNER AND IGNITION ASSEMBLY AND METHOD - A burner and ignition assembly, and method include a burner unit, an air intake, and a fuel supply supplying gas and including an air intake. The amount of air entering the air intake can be controlled by momentarily adjusting a choke that is movable relative to the air intake to cover a portion of an opening of the air intake to reduce an amount of air entering the air intake when a cold start condition exists.05-12-2011
20110027730COMBUSTION ACCELERATOR FOR ENGINES AND BURNER - Described is an invention for the catalytic acceleration of combustion processes of fuels and heating oils, comprising dimensionally stable, tin-containing elements in a flow vessel for the production of tin organic compounds in the form of a flow vessel having an alloy structure or pads in a fuel filter container or another container, which due to the composition and ignition thereof during the appearance of light result in ignition or a flame having an extremely fast ignition distribution, therefore avoiding soot and lowering the nitrogen oxide concentrations.02-03-2011
20120301835METHOD AND DEVICE FOR DILUTED COMBUSTION - A burner for diluted combustion includes a fuel nozzle for supplying fuel to a combustion chamber, at least one air nozzle for supplying air to the combustion chamber, and at least one oxygen nozzle for supplying oxygen to the combustion chamber. The air nozzle and oxygen nozzle are spatially separated from each other.11-29-2012
20100173253METHOD FOR OPERATING A COMBUSTION DEVICE, AND COMBUSTION DEVICE FOR CARRYING OUT THE METHOD - A combustion device (07-08-2010
20120003594SYSTEM AND PROCESS FOR THE PYROLYSATION AND GASIFICATION OF ORGANIC SUBSTANCES - A system is described for the pyrolysation and gasification of organic substances, in particular biomasses, comprising in cascade at least one evaporation module, at least one pyrolysis reactor and at least one gassing device, such evaporation module being supplied with the organic substance, to be dried and then be transferred through first supplying means in such pyrolysis reactor to be subjected to a pyrolysis process for producing at least one pyrolysis fuel syngas and remaining organic products, the remaining organic products being then transferred through second supplying means to such gassing device to produce at least one gasification fuel syngas, further comprising first channelling means for such pyrolysis fuel syngas and such gasification fuel syngas from such pyrolysis reactor to at least one energy user, second channelling means of burnt exhaust gases produced by such energy user towards such evaporation module, and third channelling means of such gasification fuel syngas from such gassing device to such pyrolysis module. A process is further described for the pyrolysation and gasification of organic substances through such system.01-05-2012
20120009533MULTI-OUTPUT VALVE AND BURNER USEFUL TO PROMOTE NON-STATIONARY FLAME - A valve useful in distributing gas received in one inlet to several outlets in a sequence, and burner apparatus including this valve for feeding material in sequence to outlets of a burner thereby forming a non-stationary flame at the burner.01-12-2012
20120009534METHOD FOR FEEDING HOT GAS TO A SHAFT FURNACE - The present invention proposes a method for feeding hot gas to a shaft furnace (01-12-2012
20120208135SYSTEM AND METHOD FOR OPERATING A COMBUSTOR - A system for operating a combustor includes a nozzle and a fuel passage and diluent passage through the nozzle. A fuel supply is in fluid communication with the fuel inlet, and a diluent supply is in fluid communication with the diluent inlet and the fuel inlet. A method for operating a combustor includes flowing a fuel through a fuel inlet in a nozzle and flowing a diluent through a diluent inlet in the nozzle. The method further includes sensing an operating parameter of the combustor, generating a signal reflective of the operating parameter, and controlling a flow of at least one of air or diluent to the fuel inlet based on the signal reflective of the operating parameter.08-16-2012
20120208138RADIANT HEATING ASSEMBLY AND METHOD OF OPERATING THE RADIANT HEATING ASSEMBLY - A radiant heating assembly includes a fuel valve and a blower. A controller is configured to control the fuel valve and the blower according to one of a plurality of algorithms corresponding to one of a plurality of selectable modulation modes. An interface is in communication with the controller. One of the plurality of selectable modulation modes is selectable from the interface. The controller modulates at least one of the fuel valve and the blower according to the one of the plurality of algorithms corresponding to the one of the plurality of selectable modulation modes selected from the interface.08-16-2012
20120208136SYSTEM AND METHOD FOR OPERATING A COMBUSTOR - A system for operating a combustor includes a nozzle and a fuel passage and air passage through the nozzle. A fuel supply is in fluid communication with the fuel inlet, and an air supply is in fluid communication with the air inlet and the fuel inlet. A method for operating a combustor includes flowing a fuel through a fuel inlet in a nozzle and flowing air through an air inlet in the nozzle. The method further includes sensing an operating parameter of the combustor, generating a signal reflective of the operating parameter, and controlling a flow of at least one of air or diluent to the fuel inlet based on the signal reflective of the operating parameter.08-16-2012
20120058439DEVICE FOR THE CALIBRATION OF A GAS BURNER REGULATING SYSTEM - Method for the calibration of a gas burner regulating system using a sensor (03-08-2012
20120058438Method and Device for Optimizing Combustion in a Power Plant - Methods and devices for optimizing combustion of fuel in a combustion chamber of a power plant are provided. A real concentration distribution of a material and/or a real temperature distribution in the combustion chamber is measured in at least one dimension. The real concentration distribution and/or temperature distribution is evaluated and a combustion of fuel is controlled such that a symmetric concentration distribution and/or temperature distribution in the at least one dimension arises. During the evaluation at least one characteristic of the symmetry of the real concentration distribution and/or temperature distribution is determined, and during the controlling at least one control parameter is changed depending on the at least one characteristic.03-08-2012
20120064465Combustion apparatus and methods - A combustion apparatus is described having a generally elongated combustion container with a longitudinal axis, a proximal end, an exhaust end spaced axially forward from the proximal end, a proximal end wall, an exhaust end wall, and an all-around sidewall extending between the end walls and about the longitudinal axis. The end walls and sidewall substantially define a combustion chamber. The apparatus also includes a combustion chamber exhaust positioned on the exhaust end, a fuel-air delivery system positioned to direct fuel into the combustion chamber, and an air inlet located generally tangentially on the sidewall to direct air flow generally tangentially into the chamber and induce swirl about the longitudinal axis.03-15-2012
20120208137SYSTEM AND METHOD FOR OPERATING A COMBUSTOR - A system for operating a combustor includes a nozzle and a fuel passage and diluent passage through the nozzle. A fuel supply is in fluid communication with the fuel inlet and the diluent inlet, and a diluent supply is in fluid communication with the diluent inlet. A method for operating a combustor includes flowing a fuel through a fuel inlet in a nozzle and flowing a diluent through a diluent inlet in the nozzle. The method further includes sensing an operating parameter of the combustor, generating a signal reflective of the operating parameter, and controlling a flow of the fuel to the diluent inlet based on the signal reflective of the operating parameter.08-16-2012
20090029300Method, system and apparatus for firing control - Disclosed herein is a method of controlling the air to fuel ratio in a burner containing a venturi assembly. The venturi includes an air inlet, a primary fuel inlet with a converging section, a throat portion downstream from the converging section, a diverging section downstream from the throat portion, an outlet, and a secondary gas inlet disposed downstream from the converging section and upstream from the outlet. The method comprises introducing fuel into the fuel inlet, receiving air through the air inlet by inspiration, and feeding a gas through the secondary gas inlet, the flow rate and content of the gas fed through the secondary gas inlet being selected to result in a desired air to fuel ratio through the outlet. A method of firing a heater, a burner, a furnace and firing control systems also are disclosed.01-29-2009
20110104624METHOD AND APPARATUS OF CONTROLLING COMBUSTION IN OXYFUEL COMBUSTION BOILER - A method and an apparatus of controlling combustion in an oxyfuel combustion boiler are provided which ensure a sufficient furnace heat absorption through prevention of lowering of flame temperature, enabling oxyfuel combustion operations to be performed in a stable manner. A boiler-brought-in oxygen density which is an oxygen density for a total amount of gases introduced into a coal burning boiler is calculated and a flow rate of total recirculating gases is controlled such that the boiler-brought-in oxygen density falls within a predetermined range.05-05-2011
20120122043COMBUSTION CHAMBER AND METHOD FOR DAMPING PULSATIONS - A combustion chamber is provided and includes a combustion device and a supply circuit arranged to feed fuel at a plurality of locations of the combustion device. The supply circuit includes manifolds collecting fuel to be distributed among at least some of the locations, ducts extending from the manifolds and feeding the locations. Some of the ducts carry valves having a plurality of predetermined working positions, each working position corresponding to a different fuel flow through the valve.05-17-2012
20120122042METHOD AND ASSEMBLY FOR IMPROVING THE DYNAMIC BEHAVIOR OF A COAL-FIRED POWER PLANT - The invention relates to a method for improving the dynamic behavior of a coal-fired power plant for primary and/or secondary requirements of the power grid operator with respect to the current output into the grid, wherein the power plant has a nominal output (RC) and is operated by way of firing, wherein upon an increase in the primary and/or secondary requirements of the power grid operator with respect to the current output into the grid the coal dust volume that is supplied is raised with respect to the present actual output, and wherein upon a decrease in the primary and/or secondary requirements of the power grid operator with respect to the current output into the grid the coal dust volume that is supplied is lowered with respect to the present actual output and is stored, and to an assembly for carrying out the method.05-17-2012
20120129113SYSTEM AND METHOD OF MANAGING ENERGY UTILIZED IN A FLUE GAS PROCESSING SYSTEM - A method for managing an amount of energy utilized by a carbon dioxide capture system that includes providing a fuel and a feed stream including oxygen to a combustion system. The feed stream includes a portion of a flue gas stream generated upon combustion of the fuel in the combustion system. The flue gas stream is subjected to a carbon dioxide capture system to remove carbon dioxide therefrom and an amount of at least one of an oxygen stream or the portion of the flue gas stream introduced to the feed stream is adjusted such that the feed stream maintains an oxygen concentration in a range of between 10% to 90% by volume and the carbon dioxide capture system operates at an energy load between about 1.4 GJ/ton of carbon dioxide and about 3.0 GJ/ton of carbon dioxide.05-24-2012
20100209859APPARATUS AND METHOD FOR SUPPLYING HYDROGEN GAS, AND QUARTZ GLASS MANUFACTURING APPARATUS - There is provided an apparatus for supplying a hydrogen gas to a quartz glass manufacturing apparatus including a burner that generates an oxyhydrogen flame when supplied with the hydrogen gas, where the apparatus includes: a first hydrogen supply system that supplies a hydrogen gas in which isotopes are in equilibrium; a second hydrogen supply system that supplies a hydrogen gas in which isotopes are out of equilibrium; a flow rate control section that includes: a valve that changes a flow rate of the hydrogen gas to be supplied to the burner; a first flow rate measuring section that measures the flow rate of the hydrogen gas to be supplied to the burner by measuring a heat capacity; and a control section that controls the valve in such a manner that a measured value obtained by the first flow rate measuring section approaches a set value input from outside; a second flow rate measuring section that measures the flow rate of the hydrogen gas to be supplied to the burner by measuring a different factor than the heat capacity; and a set value compensating section that compensates the set value by multiplying the set value by a ratio between the measured value obtained by the first flow rate measuring section and a measured value obtained by the second flow rate measuring section.08-19-2010
20120251960High Uniformity Heating - A method includes the steps of operating a regenerative burner in cycles, including a firing cycle in which fuel and combustion air are discharged from the burner into a process chamber, and a nonfiring cycle in which a quantity of gas is withdrawn from the process chamber through a regenerative bed associated with the burner. The method further includes steps of detecting and responding to a temperature that differs from a predetermined temperature at a location in the process chamber. In a first step of responding to the detected temperature, a flue damper system is operated to vary a flow of gas within the process chamber relative to the location of the detected temperature. A second step of responding to the detected temperature reduces the quantity of gas to be withdrawn from the process chamber through the regenerative bed in a subsequent nonfiring cycle.10-04-2012
20100009303STEPPER MOTOR VALVE AND METHOD OF CONTROL - A stepper-motor gas valve control is disclosed that includes a main diaphragm in a chamber that controllably displaces a valve relative to an opening in response to changes in pressure, to adjust fuel flow through the valve. A servo-regulator diaphragm is provided to regulate flow to the main diaphragm, to thereby control the rate of fuel flow. A stepper motor is configured to move in a stepwise manner to displace the servo-regulator diaphragm, to control fluid flow to the main diaphragm. A controller mounted on the stepper-motor regulated gas valve control receives and converts an input control signal from a heating system to a reference value between 0 and 5 volts, and selects a corresponding motor step value. The control responsively moves the stepper-motor in a step wise manner to displace the servo-regulator diaphragm and thereby regulates the rate of fuel flow through the valve.01-14-2010
20100009302BURNER FIRING RATE DETERMINATION FOR MODULATING FURNACE - A modulating furnace having a variable rate burner and a controller is operated at a first burner firing rate for a first period of time, and a higher burner firing rate once the first period of time has expired. In some instances, the burner may be operated only while the controller is receiving a call for heat from a thermostat or the like.01-14-2010
20090061366INTEGRATION OF OXY-FUEL AND AIR-FUEL COMBUSTION - A furnace is heated by a burner that can be selectively operated by either air-fuel or oxy-fuel combustion. The burner comprises a conduit for fuel, a conduit for air, a conduit for oxidant, and control means for regulating flow through the air and oxidant conduits. An air-fuel fired furnace can be modified by addition of the oxidant and fuel conduits and the control means for regulating flow through air and oxidant conduits.03-05-2009
20100291493PREHEATING OF FUEL AND OXIDANT OF OXY-BURNERS, USING COMBUSTION AIR PREHEATING INSTALLATIONS - The invention relates to a combustion method which is performed in a furnace that is equipped with energy recovery means and burners, whereby the heat from the combustion fumes is recovered by energy recovery means and said recovered heat is used in order to heat the air. According to the invention, at least part of the burners performs the combustion of an oxygen-rich comburent and a fuel and at least part of the air heated by the energy recovery means is used to heat the oxygen-rich comburent and/or fuel for the burners.11-18-2010
20090017404STOVETOP/RANGE WARNING AND CONTROL FIRE SAFETY SYSTEM - In a stove (01-15-2009
20090017403Method for setting the air ratio on a firing device and a firing device - The temperature generated by a firing apparatus, particularly a gas burner, depends on the mixing ratio between the quantity of air and the quantity of gas fed to the firing apparatus, characterized by the excess air coefficient λ, at a predefined burner load (air mass flow rate) in such a way that the temperature generated by the firing apparatus reaches a maximum when λ=1. According to the inventive method for adjusting the excess air coefficient, said maximum temperature T01-15-2009
20110123939Method of Controlling a Combustion Facility Using a Combination of Coefficient of Resistance and Flame Front Estimation - The present invention relates to a method of controlling at least one parameter (05-26-2011
20110003260METHOD AND A DEVICE FOR CONTROLLING THE FEED OF A COMBUSTIBLE GAS TO A BURNER APPARATUS - A method is provided for controlling the feed of a combustible gas by a valve device placed in a feed pipe which has a gas inlet section and a gas outlet section. The device includes a valve seat in the pipe associated with a membrane-operated plug and a device for returning the plug to a position in which the valve seat is shut off. The method includes the steps of creating a pressure difference in a section of the pipe downstream of the plug with respect to the direction of flow, by a constriction in the pipe having a predetermined cross section, the pressure difference being defined by a first pressure upstream of the constriction and a second pressure downstream of the constriction; collecting the signal formed by the second pressure downstream of the constriction and making the second pressure act on the side of the membrane opposite that on which the first pressure acts; and generating a regulatable load on the membrane of the membrane operating system.01-06-2011
20110039217METHOD AND GAS REGULATOR FITTING FOR MONITORING THE IGNITION OF A GAS DEVICE - A method and a gas regulator fitting for monitoring the ignition of a gas appliance in which the danger of the accumulation of an increased amount of unburned gas in a combustion chamber before the ignition of a main burner (02-17-2011
20110039216PROCESS FOR CONTROLLING THE ADDITION OF AN AUXILIARY FUEL - The invention relates to a process for controlling the addition of an auxiliary fuel to combustion of at least one combustible material in a combustion chamber. In addition, the invention relates to the use of the process, in which the concentration is measured in the flue gas of at least one pollutant formed by incomplete combustion. In a second step, the rate of the auxiliary fuel fed to the combustion is increased when the concentration of the at least one pollutant in the flue gas exceeds a predetermined upper limiting value, or is decreased when the concentration measured of the at least one pollutant falls below a predetermined lower limiting value. Measurement of the concentration and setting the rate of the auxiliary fuel is repeated until the measured concentration of the at least one pollutant in the flue gas is in a range between the lower and upper limiting values.02-17-2011
20110045420BURNER MONITOR AND CONTROL - A monitoring and control apparatus (02-24-2011
20120270162COMBUSTION CONTROL SYSTEM - A combustion control system, including a first set of sensors for generating sample data including data representing a sequence of detected images of different samples of a fuel made up of solid particles; a fuel analysis module for controlling a processor of a computing device to: (i) determine attributes for one or more predetermined physical characteristics of the particles in each said sample based on the sample data, and (ii) generate an index value for each said sample based on said attributes, said index value representing a level of combustibility of the particles in each said sample; and a combustion control module for controlling a processor of a computing device to adjust one or more parameters for controlling a combustion process based on changes to said index value over time.10-25-2012
20110159448FUEL SYSTEM AND PROCESS FOR ITS PRODUCTION - The present invention relates to a fuel system and to a process for the production of such a fuel system. The fuel System according to the present invention consists of at least two different fossil regular fuels and at least one biogenic carbon carrier, wherein the amount of the biogenic carbon carrier is at least 20% with respect to the total mass. Thus the emission of the carbon dioxide based on fossil carbon is notably reduced during the use of the fuel system according to the invention.06-30-2011
20120100493ASSURED COMPLIANCE MODE OF OPERATING A COMBUSTION SYSTEM - A combustion system is operated with reference to compliant values of a governmentally regulated exhaust emission parameter. If an alarm condition is detected during an ordinary mode of operation, the combustion system is shifted into an assured compliance mode of operation. The shift to the assured compliance mode is made while continuing to operate the combustion system without a shut-down interruption.04-26-2012
20120100492LOCKOUT SYSTEM FOR SURFACE BURNERS OF A COOKING APPLIANCE - A lockout control system for a cooktop appliance having a surface heating unit includes a controller coupled to the cooktop, a lockout device coupled to the controller, a surface burner state switch coupled between the controller and the lockout device, the surface burner state switch configured to prevent operation of the lockout device when the surface heating unit is enabled.04-26-2012
20130171575GRATE BAR FOR A FURNACE COMPRISING ENGAGING MEANS - The present application discloses a grate bar for a thrust grate of a furnace. The grate bar comprises an elongated recess (07-04-2013
20080227040Method and Installation for Unsupported Lean Fuel Gas Combustion, Using a Burner and Related Burner - The invention concerns a method for a lean gas combustion using at least one burner including a combustion nozzle on a central axis (x). The method includes creating a mixture of fuel gas and combustion air rotating about the central axis, and ejecting a flow of non-flammable premix containing a mixture of premix air and fuel gas in front of the combustion nozzle. A complementary flow achieves a non-flammability threshold of the mixture in front of the combustion nozzle, the flow being ejected at the center of the premix flow via a central complementary flow and/or about the premix flow via a peripheral complementary flow. The invention also concerns a burner configured to implement the method and a combustion installation using same.09-18-2008
20080220383COMBUSTION METHOD AND APPARATUS - A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports.09-11-2008
20130177859Electric Blower Operable to Provide Combustion Air to a Fire - A blower for use to accelerate combustion by providing additional air to a fire (e.g., to assist in the lighting of a fire). The blower may include a cylindrical housing having an inlet opening and an outlet opening with a bore extending therebetween. A fan assembly and power source may be disposed in the bore and be operable to induce air flow through the bore. Air exiting the outlet opening may travel in a direction substantially parallel with a central axis of the cylindrical housing. The blower may be supported by an infinitely adjustable flexible member that may be manipulated to position the blower with respect to the fire to provide outlet air to the fire.07-11-2013
20110269082GAS PRESSURE CONTROL FOR WARM AIR FURNACES - Systems, methods, and controllers for controlling gas-fired appliances such as warm air furnaces are disclosed. An illustrative furnace system can include a burner unit in communication with a combustion air flow conduit and heat exchanger, a variable speed inducer fan or blower adapted to provide a flow of combustion air to the burner unit, a furnace controller and motor speed control unit adapted to regulate the speed of the inducer fan or blower, and a pneumatically modulated gas valve adapted to variably output gas pressure to the burner unit based at least in part on the combustion air flow.11-03-2011
20130137052NON-CATALYTIC BIOMASS FUEL BURNER AND METHOD - The present invention relates to a non-catalytic biomass burner that may be used to burn a variety of fuel types at high efficiencies. The burner may include a cylindrical combustion chamber with an auxiliary igniter to heat the fuel in the combustion chamber until desirable combustion temperatures are reached. Fuel may be added to the chamber via a fuel feed assembly, and the rate of fuel addition to the chamber by the fuel feed assembly may be controlled by a computer. A fan located on the distal side of a flue pipe from the chamber may also be provided that pulls air into the chamber through one or more air inlets that are designed to encourage cyclonic air and exhaust flow in the chamber. Methods are further provided for controlling the manner of operation of the burner by a computer that may be instructed by a computer program code.05-30-2013
20130115563METHOD FOR OPERATING A GAS BURNER - Method for operating a gas burner, wherein a gas/combustion air mixture is fed to the gas burner for combusting in said gas burner in such a way that a combustion air flow, which is inducted by a fan, is mixed with a gas flow and the resulting gas/combustion air mixture is fed to the gas burner, wherein to this end a control device, on the basis of a control deviation between an actual value, which is recorded by a sensor providing an electrical or electronic measurement signal and acting on a gas line which carries the gas flow, and a corresponding reference value, determines a manipulated variable for a gas valve which influences the gas flow, wherein the gas valve is adjusted in dependence upon this manipulated variable in order to make available to the gas burner the gas/combustion air mixture with a desired gas/combustion air ratio, and wherein the control device alters the gas/combustion air ratio of the gas/combustion air mixture in dependence upon a rotational speed of the fan in such a way that at relatively low rotational speeds of the fan in comparison to relatively high rotational speeds of the fan the gas proportion is reduced in relation to the air proportion so that the gas/combustion air ratio becomes leaner in gas.05-09-2013
20110223548OXYGEN TRIM CONTROLLER TUNING DURING COMBUSTION SYSTEM COMMISSIONING - A method is provided for tuning an oxygen trim controller during the commissioning of a combustion control system for controlling operation of a boiler combustion system, rather than tuning the oxygen trim controller after the commissioning process has been completed.09-15-2011
20130149651STANDALONE FLAME EFFECT - The invention provides systems and methods for standalone flame effects. Various aspects of the invention described herein may be applied to any of the particular applications set forth below or for any other types of fire displays. A flame effect may include a local fuel source, a burner configured to receive a flammable fuel from the fuel source, a local power source, and a wireless communication module in electrical communication with the local power source. The location of one or more flame effects may be automatically determined, and may be used in creating a desired fire display.06-13-2013
20100316966Burner arrangement for a combustion system for combusting liquid fuels and method for operating such a burner arrangement - A burner arrangement for a combustion system for combusting liquid fuels including a burner hub, at least one air supply channel and at least one fuel supply channel for each fuel type is provided. The at least one fuel supply channel is embodied at least partially in the burner hub, with a flow divider arranged in at least one fuel supply channel, which is distanced from the wall of the fuel supply channel so that an interspace associated with the flow path of the fuel flowing through the fuel supply channel is formed between the wall of the fuel supply channel and the flow divider. A method for operating such a burner arrangement is also provided.12-16-2010
20100316965DEVICE AND METHOD FOR STABILIZING THE PRESSURE AND THE FLOW OF A GASEOUS MIXTURE SUPPLIED TO A SURFACE-COMBUSTION CYLINDRICAL BURNER - The invention relates to a gas burner comprising a perforated cylindrical wall used as a combustion surface, a bottom wall and an inlet opening through which a combustible gaseous mixture is fed inside the burner. The stabilisation device consists of a grid (12-16-2010
20100316964SOLIDS FLOW METER FOR INTEGRATED BOILER CONTROL SYSTEM - A combustion control system [12-16-2010
20100316963METHOD FOR PREVENTING COAGULATION IN EXHAUST PIPE OF BOILER - A method for preventing coagulation in an exhaust pipe of a boiler is provided. The method includes proportionally controlling combustion based on a quantity of supplied fuel with respect to an amount of air supplied to a burner, determining whether to enhance a heating power of a burner, based on a temperature of ambient air introduced into a blower, the temperature of the ambient air being sensed by an air temperature sensor, and enhancing the heating power of the burner to increase a temperature of exhaust gas, when it is determined that the sensed temperature is equal to or lower than a predetermined temperature.12-16-2010
20120282559AUTOMATIC FUELING OF LIQUID FUEL BURNERS - An assembly for creating a fire display from a liquid fuel comprises a fuel receiving reservoir connected to a burner by a conduit, the conduit providing a flow channel for a liquid fuel from the reservoir to the burner. When a container of liquid fuel is placed in a bottle receiving tray the fuel is dispensed into the reservoir and in turn flows into the burner. Flammable vapors over the liquid fuel in the burner can then be ignited. The arrangement provides a continuous feed of fuel to the burner and allows safe replacement of the fuel container and replenishment of the fuel in the burner while the flame is present.11-08-2012
20130122437COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR - A combustor includes an end cap having an upstream surface axially separated from a downstream surface. A casing circumferentially surrounds at least a portion of the end cap to define an annular passage. A first tube bundle extends from the upstream surface through the downstream surface to provide fluid communication through the end cap. A first fuel conduit is in fluid communication with the first tube bundle to supply fuel through the annular passage to the first tube bundle, and a liquid fuel supply is in fluid communication with the first tube bundle through the first fuel conduit. A method for supplying fuel to a combustor includes flowing a working fluid through a first tube bundle and flowing a liquid fuel through an annular passage surrounding the end cap and into the first tube bundle.05-16-2013
20130122433Smart Firing Control in a Rankine Cycle Power Plant - A multivariable control system for controlling boiler burners. The system comprises burner actuators, boiler sensors, a control system coupled to the actuators and the sensors and comprising a memory and a processor, and an application stored in the memory. When executed by the processor, the application executes a multivariable control algorithm to determine actuator manipulated variable values to control in part the burners based on data received from the sensors and based on a plurality of gain values. The application also executes an adaptation algorithm to change an actuator manipulated variable value, to maintain the changed manipulated variable value for a pre-determined period of time, to determine a change in data received from the sensors, to determine a gain value based on the changed manipulated variable value and the change in data received from the sensors, and to provide the determined gain value to the multivariable control algorithm.05-16-2013
20110311923Induced-Draft Burner With Isolated Gas-Air Mixing - A furnace with a burner is disclosed. The burner may include an area expansion plenum, a burner tube, a heat exchanger, a gas valve, an igniter, and an induced-draft blower. The gas valve may meter gas into the area expansion plenum, while the induced-draft blower may draw air into the area expansion plenum, wherein air and gas may mix to produce a lean gas/air mixture. The lean gas/air mixture may then be pulled through the burner tube and into the heat exchanger. Within the heat exchanger, the lean gas/air mixture may be ignited and energy may be produced, exciting acoustic energy in the heat exchanger. The acoustic energy may be distributed out of the heat exchanger by the area expansion plenum. In order to distribute the acoustic energy, the cross sectional area of the area expansion plenum may be greater than the cross sectional area of the burner tube.12-22-2011
20130189630Fuel Oil Combustion and Energy Saving Method and Burner Thereof - The present invention relates to a method and a device with fuel for combustion that is used in the sectors of industry, canteen and power plant, in particular, it relates to an energy-saving, efficient and environment-friendly fuel-combustion method and device. The combustion method is: 1) it contains an input port let the fuel enter into the furnace where the fuel is ignited to bring forth the incomplete combustion: 2) it contains another input port for adding the supplementary fuel to the furnace, which is mixed with the early-coming fuel that is burning to bring forth the complete combustion, 3) so the burning fuel experiences the phenomenon of cracking, gasification and expansion, but it is restrained in the boiler for compression, resulting in the fusion reaction for the purpose of perfect combustion; 4) Synchronized with the above steps, the air taken from the furnace side wall is mixed with the burning fuel in the furnace, which makes the heat generated in the furnace erupt due to the combustion. The present invention also discloses a method of a burner. The burner allows fuel combustion in the boiler to bring forth continuous repeated cracking, differentiation, gasification, expansion and compression, so the fuel molecules experience fusion reaction to release heat completely without release of thermal radiation, meanwhile, it significantly reduces the generation of all kinds of harmful gases.07-25-2013
20120015311BURNER FOR A GAS COMBUSTOR AND A METHOD OF OPERATING THE BURNER THEREOF - A burner for a gas combustor and a method of operating the burner are disclosed. The burner includes a front surface area divided into a plurality of subareas and inlets arranged on the front surface area such that each subarea is encircled by at least four inlets and such that during operation of the burner, a gas recirculation in the combustor is facilitated corresponding to each subarea.01-19-2012
20120088199APPARATUS AND METHOD FOR IMPROVED IGNITION OF A GASEOUS FUEL BURNER IN AN APPLIANCE - A method and apparatus for improved ignition of a gaseous fuel in an appliance is provided. More particularly, the shielding of an igniter and the use of thermal convection to direct a flow of gaseous fuel and air across a hot surface of the igniter in order to create proper conditions for the ignition of the gaseous fuel is described.04-12-2012

Patent applications in class Controlling or proportioning feed