公开(公告)号：US12072097B2

公开(公告)日：2024-08-27

申请号：US17451932

申请日：2021-10-22

Applicant: Honeywell International Inc.

Inventor： Kurt Kraus ,  Stefano Bietto

IPC: F23N1/00 ,  F23D14/22 ,  F23D14/48

CPC classification number: F23N1/002 ,  F23D14/22 ,  F23D14/48 ,  F23D2209/20 ,  F23D2900/14002 ,  F23K2900/05004 ,  F23N2235/16 ,  F23N2235/24

Abstract: A burner apparatus and process are described. The burner apparatus includes an inlet chamber in communication with a combustion chamber. A primary conduit delivers fuel gas to the combustion chamber. Each of a plurality of primary tips is located in the throat of the burner tile. Each of a plurality of cavities is disposed on a downstream wall of the burner tile and stabilize the flame. The primary tips have an end port and a lateral port. A secondary conduit provides fuel gas to a plurality of secondary tips. In a passive control mode, the fuel gas to the primary tips and secondary tips is a mixed gas comprising flue gas and fuel gas. In an active mode, valves are provided to proportion the amount of fuel gas fed to the primary tips and the amount of flue gas provided to the secondary tips.

公开(公告)号：US12044641B2

公开(公告)日：2024-07-23

申请号：US17325876

申请日：2021-05-20

Applicant: Baker Hughes Oilfield Operations LLC

Inventor： Chong Tao ,  Aniruddha Weling ,  Lei Sui ,  Anthony Kowal ,  Michael Muller

IPC: G06F11/30 ,  F01N11/00 ,  F23G5/50 ,  F23N1/00 ,  F23N1/08 ,  F23N5/18 ,  G01J5/00 ,  G01N25/20 ,  G01N25/22 ,  G01N25/28 ,  G05B13/02 ,  G05B13/04 ,  F23G7/08 ,  G01N21/84

CPC classification number: G01N25/22 ,  F01N11/00 ,  F23G5/50 ,  F23N1/002 ,  F23N1/082 ,  F23N5/18 ,  G01J5/0018 ,  G01N25/20 ,  G01N25/28 ,  G05B13/0265 ,  G05B13/042 ,  F23G7/08 ,  F23N2223/08 ,  F23N2223/48 ,  F23N2235/12 ,  F23N2241/12 ,  G01N2021/8411 ,  G01N2021/8416

Abstract: Systems and methods for monitoring emissions of a combusted gas are provided. The method includes determining a first net heating value of a flare gas. The method also includes determining a second net heating value of a combustion gas including the flare gas. The second net heating value can be determined based upon the first net heating value and a volumetric flow rate of the flare gas. Based upon the value of the second net heating value, an empirical model or a non-parametric machine learning model can be selected. A combustion efficiency of the combustion gas can be determined using the selected model, the second net heating value, and selected ones of the process conditions and the environmental conditions. Total emissions of the combustion mixture can be further determined from the combustion efficiency and a volumetric flow rate of the combustion gas.

公开(公告)号：US20240125474A1

公开(公告)日：2024-04-18

申请号：US17968298

申请日：2022-10-18

Applicant: Haier US Appliance Solutions, Inc.

Inventor： Chad Gettelfinger ,  Matthew Hendrix ,  Andrew Combs

IPC: F23N5/24 ,  F23N1/00

CPC classification number: F23N5/242 ,  F23N1/002 ,  F23N2227/16 ,  F23N2227/30 ,  F23N2227/36 ,  F23N2231/04 ,  F23N2241/08

Abstract: An ignition system for igniting a gas burner of an appliance includes a gas burner, an electric igniter assembly, a pilot light, and a controller. The pilot light is ignitable by the electric igniter assembly. The controller is configured to operate the electric igniter assembly for ignition of the gas burner, detect a power disruption event, ignite the pilot light using the electric igniter assembly in response to detecting the power disruption event, and use the pilot light for ignition of the gas burner during the power disruption event. Methods of operating the ignition system for igniting the gas burner of the appliance are also provided.

公开(公告)号：US20230366542A1

公开(公告)日：2023-11-16

申请号：US18144992

申请日：2023-05-09

Applicant: The Government of the United States of America, as represented by the Secretary of the Navy

Inventor： Clayton Geipel ,  Brian Fisher

IPC: F23N1/00 ,  G01N33/22 ,  F23K3/00 ,  G05D3/12

CPC classification number: F23N1/002 ,  G01N33/222 ,  F23K3/00 ,  G05D3/125 ,  F23N2239/02 ,  F23K2203/202

Abstract: The present invention provides a method and apparatus for controlled burning of experimental solid fuel test strands. The fuel test strand is advanced by a screw attached to a computer-controlled stepper motor. The stepper motor controls the fuel test strand position via a proportional-integral-derivative (PID) control loop, adjusting velocity based on transmission of a diode laser beam located at the desired fuel surface position. This provides real-time monitoring of fuel strand position and fuel regression rate during combustion experiments.

公开(公告)号：US20230220989A1

公开(公告)日：2023-07-13

申请号：US18004525

申请日：2020-07-14

Applicant: SUMITOMO SHI FW ENERGIA OY

Inventor： Ari KETTUNEN ,  Teri HILTUNEN

IPC: F23C10/32 ,  F23N5/24 ,  F23C10/24 ,  F23N1/00

CPC classification number: F23C10/32 ,  F23N5/242 ,  F23C10/24 ,  F23N1/002 ,  F23N2225/06 ,  F23C2206/102 ,  F23C2900/10008

Abstract: A method of preventing blockage of circulating bed material in a circulating fluidized bed reactor includes collecting a continuously flowing bed of solid particles in a gas lock in a return leg of a reactor, measuring gas lock bed pressure values within the bed of the particles, generating a gas lock bed height indication signal on the basis of measured gas lock bed pressure values. A definition stage includes defining and storing to a control system a range of normal gas lock bed height indication signals, formed in normal circulation flow conditions, as a function of the reactor load, and defining and storing to the digital control system a reactor load dependent alarm criterion. The method includes comparing a current gas lock bed height indication signal with the reactor load dependent alarm criterion, and decreasing the reactor load if the current indication signal fulfils the reactor load dependent alarm criterion.

公开(公告)号：US20230144467A1

公开(公告)日：2023-05-11

申请号：US17915352

申请日：2021-03-22

Applicant: Viessmann Climate Solutions SE

Inventor： Eugen GLEIM ,  Marco LINK

IPC: F23N5/24 ,  F23N5/00 ,  F23N1/00 ,  G01N27/417 ,  G01N27/409

CPC classification number: F23N5/242 ,  F23N5/006 ,  F23N1/002 ,  G01N27/4175 ,  G01N27/409 ,  F23N2227/18 ,  F23N2227/20

Abstract: A gas burner comprises an automatic firing unit for regulating or controlling an amount of gas supplied to the gas burner via a gas control valve and a lambda probe (1) arranged in the exhaust gas flow for measuring a residual oxygen content in the exhaust gas. A method for operating the gas burner comprises a first operating state in which the gas burner is operated in standard mode, wherein the residual oxygen content in the exhaust gas is regulated via the measured value of the lambda probe (1). According to the invention, in a second operating state, the gas burner performs a fault test on the lambda probe (1) involving the steps of: deactivating (S18) a supply of power to a pump cell (PZ) of the lambda probe (1); determining a present test voltage (h) of a measurement cell (NZ) of the lambda probe (1); comparing (S25) the present test voltage (h) with a predefined test setpoint voltage (i) and determining a difference; and if the difference exceeds a predefined limit value, performing a safety deactivation (S29); or if the difference does not exceed the predefined limit value, operating the gas burner in the first operating state.

公开(公告)号：US20190242577A1

公开(公告)日：2019-08-08

申请号：US16005325

申请日：2018-06-11

Applicant: TK PRODUCTS, LLC

Inventor： William H. MANN ,  Trent FARRER

IPC: F23N1/00 ,  F23N5/20

CPC classification number: F23N1/002 ,  F23N5/203 ,  F23N2041/11

Abstract: A “flame show” is responsive to an audio input signal such as music. A base unit including an analog base unit controller circuit is arranged to receive an audio input signal and generate an analog control signal that is responsive to the audio input signal. The analog control signal is distributed, by wire or wireless, to one or more flame display units such as a “tiki torch.” Each flame display unit has a fuel source, and a proportional valve for controlling an amount of fuel supplied to a burner. Preferably, the control signal controls a gate terminal of a MOSFET semiconductor device, which in turn is coupled to control current in the proportional valve each each unit. By deploying multiple flame display units, all coupled to the same base unit, all of the flame display units contribute synchronously to the overall flame show.

公开(公告)号：US20180306441A1

公开(公告)日：2018-10-25

申请号：US15495243

申请日：2017-04-24

Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

Inventor： CARL BOZZUTO ,  CARL NEUSCHAEFER

IPC: F23N1/00 ,  F23N5/24 ,  F23N5/18 ,  F23N5/08

CPC classification number: F23N1/002 ,  F23C5/12 ,  F23C5/32 ,  F23C6/047 ,  F23N5/082 ,  F23N5/184 ,  F23N5/242 ,  F23N2005/185 ,  F23N2023/38 ,  F23N2029/04 ,  F23N2029/20 ,  F23N2037/02 ,  F23N2037/04 ,  F23N2037/10 ,  F23N2900/05001

Abstract: A method for operating a combustion chamber is provided. The method includes introducing a fuel into the combustion chamber via a plurality of nozzles, each nozzle having an associated stoichiometry for an output end of the nozzle. The method further includes measuring the stoichiometry of each nozzle via one or more sensors to obtain stoichiometric data, and determining that at least one of a frequency and an amplitude of spectral line fluctuations derived from the stoichiometric data has exceeded a threshold. The method further includes adjusting the stoichiometry of at least one of the nozzles based at least in part on the stoichiometric data so as to maintain a flame stability of the combustion chamber.

公开(公告)号：US10077899B2

公开(公告)日：2018-09-18

申请号：US14763738

申请日：2014-02-14

Applicant: ClearSign Combustion Corporation

Inventor： Douglas W. Karkow ,  Joseph Colannino ,  Igor A. Krichtafovitch ,  Christopher A. Wiklof

IPC: F23L7/00 ,  F23C99/00 ,  F23N5/26 ,  F27D11/06 ,  F23D14/24 ,  F23D14/84 ,  F23N5/00 ,  F23N1/00 ,  F23D14/02 ,  F23D14/74 ,  F23D14/14 ,  F23D11/44 ,  F23D11/02 ,  F23D11/38 ,  F23D11/40 ,  F23C6/04 ,  F23C9/06 ,  F23D14/26 ,  F23N1/02 ,  F23D11/42

CPC classification number: F23C99/001 ,  F23C6/042 ,  F23C9/06 ,  F23C2201/00 ,  F23C2900/00 ,  F23D11/02 ,  F23D11/38 ,  F23D11/383 ,  F23D11/406 ,  F23D11/42 ,  F23D11/446 ,  F23D11/448 ,  F23D14/02 ,  F23D14/14 ,  F23D14/145 ,  F23D14/24 ,  F23D14/26 ,  F23D14/74 ,  F23D14/84 ,  F23D2203/1012 ,  F23D2203/102 ,  F23D2203/1023 ,  F23D2203/104 ,  F23D2203/105 ,  F23D2207/00 ,  F23D2208/10 ,  F23L7/007 ,  F23N1/00 ,  F23N1/002 ,  F23N1/02 ,  F23N5/00 ,  F23N5/10 ,  F23N5/265 ,  F23N2021/00 ,  F23N2027/22 ,  F23N2900/00 ,  F27D11/06 ,  Y02T50/677

Abstract: According to an embodiment, a combustion system is provided, which includes a nozzle configured to emit a diverging fuel flow, a flame holder positioned in the path of the fuel flow and that includes a plurality of apertures extending therethrough, and a preheat mechanism configured to heat the flame to a temperature exceeding a startup temperature threshold.

公开(公告)号：US20180209352A1

公开(公告)日：2018-07-26

申请号：US15325908

申请日：2015-06-08

Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.

Inventor： Yoji ENDO ,  Jotaro NAKAGAWA ,  Yoshiaki OCHIAI

IPC: F02C9/28 ,  F23N1/00 ,  F23N5/16 ,  F23R3/34

CPC classification number: F02C9/28 ,  F23N1/002 ,  F23N5/16 ,  F23N2037/02 ,  F23N2041/20 ,  F23R3/28 ,  F23R3/34 ,  F23R3/346 ,  F23R2900/00013

Abstract: A flow ratio calculation device is provided with: a flow volume ratio computer that, using a predetermined relationship between a first parameter that can express a combustion state in a combustor and a flow volume ratio of fuels flowing through multiple fuel systems, finds a flow volume ratio based on the value of the first parameter; a correction value computer that finds a correction value of the flow volume ratio when the load of a gas turbine changes; a fluctuation sensor that senses fluctuations in a value correlated with the gas turbine load; and a corrector that corrects the flow volume ratio found by the flow volume ratio computer with the correction value found by the correction value computer when a fluctuation in the load correlated value is sensed by the fluctuation sensor.