Apparatus and method for combusting low quality fuel

Title: Apparatus and method for combusting low quality fuel

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Abstract

A gas turbine (12) capable of combusting a low quality gaseous fuel having a ratio of flammability limits less than 2, or a heat value below 100 BTU/SCF. A high quality fuel is burned simultaneously with the low quality fuel to eliminate instability in the combustion flame. A sensor (46) is used to monitor at least one parameter of the flame indicative of instability. A controller (50) having the sensor signal (48) as input is programmed to control the relative flow rates of the low quality and high quality fuels. When instability is detected, the flow rate of high quality fuel is automatically increased in relation to the flow rate of low quality fuel to restore stability.

Inventors:: Brushwood, John Samuel; Pillsbury, Paul; Foote, John; Heilos, Andreas

Issue Date:: 2003-11-04

Research Org.:: Siemens Westinghouse Power Corporation, Orlando, FL, (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1174555

Patent Number(s):: 6640548

Application Number:: 09/963,282

Assignee:: Siemens Westinghouse Power Corporation

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C7/236 - Fuel delivery systems comprising two or more pumps

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F05D2220/75 - equipment using fuel having a low calorific value, e.g. low BTU fuel, waste end, syngas, biomass fuel or flare gas
F05D2270/14 - to control thermoacoustic behaviour in the combustion chambers

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D17/08 - responsive to condition of working-fluid, e.g. pressure

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C7/228 - Dividing fuel between various burners

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DOE Contract Number:: FC21-90MC25140

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Brushwood, John Samuel, Pillsbury, Paul, Foote, John, and Heilos, Andreas. Apparatus and method for combusting low quality fuel.  United States: N. p., 2003. 
        Web.

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                    Brushwood, John Samuel, Pillsbury, Paul, Foote, John, & Heilos, Andreas. Apparatus and method for combusting low quality fuel.  United States.

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                    Brushwood, John Samuel, Pillsbury, Paul, Foote, John, and Heilos, Andreas. Tue .  
        "Apparatus and method for combusting low quality fuel".  United States.  https://www.osti.gov/servlets/purl/1174555.

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@article{osti_1174555,

  title        = {Apparatus and method for combusting low quality fuel},

  author       = {Brushwood, John Samuel and Pillsbury, Paul and Foote, John and Heilos, Andreas},

  abstractNote = {A gas turbine (12) capable of combusting a low quality gaseous fuel having a ratio of flammability limits less than 2, or a heat value below 100 BTU/SCF. A high quality fuel is burned simultaneously with the low quality fuel to eliminate instability in the combustion flame. A sensor (46) is used to monitor at least one parameter of the flame indicative of instability. A controller (50) having the sensor signal (48) as input is programmed to control the relative flow rates of the low quality and high quality fuels. When instability is detected, the flow rate of high quality fuel is automatically increased in relation to the flow rate of low quality fuel to restore stability.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {11}

}

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