Staged fuel and air injection in combustion systems of gas turbines

Hughes, Michael John; Berry, Jonathan Dwight

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Title: Staged fuel and air injection in combustion systems of gas turbines

Abstract

A gas turbine that includes a working fluid flowpath extending aftward from a forward injector in a combustor. The combustor may include an inner radial wall, an outer radial wall, and, therebetween, a flow annulus. A staged injector may intersect the flow annulus so to attain an injection point within the working fluid flowpath by which aftward and forward annulus sections are defined. Air directing structure may include an aftward intake section that corresponds to the aftward annulus section and a forward intake section that corresponds to the forward annulus section. The air directing structure may be configured to: direct air entering through the aftward intake section through the aftward annulus section in a forward direction to the staged injector; and direct air entering through the forward intake section through the forward annulus section in an aftward direction to the staged injector.

Inventors:: Hughes, Michael John; Berry, Jonathan Dwight

Issue Date:: 2018-05-22

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1444109

Patent Number(s):: 9976487

Application Number:: 14/977,993

Assignee:: General Electric Company (Schenectady, NY)

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

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C3/04 - having a turbine driving a compressor
F02C7/222 - {Fuel flow conduits, e.g. manifolds}

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
F23R2900/03044 - Impingement cooled combustion chamber walls or subassemblies
F23R3/002 - {Wall structures
F23R3/06 - Arrangement of apertures along the flame tube
F23R3/346 - {for staged combustion}

Show less

DOE Contract Number:: FC26-05NT42643

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Dec 22

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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                    Hughes, Michael John, and Berry, Jonathan Dwight. Staged fuel and air injection in combustion systems of gas turbines.  United States: N. p., 2018. 
        Web.

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                    Hughes, Michael John, & Berry, Jonathan Dwight. Staged fuel and air injection in combustion systems of gas turbines.  United States.

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                    Hughes, Michael John, and Berry, Jonathan Dwight. Tue .  
        "Staged fuel and air injection in combustion systems of gas turbines".  United States.  https://www.osti.gov/servlets/purl/1444109.

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@article{osti_1444109,

  title        = {Staged fuel and air injection in combustion systems of gas turbines},

  author       = {Hughes, Michael John and Berry, Jonathan Dwight},

  abstractNote = {A gas turbine that includes a working fluid flowpath extending aftward from a forward injector in a combustor. The combustor may include an inner radial wall, an outer radial wall, and, therebetween, a flow annulus. A staged injector may intersect the flow annulus so to attain an injection point within the working fluid flowpath by which aftward and forward annulus sections are defined. Air directing structure may include an aftward intake section that corresponds to the aftward annulus section and a forward intake section that corresponds to the forward annulus section. The air directing structure may be configured to: direct air entering through the aftward intake section through the aftward annulus section in a forward direction to the staged injector; and direct air entering through the forward intake section through the forward annulus section in an aftward direction to the staged injector.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {5}

}

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