System and method for reducing combustion dynamics in a combustor

Uhm, Jong Ho; Johnson, Thomas Edward; Zuo, Baifang; York, William David

Title: System and method for reducing combustion dynamics in a combustor

Abstract

A system for reducing combustion dynamics in a combustor includes an end cap having an upstream surface axially separated from a downstream surface, and tube bundles extend from the upstream surface through the downstream surface. A divider inside a tube bundle defines a diluent passage that extends axially through the downstream surface, and a diluent supply in fluid communication with the divider provides diluent flow to the diluent passage. A method for reducing combustion dynamics in a combustor includes flowing a fuel through tube bundles, flowing a diluent through a diluent passage inside a tube bundle, wherein the diluent passage extends axially through at least a portion of the end cap into a combustion chamber, and forming a diluent barrier in the combustion chamber between the tube bundle and at least one other adjacent tube bundle.

Inventors:: Uhm, Jong Ho; Johnson, Thomas Edward; Zuo, Baifang; York, William David

Issue Date:: 2015-09-01

Research Org.:: General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1213462

Patent Number(s):: 9121612

Application Number:: 13/409,309

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 F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C3/30 - Adding water, steam or other fluids {for influencing combustion, e.g. to obtain cleaner exhaust gases

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
F23C2900/07022 - Delaying secondary air introduction into the flame by using a shield or gas curtain

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
F23D14/62 - Mixing devices

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
F23R2900/00013 - Reducing thermo-acoustic vibrations by active means
F23R3/002 - {Wall structures
F23R3/286 - {having fuel-air premixing devices
F23R3/32 - being tubular
F23R3/54 - Reverse-flow combustion chambers

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DOE Contract Number:: FC26-05NT42643

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Mar 01

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Uhm, Jong Ho, Johnson, Thomas Edward, Zuo, Baifang, and York, William David. System and method for reducing combustion dynamics in a combustor.  United States: N. p., 2015. 
        Web.

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                    Uhm, Jong Ho, Johnson, Thomas Edward, Zuo, Baifang, & York, William David. System and method for reducing combustion dynamics in a combustor.  United States.

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                    Uhm, Jong Ho, Johnson, Thomas Edward, Zuo, Baifang, and York, William David. Tue .  
        "System and method for reducing combustion dynamics in a combustor".  United States.  https://www.osti.gov/servlets/purl/1213462.

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@article{osti_1213462,

  title        = {System and method for reducing combustion dynamics in a combustor},

  author       = {Uhm, Jong Ho and Johnson, Thomas Edward and Zuo, Baifang and York, William David},

  abstractNote = {A system for reducing combustion dynamics in a combustor includes an end cap having an upstream surface axially separated from a downstream surface, and tube bundles extend from the upstream surface through the downstream surface. A divider inside a tube bundle defines a diluent passage that extends axially through the downstream surface, and a diluent supply in fluid communication with the divider provides diluent flow to the diluent passage. A method for reducing combustion dynamics in a combustor includes flowing a fuel through tube bundles, flowing a diluent through a diluent passage inside a tube bundle, wherein the diluent passage extends axially through at least a portion of the end cap into a combustion chamber, and forming a diluent barrier in the combustion chamber between the tube bundle and at least one other adjacent tube bundle.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2015},

  month        = {9}

}

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