System and method for reducing combustion dynamics and NO.sub.x in a combustor

Uhm, Jong H.; Johnson, Thomas Edward

Title: System and method for reducing combustion dynamics and NO.sub.x in a combustor

Patent · Fri Nov 20 00:00:00 EST 2015

OSTI ID:1226448

Uhm, Jong H.; Johnson, Thomas Edward

A system for reducing combustion dynamics and NO.sub.x in a combustor includes a tube bundle that extends radially across at least a portion of the combustor, wherein the tube bundle comprises an upstream surface axially separated from a downstream surface. A shroud circumferentially surrounds the upstream and downstream surfaces. A plurality of tubes extends through the tube bundle from the upstream surface through the downstream surface, wherein the downstream surface is stepped to produce tubes having different lengths through the tube bundle. A method for reducing combustion dynamics and NO.sub.x in a combustor includes flowing a working fluid through a plurality of tubes radially arranged between an upstream surface and a downstream surface of an end cap that extends radially across at least a portion of the combustor, wherein the downstream surface is stepped.

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

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42643

Assignee:: GENERAL ELECTRIC COMPANY

Patent Number(s):: 9,188,335

Application Number:: 13/281,528

OSTI ID:: 1226448

Resource Relation:: Patent File Date: 2015 Nov 17

Country of Publication:: United States

Language:: English

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