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Title: Device to lower NOx in a gas turbine engine combustion system

Patent ·
OSTI ID:1171103

An emissions control system for a gas turbine engine including a flow-directing structure (24) that delivers combustion gases (22) from a burner (32) to a turbine. The emissions control system includes: a conduit (48) configured to establish fluid communication between compressed air (22) and the combustion gases within the flow-directing structure (24). The compressed air (22) is disposed at a location upstream of a combustor head-end and exhibits an intermediate static pressure less than a static pressure of the combustion gases within the combustor (14). During operation of the gas turbine engine a pressure difference between the intermediate static pressure and a static pressure of the combustion gases within the flow-directing structure (24) is effective to generate a fluid flow through the conduit (48).

Research Organization:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,959,888
Application Number:
13/305,120
OSTI ID:
1171103
Resource Relation:
Patent File Date: 2011 Nov 28
Country of Publication:
United States
Language:
English

References (10)

Turbine engine with exhaust gas recirculation patent June 1981
Method of starting gas turbine plant patent August 1987
Method and apparatus for burning nitrogen-containing fuels patent January 1988
Venturi bypass exhaust gas recirculation system patent June 2002
Gas turbine having exhaust recirculation patent December 2007
Combustion transition duct providing stage 1 tangential turning for turbine engines patent May 2010
Transition with a linear flow path with exhaust mouths for use in a gas turbine engine patent-application February 2010
Modular Transvane Assembly patent-application April 2010
Systems and Methods for Gas Turbine Combustors patent-application January 2011
Hot EGR Driven by Turbomachinery patent-application December 2013

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