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Title: Apparatus and method for controlling the secondary injection of fuel

Abstract

A combustor (28) for a gas turbine engine is provided comprising a primary combustion chamber (30) for combusting a first fuel to form a combustion flow stream (50) and a transition piece (32) located downstream from the primary combustion chamber (30). The transition piece (32) comprises a plurality of injectors (66) located around a circumference of the transition piece (32) for injecting a second fuel into the combustion flow stream (50). The injectors (66) are effective to create a radial temperature profile (74) at an exit (58) of the transition piece (32) having a reduced coefficient of variation relative to a radial temperature profile (64) at an inlet (54) of the transition piece (32). Methods for controlling the temperature profile of a secondary injection are also provided.

Inventors:
; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1083474
Patent Number(s):
8387398
Application Number:
12/194,611
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING

Citation Formats

Martin, Scott M., Cai, Weidong, and Harris, Jr., Arthur J. Apparatus and method for controlling the secondary injection of fuel. United States: N. p., 2013. Web.
Martin, Scott M., Cai, Weidong, & Harris, Jr., Arthur J. Apparatus and method for controlling the secondary injection of fuel. United States.
Martin, Scott M., Cai, Weidong, and Harris, Jr., Arthur J. Tue . "Apparatus and method for controlling the secondary injection of fuel". United States. https://www.osti.gov/servlets/purl/1083474.
@article{osti_1083474,
title = {Apparatus and method for controlling the secondary injection of fuel},
author = {Martin, Scott M. and Cai, Weidong and Harris, Jr., Arthur J.},
abstractNote = {A combustor (28) for a gas turbine engine is provided comprising a primary combustion chamber (30) for combusting a first fuel to form a combustion flow stream (50) and a transition piece (32) located downstream from the primary combustion chamber (30). The transition piece (32) comprises a plurality of injectors (66) located around a circumference of the transition piece (32) for injecting a second fuel into the combustion flow stream (50). The injectors (66) are effective to create a radial temperature profile (74) at an exit (58) of the transition piece (32) having a reduced coefficient of variation relative to a radial temperature profile (64) at an inlet (54) of the transition piece (32). Methods for controlling the temperature profile of a secondary injection are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 05 00:00:00 EST 2013},
month = {Tue Mar 05 00:00:00 EST 2013}
}

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