Apparatus and method for controlling the secondary injection of fuel

Martin, Scott M.; Cai, Weidong; Harris, Jr., Arthur J.

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

Patent · Tue Mar 05 00:00:00 EST 2013

OSTI ID:1083474

Martin, Scott M.; Cai, Weidong; Harris, Jr., Arthur J.

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.

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

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42644

Assignee:: Siemens Energy, Inc. (Orlando, FL)

Patent Number(s):: 8,387,398

Application Number:: 12/194,611

OSTI ID:: 1083474

Country of Publication:: United States

Language:: English

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