公开(公告)号：US20180058334A1

公开(公告)日：2018-03-01

申请号：US15252080

申请日：2016-08-30

Applicant: General Electric Company

Inventor： George Vargese MATHAI ,  Alston Ilford Scipio ,  Sanji Ekanayake ,  Joseph Philip Klosinki ,  Larry William Swanson

IPC: F02C9/20 ,  F01K23/10

CPC classification number: F02C9/20 ,  F01D25/30 ,  F01K13/02 ,  F01K23/10 ,  F01K23/101 ,  Y02E20/16

Abstract: A method to adjust the back pressure applied to an exhaust of a gas turbine, the method including: exhausting hot combustion gas from the gas turbine; passing the hot combustion gas through a heat recovery steam generator; actuating an exhaust gas damper in the stream of the hot combustion gases, wherein actuation moves the exhaust gas damper to a restricted position, and while in the restricted position, the exhaust damper creates a backpressure applied to the exhaust gas, wherein the backpressure reduces an exhaust gas velocity at an exhaust of the gas turbine.