Patent ID: 8015793
Filing Date: 2011-09-13
Classification: F02C,F05D,Y02E

Abstract:
1. A method of heating a fuel for a gas turbine engine, the method comprising: providing a gas turbine engine connected to an exhaust gas stack to the atmosphere; providing an exhaust gas passage including an exhaust gas inlet duct connecting said stack to an exhaust gas to fuel heat exchanger, and an exhaust gas outlet duct connecting said heat exchanger to said stack, said exhaust passage providing a flow of high temperature exhaust gas from said stack to said heat exchanger and back to said stack; closing a first damper at said exhaust gas inlet duct; closing a second damper at said exhaust gas outlet duct; and providing a flow of atmospheric air into said exhaust gas passage at said exhaust gas inlet duct and providing a flow of gas out of said exhaust gas passage at said exhaust gas outlet duct when said first and second dampers are closed.