General Electric Company

John Edward Sholes

Raub Warfield Smith

Harold Lamar Jordan, Jr

Achalesh Kumar Pandey

Douglas Frank Beadie

Leroy Omar Tomlinson

Kamlesh Mundra

Maria Cecilia Mazzaro

Kevin Wood Wilkes

John David Memmer

Yamil Miguel Morales Valvieja

Harold J Jordan

Tsungpo Lin

Dwayne David Mcduffie

Himanshu Raja

M Vivekanandhan

A system may include an exhaust conduit configured to route an exhaust gas from an engine to a heat recovery steam generator (HRSG). The system may also include a coolant supply coupled to the exhaust conduit. The coolant supply is configured to supply a coolant to the exhaust conduit. Additionally, the system may include a controller configured to control the coolant supply to control an exhaust temperature of the exhaust gas flowing through the exhaust conduit from the engine to the HRSG, or a steam temperature of steam generated by the HRSG, or a combination thereof. The controller may be configured to control the coolant supply differently in a full load condition relative to a part load condition of the system.

System and method for controlling coolant supply to an exhaust gas

In a combined cycle system (10) which includes a gas turbine (12), a steam turbine (20); and at least one heat recovery steam generator (34) including evaporator(s) (38, 42, 46) operating at one or more pressures, and where condensate from the steam turbine (20) is evaporated by exhaust gas from the gas turbine (12) and returned to the steam turbine (20), the improvement comprising a closed loop cooling air circuit arranged such that hot cooling air from the gas turbine (12) is passed in heat exchange relationship with water from that one or more of the evaporators (46) in the heat recovery steam generator (34).

Closed circuit air cooled gas turbine combined cycle

Growing community of inventors

King Mountain, NC, United States of America

John Edward Sholes