Patent ID: 9376962
Filing Date: 2016-06-28
CPC Classification: F01K,F02C,Y02E,Y02P

Claim Text:
1. A system, comprising: a gas turbine engine; a steam generating source configured to recover exhaust energy from the gas turbine and generate a supply of a working fluid; a fuel gas source configured to supply fuel gas to the gas turbine engine; a thermal storage unit configured to store a thermal storage working medium for heating the fuel gas supplied from the fuel gas source to the gas turbine, the thermal storage unit including a cold tank storing the thermal storage working medium in a cold state and a hot tank storing the thermal storage working medium in a heated state, wherein the thermal storage working medium is separate and different from the working fluid; a first fuel gas heater configured to heat the fuel gas supplied from the fuel gas source; and a second fuel gas heater configured to complement the first fuel gas heater in the heating of the fuel gas supplied from the fuel gas source, wherein the first fuel gas heater and the second fuel gas heater utilize an extracted portion of the working fluid generated in the steam generating source and thermal energy from the thermal storage working medium stored in the hot tank of the thermal storage unit to heat the fuel gas to a predetermined fuel gas temperature level.