Patent ID: 7603840
Filing Date: 2009-10-20
Classification: F02C,F05D,F17C,Y02E

Abstract:
1. An LNG power plant comprising: (a) a gas turbine power generation unit having a gas turbine and a power generator; (b) an LNG vaporization facility configured to feed vaporized LNG as a fuel gas to the gas turbine power generation unit; (c) a gas feed pipe extended from the LNG vaporization facility to the gas turbine power generation unit; (d) a fuel gas heating/cooling device disposed between the LNG vaporization facility and the gas turbine power generation unit on the gas feed pipe, configured to heat and cool fuel gas introduced into the gas turbine power generation unit; (e) a heating value detector configured to detect a heating value of the fuel gas; (f) a temperature detector attached on the gas feed pipe between the fuel gas heating/cooling device and the gas turbine power generation unit configured to detect a temperature of the fuel gas; and (g) a temperature control device of the fuel gas heating/cooling device configured to control temperature of the fuel gas supplied to the gas turbine power generation unit, the temperature control device having: