| 摘要 |
PROBLEM TO BE SOLVED: To increase a shaft horsepower of a gas turbine at a time when an air temperature is high and demand for power is a peak period by switching a heating medium of a carburetor from sea water into water such as industrial water, and supplying water cooled by the carburetor to an air cooler through a circulation line, at a time zone of an air temperature necessitated cooling of combustion air. SOLUTION: In a period when an atmosphere temperature is high and power demand is increased in summer, industrial water accumulated in a tank 10 is used as a heating medium of a carburetor 1, vaporization of LNG and cooling of combustion air are simultaneously carried out by the industrial water. Namely, a change valve 16 and each of opening/closing valves 7, 22 are closed, a change valve 15 and an opening/ closing valve 8 are opened, a circulation pump 11 is operated, and thereby, the industrial water in the tank 10 is circulated to a transfer line 13, an air cooler 12, a feed line 14, the carburetor 1, and the tank 10 in order. All industrial water whose temperature went down by heat exchange of the carburetor 1, is supplied to the air cooler 12 for cooling combustion air of a gas turbine, and the industrial water whose temperature rose is returned to the carburetor 1 for vaporizing low temperature liquefied gas for combustion.
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