| 摘要 |
PROBLEM TO BE SOLVED: To reduce expense for remodeling or replacement of a turbine in a nuclear power plant having possibility of increasing a rated heat output in future. SOLUTION: In this nuclear power plant having a nuclear steam supply system for generating steam by fission, and the turbine for recovering energy of steam supplied from the nuclear steam supply system, when steam generated with a higher heat output than the rated heat output by the nuclear steam supply system such as the first turbine efficiency curve 1 is supplied, operation is performed at the rated heat output by using the turbine wherein an energy recovery efficiency is heightened furthermore than the operation time at the rated heat output (point C in figure 1). Thereafter, when the rated heat output of the nuclear steam supply system is increased by 7%, an electric output can be increased by operating at the increased rated heat output after remodeling (point A in figure 1) without remodeling of the turbine or the like. COPYRIGHT: (C)2007,JPO&INPIT
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