Power plants – Motive fluid energized by externally applied heat – Heating motive fluid by nuclear energy
Reexamination Certificate
2011-08-16
2011-08-16
Nguyen, Hoang M (Department: 3748)
Power plants
Motive fluid energized by externally applied heat
Heating motive fluid by nuclear energy
C060S653000, C060S660000, C060S667000, C060S677000
Reexamination Certificate
active
07997078
ABSTRACT:
In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
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Aoyama Motoo
Chaki Masao
Kitou Kazuaki
Ootsuka Masaya
Shiina Kouji
Brundidge & Stanger, P.C.
Hitachi-GE Nuclear Energy, Ltd.
Nguyen Hoang M
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