Passive residual heat removal system for nuclear power plant

Details Passive residual heat removal system for nuclear power plant Passive residual heat removal system for nuclear power plant

1977-12-16

1980-12-16

Engle, Samuel W.

176 38, 176 65, G21C 1518

Patent

active

042395968

ABSTRACT:
An enclosed reservoir is sized and located in relation to the steam generator of a pressurized water nuclear reactor power plant so that upon a loss of feedwater flow to the steam generator, a gravity induced supplementary flow into the steam generator is automatically initiated to dissipate the residual heat generated in the reactor. The height of the reservoir is the same as the distance between upper and lower design limits on steam generator feedwater level. The top of the steam generator is fluidly connected to the top of the reservoir to equalize the pressure therebetween. The gravity induced flow from the reservoir to the steam generator produces a water level in the steam generator that stays within the upper and lower design limits.

REFERENCES:
patent: 3127322 (1964-03-01), Dodd
patent: 3290222 (1966-12-01), Schoessow
patent: 3718539 (1973-02-01), West

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