Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Auxiliary heat removal structure
Patent
1991-05-17
1993-06-08
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Auxiliary heat removal structure
376282, 376299, G21C 900
Patent
active
052176827
ABSTRACT:
A nuclear reactor system including a main heat transport path around which a first coolant is pumped by main circulation pumps to transport heat from the reactor core to a steam generator. A heat exchanger is located in the main heat transport path after the outlet from the steam generator, the secondary side of that heat exchanger being in a decay heat removal loop which contains a second liquid coolant. A vapor separator in the decay heat removal loop is connected to an outlet of the heat exchanger with the vapor separator's outlet being connected to an inlet of a further heat exchanger located in a large tank of water which forms a heat sink. The further heat exchanger's outlet is connected to the heat exchanger's inlet forming a closed loop. The further heat exchanger is located at a higher elevation than the heat exchanger whereby a natural convection flow can occur in the decay heat removal path. Normally, the vapor/liquid interface in the loop is at a higher elevation than the heat sink which prevents any significant natural convection flow until boiling of the second liquid coolant occurs in the heat exchanger. If the steam generator is lost as a heat sink, this causes boiling of the secondary coolant to occur in the heat exchanger starting a natural convection flow in the decay heat removal loop. This natural convection starts automatically without the need of any valves being opened or any other type of intervention.
REFERENCES:
patent: 3285824 (1966-11-01), Ageron
patent: 3308032 (1964-04-01), Berthod
patent: 4187147 (1980-02-01), Braun et al.
patent: 4236968 (1980-12-01), Werker et al.
patent: 4407772 (1983-10-01), Woudstra
patent: 4689194 (1987-08-01), Wachholz et al.
patent: 4716014 (1987-12-01), Cantineau
patent: 4753771 (1988-06-01), Conway et al.
patent: 4818475 (1989-04-01), Gluntz et al.
patent: 4830815 (1989-05-01), Gluntz
"Next Generation Nuclear Reactors: Dare We Build Them?" Arthur Fisher; Popular Science; Apr. 1990, p. 68.
Atomic Energy of Canada Limited
Hunt Brooks H.
Voss Frederick H.
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