Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Auxiliary heat removal structure
Patent
1994-02-14
1995-06-27
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Auxiliary heat removal structure
G21C 1518
Patent
active
054286522
ABSTRACT:
A pressurized water reactor residual heat extraction system uses the secondary cooling circuit to extract the residual heat in certain operating and malfunction conditions. A steam generator (D1) has a connection, located on the live-steam and feed-water side, to the secondary circuit side of a safety condenser (SK1). The tertiary circuit side of the safety condenser is fed from a water reservoir (B) located at a physically higher level. The steam generated is vented to the atmosphere through a blow-off line (b2) which may include a separator. A make-up feed device (E1) is connected to the secondary side of the steam generator. Because of the higher location of the safety condenser with respect to the steam generator, the heat energy in the secondary cooling circuit circulates by natural circulation.
REFERENCES:
patent: 4104119 (1978-08-01), Schilling
patent: 4304198 (1981-12-01), Stiefel
patent: 4407773 (1983-10-01), Woudstra
patent: 4654190 (1987-03-01), Schlonski
patent: 4765946 (1988-08-01), Dagard et al.
Nuclear Engineering Int. Publ. Apr. 1991, pp. 49-51, "CAREM aims to make very-low-power reactors economic".
Conrads Hermann-Josef
Czech Jurgen
Goggelmann Horst
Leidemann Werner
Mackert Pius
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Wasil Daniel D.
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