Induced nuclear reactions: processes – systems – and elements – Reactor structures – Circulating fluid within reactor
Patent
1998-08-28
1999-08-17
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Circulating fluid within reactor
376290, 376403, G21C 1108, G21C 1512
Patent
active
059404639
ABSTRACT:
An in-vessel structure for a top-entry type fast reactor wherein a core is positioned in the interior of a reactor vessel, an upper core structure being provided above the core, a coolant passing through a cold leg piping inserted from an upper portion of the reactor vessel thereinto and reaching the core, in which the coolant is heated, the coolant then flowing out to an upper plenum, the resultant coolant passing through a hot leg piping, which is inserted from an upper portion of the reaction vessel thereinto, and reaching the outside of the reactor vessel. A plurality of annular fins are fixed horizontally in an axially spaced manner to both the portions of an outer circumferential surface of the upper core structure and the opposite portions of an inner circumferential surface of the reactor vessel, these portions being under the free liquid surface during a rated operation of the reactor.
REFERENCES:
patent: 5043135 (1991-08-01), Hunsbedt et al.
"Study on Flow Optimization in Reactor Vessel of Top-Entry Loop-Type DFBR", ICONE-3 (3rd International Conference on Nuclear Engineering) vol. 1, Kyoto, Japan (Apr. 1995).
Patent Abstracts of Japan, vol. 096, No. 001, Jan. 31, 1996 & JP 07 248389 A (Toshiba Corp), Sep. 26, 1995.
Japan Nuclear Cycle Development Institute
Wasil Daniel D.
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