Induced nuclear reactions: processes – systems – and elements – Reactor structures – Orifice or fluid control at inlet or outlet of coolant channels
Patent
1989-12-11
1991-12-10
Bentley, Stephen C.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Orifice or fluid control at inlet or outlet of coolant channels
G21C 15243
Patent
active
050716174
ABSTRACT:
Pressurized water reactor fuel bundles (10) have a cast lower end fitting (20) which provides reduced pressure drop because nozzles (24) are of polygonal (rectangular or square) cross-section and the flow entrance wall portion (32) is a parabolic shape which merges into a wall portion (30) parallel to the flow direction. The parabolic shape of portion (32) and fillets (24a) at the nozzle (24) corners also give an improved draft to the casting. Pressure drop reduction was substantially greater than standard calculations indicated would be obtained.
REFERENCES:
patent: Re27950 (1974-03-01), Frisch
patent: 3212987 (1965-10-01), Mason
patent: 3481832 (1969-12-01), Rickert
patent: 3775249 (1973-11-01), Clapham
patent: 4096032 (1978-06-01), Mayers et al.
patent: 4427624 (1984-01-01), Marlatt et al.
patent: 4559275 (1985-12-01), Matt et al.
patent: 4652425 (1987-03-01), Ferrari et al.
patent: 4678627 (1987-07-01), Rylatt
patent: 4684495 (1987-08-01), Wilson et al.
patent: 4684496 (1987-08-01), Wilson et al.
patent: 4781884 (1988-11-01), Anthony
patent: 4832905 (1989-05-01), Bryan et al.
patent: 4919883 (1990-04-01), Bryan
Bryan William J.
Karoutas Zeses E.
Bentley Stephen C.
Combustion Engineering Inc.
Mulholland John H.
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