Induced nuclear reactions: processes – systems – and elements – Reactor structures – Orifice or fluid control at inlet or outlet of coolant channels
Patent
1992-06-05
1994-04-12
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Orifice or fluid control at inlet or outlet of coolant channels
376281, G21C 100
Patent
active
053032756
ABSTRACT:
A forced-circulation boiling-water reactor includes fluidic diodes in the coolant fluid return path between the pump deck and the core inlet plenum. The fluidic diodes permit a downstream flow to proceed relatively freely, but substantially resist upstream flow. When pumps are shut down, the fluidic diodes serve to augment natural circulation, thus enhancing core stability. When the pumps are operating, the fluidic diodes serve to resist backflow, minimizing any loss of pump efficiency. This direction-flow asymmetry imposed by the fluidic diodes is achieved without moving parts, so as to achieve a high level of reliability.
REFERENCES:
patent: 1329559 (1920-02-01), Tesla
patent: 3386885 (1968-06-01), Wright
patent: 4627826 (1986-11-01), Cearley et al.
patent: 4830053 (1989-05-01), Shaw
Ser. No. 07/715,516: filing date Jun. 14, 1991, Inventor: Borchardt et al.
B. E. A. Jacobs and P. J. Baker, "The Cascade Diode", Proceedings of the Third Cranfield Fluidics Conference, Paper No. K5, British Hydromechanics Research Association, Cranfield, Bedford, United Kingdom, 1968, pp. 63-82.
E. Sher, "Theoretical and Experimental Study of the Scroll Diode Characteristics under Steady Conditions", The Journal of Fluid Control, vol. 12, No. 4, Debridge Publishing Co., Cupertino, Calif., Dec. 1980, pp. 57-70.
N. Syred and J. R. Tippetts, "A High Gain Active Diode--The Reverse Flow Vortex Amplifier", Proceedings of the Sixth Cranfield Fluidics Conference, Paper No. J4, British Hydromechanics Research Association, Cranfield, Bedford, United Kingdom, 1974, pp. 55-67.
Frank W. Paul, "Fluid Mechanics of the Momentum Flueric Diode", Proceedings of the November, 1968, IFAC Symposium on Fluidics, Paper A1, Peter Peregrinus Ltd., London, 1969, pp. 1-15.
Beulick J. S.
General Electric Company
Voss Frederick H.
Walsh Donald P.
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