Solar energy receiver

Details Solar energy receiver Solar energy receiver

1977-02-04

1978-10-24

Sprague, Kenneth W.

Stoves and furnaces

Ovens

Domestic

126271, 60641, F24J 302

Patent

active

041215648

ABSTRACT:
An improved long-life design for solar energy receivers provides for greatly reduced thermally induced stress and permits the utilization of less expensive heat exchanger materials while maintaining receiver efficiencies in excess of 85% without undue expenditure of energy to circulate the working fluid. In one embodiment, the flow index for the receiver is first set as close as practical to a value such that the Graetz number yields the optimal heat transfer coefficient per unit of pumping energy, in this case, 6. The convective index for the receiver is then set as closely as practical to two times the flow index so as to obtain optimal efficiency per unit mass of material.

REFERENCES:
patent: 1700675 (1929-01-01), Goddard
patent: 3203167 (1965-08-01), Green, Jr.
patent: 3220191 (1965-11-01), Berchtold
patent: 3234931 (1966-02-01), Whitaker
patent: 3293850 (1966-12-01), Morrison
patent: 3654759 (1972-04-01), Abbot
patent: 3924604 (1975-12-01), Anderson
patent: 4033118 (1977-07-01), Powell
patent: 4038969 (1977-08-01), Smith
Kreith, Frank, Principles of Heat Transfer, Scranton, International Textbook Company, 1961, pp. 354-361.

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