Solar energy converter with waste heat engine

Details Solar energy converter with waste heat engine Solar energy converter with waste heat engine

1975-07-07

1977-01-11

Edmundson, F.C.

Power plants

Utilizing natural heat

Geothermal

126270, 126271, 136 89PC, F03G 702, H01L 3106

Patent

active

040020312

ABSTRACT:
A solar energy converter uses gallium arsenide photovoltaic cells to convert light to direct current. Optical concentrators reduce the needed area of cells. Gallium arsenide retains high conversion efficiency up to several hundred degrees, so the waste heat may be used to produce mechanical power in a Rankine cycle engine.

REFERENCES:
patent: 2946945 (1960-07-01), Regnier et al.
patent: 2989575 (1961-06-01), Wallace, Jr.
patent: 3675026 (1969-06-01), Woodall
patent: 3822692 (1974-07-01), Demarest
patent: 3841738 (1974-10-01), Caplan
W. A. Beckman, et al., "Design Considerations for a 50-Watt Photovoltaic Power System Using Concentrated Solar Energy," Solar Energy, vol. 10, No. 3, pp. 132-136 (1966).
H. J. Hovel, et al., "Ga.sub.1.sub.-x Al.sub.x As-GaAs P-P-N Heterojunction Solar Cells," J. Electrochem. Soc. vol. 120, No. 9, pp. 1246-1252 (1973).
R. Davis, et al., "Operation of GaAs Solar Cells at High Solar Flux Density," Solar Energy, vol. 17, p. 145 (1975).

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