Saltless solar pond

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4498, F24J 302

Patent

active

044704038

ABSTRACT:
A solar pond (16) adapted for efficiently trapping and storing radiant solar energy without the use of a salt concentration gradient in the pond is disclosed. A body of water (20) which may be fresh, saline, relatively clear or turbid, is substantially covered by a plurality of floating honeycomb panels (18). The honeycomb panels (18) are made of a material such as glass which is pervious to short wave solar radiation but impervious to infrared radiation. Each honeycomb panel (18) includes a multitude of honeycomb cells (42) having a height-to-width aspect ratio of at least approximately 14 to 1. The honeycomb panels (18) are divided into the elongated honeycomb cells (42) by a multitude of intermediate plates (44) disposed between a bottom plate (34) and top plate (36) of the panel (18). The solar pond (16) of the invention is well suited for providing hot water of approximately 85.degree.-90.degree. C. temperature for direct heating applications, and for electrical power generation.

REFERENCES:
patent: 3072920 (1963-01-01), Yellott
patent: 3893443 (1975-07-01), Smith
patent: 3949095 (1976-04-01), Pelehach et al.
patent: 4015583 (1977-04-01), Laing
patent: 4019496 (1977-04-01), Cummings
patent: 4022187 (1977-05-01), Roberts
patent: 4138990 (1979-02-01), Hussmann
Edwards, D. K. and Catton, Ivan, "Prediction of Heat Transfer . . . ", International Journal of Heat and Mass Transfer, vol. 12, 22-30, (1969).
Marsh, H. I. et al., "Salt-gradient Solar Ponds in the Salton Sea: Brine Optical Quality and Performance", IECEC proceedings, (1981).
McMurrin, J. C., "Model, Tests and Optimization of Flat Plate Solar Collectors, with Emphasis on Sinusoidal Honeycomb", M.S. Thesis, UCLA, (1979).
Hollands, K. G. T., "Honeycomb Devices in Flat Plate Solar Collectors", Solar Energy, vol. 9, No. 3, p. 159, (1965).
Lin; E. I. H., "A Review of the Salt-gradient Solar Pond Technology", report in preparation.
Buchberg, H., Edwards, D. K., and MacKenzie, J. D., "Transparent Glass Honeycomb Structures for Energy Loss Control", Final Report to DOE, UCLA, (1980).

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