Distillation: apparatus – Apparatus – Types
Patent
1994-08-01
1997-05-13
Manoharan, Virginia
Distillation: apparatus
Apparatus
Types
159903, 159906, 159DIG15, 159DIG21, 2022671, 203 10, 203 86, 203DIG1, 203DIG17, B01D 300, C02F 114
Patent
active
056288794
ABSTRACT:
A portable solar still, controlled by a sun actuated mechanical valve, including a thermally insulated evaporation chamber structure within which distillation takes place, is assembled from sidewall panels and floor panels of foam plastic thermal insulation, these panels being strengthened and made into rigid structural units by metal tubes or rods incorporated internally into the foam plastic panels,
a transparent cover sealing the sloping top of the evaporation chamber including a transparent, flexible, plastic film which is stretched across, and has its four boundary edges attached to, the four members of a closed rectangular frame of slender metal tubes,
wick matting, disposed on the floor of the evaporation chamber including a layered mat of fine, randomly oriented,. glass fibers, said wick matting being impregnated with a black, hydrophylic, mixture to provide maximum absorbency of saline water and of solar heat energy,
an adjustable, mechanical, sun actuated saline water flow control valve regulates the rate of saline feedwater inflow into the evaporation chamber.
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Lof, Geo. O.G. , "Demineralization of Saline Water with Solar Energy", R & D Report No. 4, Aug. 1954, pp. 64-67.
Telkes, Maria, "New & Improved Methods of Solar Distillation," R & D Report No. 31, Aug. 1959, pp. 3-5.
Erb, Rob't A., "Producing Permanently Hydrophylic Surfaces on Plastic Film for Solar Stills," R & D Report No. 29, pp. 1-27, Sep. 1959.
Lawand, T.A., "Systems for Solar Distillation" Report No. R 115, Sep. 1975, Brace Research Institute, p. 5.
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