APPLICATION: Solar Stills/ Water Distillation or DesalinationApril 22nd, 2009
DESCRIPTION: Where water quality is poor, due to either high salinity or contamination with biological organisms, water distillation can be used to provide water suitable for drinking and cooking. In this process solar stills are used to purify water. Solar stills are essentially flat plate collectors through which water passes openly into grooves. The technology is similar to that used in water heating except that the collector plate is slanted at a angle towards a channel which leads into a pipe. As the internal temperature of the collector rises, water molecules from the solution to be purified gain heat energy, allowing them to evaporate. Distilled (purified) water droplets condense on the internal side of transparent collector plate or cover and are channeled into the pipe which collects the distilled water.
SPECIALIZED EQUIPMENT: Flat plate collector
MANUFACTURER (S): Varied
COUNTRIES TECHNOLOGY IS UTILIZED: Worldwide
iii. Internet site(s):
? Solar Energy Industries Association
? Working Group On Development Techniques
? The Australia Renewable Website (Austria Greenhouse Office)
i. Capital or initial costs: US$40 – 45/ft2
ii. Operation and maintenance cost:
iii. Fuel energy costs:
INPUTS / RAW MATERIALS UTILIZED TO PRODUCE: Solar Energy, Water to be purified
ORGANIZATION (S) PROMOTING TECHNOLOGY: Varied
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