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Wick basin solar still. The wick type solar still is a vapour-tight glass-topped box with an angled roof. [7] Water is poured in from the top. It is heated by sunlight and evaporates. It condenses on the underside of the glass and runs into the connecting pipe at the bottom. Wicks separate the water into banks to increase surface area.
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The floating solar still operates through an elegantly simple yet highly effective process. First, ocean water is drawn up to the device's foam surface through a wicking system. Once the water ...
A solar still is a simple way of distilling water, using the heat of the Sun to drive evaporation from humid soil, and ambient air to cool a condenser film. Two basic types of solar stills are box and pit stills. In a pit still, impure water is contained outside the collector, where it is evaporated by sunlight shining through clear plastic.
A typically 25% efficiency standard solar still (not allowing for any recovery of rejected latent heat), as the latent heat of vaporization of water is 2.26 MJ per kilogram, [3] should evaporate 2.4 kg (or liters) of water per m 2 per day in a region with an average daily solar irradiation of 21.6 MJ/m 2 (250 watts/m 2), or 873 liters per year ...
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