Description of Solar Distillation Apparatus:
Solar Still Basin Type: This includes a shallow square evaporating tray, the base of which is fitted with removable heat insulating material which assists in the evaporation process. This contains the brine liquid to be studied and is covered by a sheet of flat plate glass, set at an angle of 12º to the horizontal, so that water condensing on it readily runs down to the lower edge. Water evaporating from the tray condenses on the inside surface of the glass cover, runs down to the lower edge and collects in a channel alongside the evaporating basin, from whence it drains to a volumetric measuring vessel. Temperature measurement by multi-point thermocouple instrument is provided at the following points: - feed, brine (output), ambient, glass (outside), glass (inside), the vapour space, centre of tray (under mat), mat (top side). An optional pen recorder is available to continuously record these temperatures. The whole top section of the still may be turned horizontally through 180, so making it possible to alter the angle of incidence of sunlight on the absorbing pad.
Experimental Capability of Solar Distillation Apparatus:
Features of Solar Distillation Apparatus:
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