Abstract
An experimental study was conducted at Rewa, India (24°32′′N, 81°18′′E) in order to investigate the effect of the material of the body of a basin type solar still on its performance. Two single sloped basin type solar stills of G.I. sheet and F.R.P. respectively were constructed of equal basin area and size and were tested by keeping them side by side under identical conditions. Due to considerably lower thermal conductivity of F.R.P. as compared to that of G.I., around 30% higher productivity was observed in the former. The base heat loss as calculated with the help of the thermal model, in case of F.R.P. still was observed to be 36% which was much lower than 53% for G.I. still. The efficiency of the F.R.P. still was obtained as 32% whereas for G.I. still it was 26%.
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