Annual performance analysis of a single-basin passive solar still coupled with evacuated tubes: comprehensive study in climate conditions of Mahesana, Gujarat

ABSTRACT A solar still is very simple device to convert available brackish or saline water into drinkable water by use of solar energy. But due to its lower distillate output, it is not used widely for industrial and domestic potable water application. In the present research paper, annual performance analysis of a single-basin passive solar still with vacuum tubes (SBSWVT) is carried out in climate conditions of Mahesna, Gujarat, India, during July 2011–June 2012. From constant research work of 1 year, energy payback time of 176 days and cost of water produced of around 0.716 Rs per litre have been found.

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