Performance Assessment of Double Slope Solar Still With Pebbles & Cooling Water Jacket for Performance Enhancement.
Abstract
The unavailability of fresh drinking water can sometimes compel people to drink unclean water which causes illnesses and other health issues. This research work aims to develop & study a cost-efficient desalination technique employing thermal energy of solar irradiance. This device popularly known as passive solar still has been studied for a district in Jaipur, India for three solar still configurations i.e., 1) Conventional double slope solar still; 2) Still incorporating Pebbles as naturally available energy storage material & 3) cooling water jacket for glass cover for higher clean water production. Along with the experimental work, Energy & Exergy efficiency calculations were also performed for the entire system. In this study it has been concluded that the double slope solar still incorporating water cooling jacket for glass cover resulted in highest water production, Energy & exergy efficiency followed by still with Pebbles & conventional solar still. The total water yield for the above configurations being 1.9, 2.3 and 2.9 Liters respectively.
Keywords
Solar desalination, Solar thermal power, Cost efficient, Double slope solar still, Energy storage material.