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An Experimental Studies on a Solar Still using Ground Heat and without using any Energy Storage Medium

Author(s):

BALAMURUGAN C.M , SVS COLLEGE OF ENGINEERING; AJAIY D, SVS COLLEGE OF ENGINEERING; R KIRUTHIKA, INFO INSTISTUTE OF ENGINEERING

Keywords:

Single basin still, saline water temperature, glass temperature, earth heat temperature, hourly yield

Abstract

This paper deals with the experiments conducted on a conventional single slope solar still by using earth heat and is modified without energy storage medium. An attempt has been made to utilize the maximum amount of solar energy and to reduce the heat loss from the sides and bottom of the still. The conventional still is modified without any energy storage medium which is provided in the basin for different depths of saline water. The earth heat functions as energy storage medium and also as an insulation layer to reduce the bottom and side loss coefficients. The earth heat is used for absorbing the excess heat energy from solar radiation during the noon hours. Due to this, the heat accumulated in the space between the water and glass surface is reduced and hence the temperature difference between the water and glass surfaces increases. The depth (quantity) of the saline water in the basin will influence the performance of the still and some of the parameters like basin temperature, water temperature, glass temperature, earth heat temperature and still productivity. This study deals with the effect of aforesaid parameters on the performance of the still. To show the effectiveness of the modification, its performance is compared with the conventional still by using earth heat under the same climatic condition. It is found that the still yield is increased by 17% with almost no cost for this modification.

Other Details

Paper ID: IJSRDV4I50472
Published in: Volume : 4, Issue : 5
Publication Date: 01/08/2016
Page(s): 715-718

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