DEVELOPMENT OF BASIN SOLAR STILL BY ADDING MAGNETIC TREATMENT UNIT AND DOUBLE GLASS COVER PROVIDED WITH WATER | Science Publications

摘要

> The basin solar still was developed by adding a magnetic treatment unit, it?s energy 0.12 Tesla and two layer of glass provided with water between them. The study was conducted by testing the device by using magnetic water + double glass provided with water, non magnetic water + double glass cover, magnetic water + single glass cover, non magnetic water + single glass cover and control treatment (without additions). Intensity of incidence solar radiation in Basrah province during the month of April, Temperature in the basin solar still, glass cover surface, ambient, pH, water electric conductivity, productivity, density, physical and chemical properties were measured. Theoretical productivity and efficiency were calculated. The results showed that the average of solar radiation intensity is 889.55 W/m2. Temperature of basin solar still, glass cover surface and ambient was increased with increasing solar radiation intensity. The maximum of temperature in the basin water of solar still is 56.61°C at using magnetic water + single glass cover which has best performance compare with other treatments and having pH 7.03, minimum electric conductivity is 0.000672 S/m and density reached to 1000 kg/m3 and gave highest efficiency at 32.55% and it?s productivity improved by 50% compared with conventional.