EXPERIMENTAL INVESTIGATION AND ENHANCING FRESH WATER PRODUCTIVITY FROM A SOLAR DISTILATION STILL WITH EXTERNAL PREHEATINGR. Titus, C. Krishnaraj, V.S. Winstor Jebakumar and M. Isaac Darwin
This paper experimentally evaluates conventional solar still with double slope and external copper coil for preheating the brackish water before it send to the still. For that heat energy which is from the sun is free and abundant in nature is used. The experiments were conducted beneath the climatological situations of Coimbatore [latitude 11.0300° N, long 77.1300° E] in Tamilnadu, India from 9 hrs to 18 hrs. The inlet, outlet and base water temperature are measured in an hourly manner using thermocouples. The conventional double slope solar still with external copper coil for preheating the brackish water ensure higher rate of evaporation and increases productivity of fresh water. The conventional and modified still performance was compared. There by it is ensured that the modified setup enhanced the fresh water productivity. The maximum productivity recorded was 3.25 lit/m2/day at the range of 1250 W/m2 632 W/m2 solar radiations.
Enter your contact information below to receive full paper.