Experimental Investigation of the Effects of Preheating on Still Productivity

Abstract

Single basin solar still (SBSS) has low productivity in this experimental research, some techniques have been employed to solve this problem, these techniques consist of using a flat plate collector. The main aim of this research was to make efficient use of the flat plate collector (FPC) to increase solar still productivity, and it works as a hybrid device. The model solar water heater for the flat plat collector (FPC) was coupled with a solar still, and the tests were repeated in 3 to 5 winter days, and the results were measured in the same way for each day. The results revealed that the productivity of the still increased 87 % when coupled with one, and decreased 20 % and 50 % when coupled with two and three flat plate collectors in southern Algeria, respectively.

Optimal design of the stand-alone developed hybrid system for producing pure water and drying the plants for remote regions

“…Numerous studies have been conducted, all of which aim to increase the productivity of pure, drinkable water that is produced from solar distillers, such as pre-heating of solar energy feeding experimentally by Badran and Tahina [13], and the use of pre-heating by means of a flat solar panel led to an improvement in the amount of water accumulated by 36%. Cherraye [14] found that integrating a solar distillation unit with a flat plate collector increased production by 87%. Abdel-Bar and Hassan [15] compared the performance of the solar distillation unit without preheating and similar solar performance with preheating the feed which was done by cooling the surface of a photovoltaic panel, the results showed that preheating the solar still feed water by 60% increases the productivity of solar energy.…”

Experimental Investigation of the Innovative Small Hybrid Desalination Plant Powered by PVT Panel for Remote Regions

“…Preheating the feed of solar still was experimentally tested by Badran and Al-Tahaineh [24], the preheating was achieved by a solar flat plate, and it was found that preheating improved the amount of water accumulated by 36%. Cherraye [25] found that integrating solar still with one flat plate collector increased production by 87%. Abd Elbar and Hassan [26] compared the performance of a solar still without preheating and a similar solar still with feed preheating which was done by cooling a photovoltaic panel surface, the results had shown that preheating the solar still feed water by 60% increase the productivity of the solar still, the energy efficiency, the exergy efficiency by 20.9%, 20%, and 60.64%, respectively.…”