The Journal of Science and Engineering Applications (JSEA)

Abstract

Single slope solar still is one of the most popular water purifiers. This paper investigated heat transfer 
processes that occur inside the solar still numerically and experimentally In addition, attempts to improve 
productivity have been studied. Comsol Multiphysics software (v5.5) was used to develop a 3D 
mathematical model to examine the considered developments. Four different heating tank designs (sphere, 
half sphere, con, and rectangular) were compared as an optimization step. The studies have also considered 
the volume of the tank to choose to best one among the proposed volumes. The experimental study included 
the manufacturing of a water heating tank and its integration with a solar still. An improvement of (35%) 
was obtained when designing a halfsphere tank with a volume of 2.5 times that of a conventional solar still 
(CSS).