Effect of Glass Cover Angles on the Performance of Double Slope Solar Still: A CFD Simulation Analysis

The main aim of this paper is to conduct a numerical simulation study using the CFD on the performance of double slope solar still for the various glass cover inclination angles such as 250, 350, and 450. Nowadays, the CFD simulation study helps the engineers to prove the experimental work theoretically thereby diminishes the time and cost and provide reliable results. In this work, a 2-D CFD simulation study is carried out to investigate the heat and mass transfer in the solar still. The water flow in the solar still is assumed as an incompressible ideal gas, steady, laminar, and 2-D. The COUPLED algorithm is employed to solve the energy, momentum, and continuity equations for this numerical simulation study. The CFD simulation results provide a good acceptable agreement when compared to the published experimental data in the literature. From the CFD simulation results, it concluded that 350 glass cover angle exhibit optimum and accurate results in contrast to the other glass cover angles such as 250 and 450by evaluating the contours of velocity, temperature, streamline functions, and vapor mass fraction of water.