Use of a mathematical model to predict solar still performance at different times of a year

Department of Mechanical Engineering, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology, Islamabad 44000, Pakistan

^* Corresponding author: nawaf998428@gmail.com

Abstract

Solar stills are typically used to use solar energy to extract clean and fresh water from salt water sources. Considering that solar energy is the primary energy source utilized. This technology is incredibly cost-effective. The effectiveness of solar stills is affected by a multitude of factors which includes location, height, wind speed, inclination angle of the glass, and glass thickness. The solar still performance at different time period of the year will be examined. Results are taken into account for the location of Islamabad on March 22, June, September, and December after every hour of operation from 10 am to 4 pm. The heat transport within the solar still has also been determined, based on theoretical calculations of the total radiation falling on the still. Maximum solar distillate output after 6 hours of operation was found on 22^nd June and minimum result was found on 22^nd December.