An extensive review of performance enhancement techniques for pyramid solar still for solar thermal applications

Due to the rapid increase on world population, the demand for potable water is also getting increased. The solar distillation process is one among the prominent options, for those facing shortage of water in rural areas. Many researchers have put tremendous effort in designing a solar still with better efficiency in the last decade. Current review article demonstrates the recent studies carried out on pyramid solar still to enhance the distillate output. It includes the use of use of fins, phase change materials, coatings, flat plate collector, and evacuated tube collector to enhance the distillate output of pyramid solar still. Comparison of various parameters for different solar distillation system and various aspects in improving the performance of a pyramid solar still also discussed in tabular form. At last, Scope of further research & recommendations for Pyramid solar still is added for help to researchers.This publication was supported by Qatar University Internal Grant No. QPH3P-CAM-2021-452