ANALYTICAL STUDY ON CONVENTIONAL AND MODIFIED SOLAR AIR HEATERS
The purpose of this research is to improve the efficiency of a basic solar air heater for drying crops and heating rooms. Sand from the desert has been added to the solar heater as a heat-absorbing substrate. It has been tested in Moradabad, India, in four distinct configurations, using both natural and induced convection, to see how it performs. New configurations of the modified system have greater thermal performance than a traditional solar air heater of a comparable design. There is a major problem with the solar distillation unit's lower distillate production from the solar stills. The primary goal of this experiment is to increase the standard solar still system's distillation rate. Adding a solar air heater (SAH) to a traditional single-slope solar still was the focus of the current study. It was done in Ranchi (India) on a south-facing single slope solar still with an inclination angle of 230.