Solar stills; Thermal modelling; Solar energy; Distilled water
In this communication, a thermal model of a double condensing chamber solar still (DCS) has been presented. The thermal model is based on energy balance equations for the different components of a double condensing chamber solar still (DCS), namely the water mass, the first and second condensing
covers and the basin liner, including the reflecting mirror. Experiments were conducted for both the single slope conventional solar still (CSS) and double condensing chamber solar still (DCS) on an
hourly basis for comparison of their performance. Numerical computations for evaluating the hourly temperatures and yield have been performed for Delhi climatic conditions. The obtained results have been compared with the experimental observations. It is observed that there is a fair agreement betweenthe theoretical and experimental observations.