THEORETICAL AND EXPERIMENTAL STUDIES ON STEPPED SOLAR STILL

In the present work, an attempt has been made to study the performance of a solar still. Many thermal models were developed by researchers to predict the performance of solar still. Thermal models developed by Dunkle and by Tsilingiris to predict the performance of the still is considered for the present study. A stepped solar still is fabricated for experimental study in the premises of SHIATS Allahabad (U.P.) India. It is observed that the daily productivity of more than 5 kg is obtained by still area of 1 m2. It is further observed that the daily productivity predicted by Tsilingiris model is closer than the Dunkle model.