Enhancement of Fresh Water Production in Solar Still Using New Phase Change Materials

Abstract

This paper presents the method of enhancing the performance from a paired basin and four-lateral glass faces solar still with and without the latent heat thermal energy storage. For contrasting the output from solar still with and without the latent heat energy storage, the solar still is designing and installing. Experiments are conducted at East-West orientation in Karbala city at the end of October and the beginning of November. Polyvinyl pyrrolidone (PVP K-30), polyethylene glycol (PEG 6000) and carboxymethyl cellulose sodium salt (CMC), where used because of their chemical properties as latent heat energy storage. The hourly output is a little rising in the case from solar still without (LHTESS) through sunlit days. There is a raise from about 25% - 40% in freshwater output for (LHTESS) than that from solar still without (LHTESS). As well it was found that through the onward glitter time the pure water created of the solar still is increasing. A solar still for (LHTESS) is find to be increased according to the type of additive.