Theoretical Performance Comparison of Stepped Solar Still Using Different Nanofluids

Document Type : Original Article

Authors

Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Egypt

Abstract

In the present work, theoretical performance comparison of stepped solar still using different nanofluids is performed. Four nano fluids are used in this study. The used nano- particles are aluminium oxide, Copper oxide, Titanmum dioxide, and Silicon oxide. The effect of nano-particles volume fraction on the still daily productivity and efficiency are studied. The estimated cost to produce  one distalled liter for conventional and stepped solar stills with and without nano-particles is obtained. It is found that using a nano-fluid may slightly increase the still productivity. Finally a good agreement between the present theoretical work and previous experimental results has been obtained.

Keywords