Performance enhancement using TiO2 nano particles in solar still at variable water depth

The present research paper shows the use of Titanium oxide nanoparticle to enhance the yield of Solar still. Titanium Oxide and black die mixture used as a base paint and find out the performance of the solar still at 20% and 40% weight by weight in a combination of titanium oxide materials and a black die. To check the consequences of water depth on productivity yield, readings were taken at different depth of water like 10 mm, 15 mm, 20 mm. The reading of these experiments has compared with a conventional solar still (CSS) in the same location (Gandhinagar, India, 23.2156°N, 72.6369°E) at the same ambient conditions. The outcome of the experiment shows, at higher water depth productivity of solar still increases up to a certain limit. We find that in comparison with conventional solar still 11–18% and 20–23% increment in productivity with 20% and 40% mixture. Highlight Performance of Passive Solar still, active Solar still and phase change material is studied. Nanomaterials are studied, and Titanium oxide (TiO<inf>2</inf>) used as a phase change material in Distilling system. Effect of variable water depth and concentration of nanomaterial with paint on productivity yield has been studied. The concentration of 40% (w/v) of TiO<inf>2</inf> and black paint offer 23% addition efficiency at a water depth of 10 mm concerning conventional solar still.