Experimental study on conventional solar still integrated with inclined solar still under different water depth

This study primarily focuses on comparative experimental analysis on standalone conventional solar still (CSS), inclined solar still (ISS), and integrated conventional and inclined solar still (CSS-ISS) for different parameters that affect the freshwater yield. For enhancing the freshwater yield only a few studies are available on still-still integration. The present novel study provides a greater improvement in improving the freshwater yield by integrating ISS with CSS. This experimental work mainly concentrates on the importance of water depth (d _w) and mass flow rate of water (m _w) in the solar still. Water depth inside the conventional still varied from 0.02 to 0.06 m whereas, water is constantly flown with a mass flow rate of 8.33 kg/hour in an ISS with baffles. The experimental result shows that the accumulated freshwater yield from CSS-ISS, ISS, and CSS were 6.2, 5.04, and 4.24 kg, respectively. CSS-ISS and ISS produced 46.23% and 18.87% higher productivity than the CSS. From the experimental investigation, it is also identified that the water temperature is significantly improved by 20% using integration as compared with CSS without integration under the same water depth of d _w= 0.02 m. The overall improvement in yield was higher in the case of CSS-ISS. The deviations between experimental and theoretical values of yield from the conventional and modified solar still were in the range of ±7%.