Performance analysis of modified basin type double slope multi–wick solar still

• Published in: Desalination Vol. 422; pp. 68 - 82
• Main Authors: Pal, Piyush, Yadav, Pankaj, Dev, Rahul, Singh, Dhananjay
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2017
• Subjects: Desalination; Instantaneous efficiency; Multi–wick passive solar still; Wick; Wick; Multi–wick passive solar still; Desalination; Instantaneous efficiency
• ISSN: 0011-9164; 1873-4464
• DOI: 10.1016/j.desal.2017.08.009

This paper presents an outlook to enhance the productivity of a basin type double slope multi–wick solar still by introducing the wicks. The experimental data for different months are presented, and analyzed the effect of climatic and operational parameters on the performance of modified basin type double slope multi–wick solar still (MBDSMWSS). The study has been conducted at Motilal Nehru National Institute of Technology Allahabad (MNNIT Allahabad), Uttar Pradesh (U.P.), India. A significant increase in the heat input, yield, and overall thermal efficiency have been obtained. In the instantaneous efficiency equation, the yield output and the heat input to the solar still is modified as input from both the glass covers and transparent walls are considered for the modified solar still. The result shows that, the maximum yield is obtained as 9012ml/day (4.50l/m2day) for black cotton wick in comparison to 7040ml/day (3.52l/m2day) for the jute wick at 2cm water depth in MBDSMWSS. Also, for same basin condition, the overall thermal efficiency of MBDSMWSS with the jute and black cotton wicks are 20.94% and 23.03%, respectively. •A modified basin type double slope multi–wick solar still was designed and tested with jute and black cotton wicks.•Experiments were performed under the climatic conditions of Allahabad (Latitude 25°27′ N & Longitude 81°44′ E), India.•Effect of climatic and operational parameters on the performance of modified solar still was presented.•Modified solar still with wicks of black cotton cloth was more productive and efficient.