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Journal of Engineering Research

Journal of Engineering Research

DOI

10.70259/engJER.2024.851854

Abstract

As global demand rises, freshwater shortage is a serious obstacle that calls for sustainable desalination methods. To increase desalination productivity, this paper looks at integrating photovoltaic (PV) panels with a novel pyramid solar still architecture. Two distinct configurations of pyramid solar still absorbers were created, assessed, and contrasted with a conventional pyramid solar still: configuration (1) had a square base pyramid measuring 900 cm2 and a height of 12.5 cm, while configuration (2) had a pyramid base pyramid of 2500 cm2 and a height of 21 cm. The different pyramid proportions, working concepts, and system components were explained. A thorough analysis was conducted on performance measures, such as temperatures, freshwater production, and sun irradiation. The findings showed significant production gains when the modified pyramid solar still (MPSS) was compared to a traditional passive system (CPSS). Compared to CPSS, MPSS increased freshwater production for configurations (1) and (2) by around 18% and 19%, respectively, under the same operating conditions of solar radiation and ambient temperature. The recirculation pump's additional electrical functioning was made possible by the integration of PV electricity. Higher water temperatures at MPSS resulted in more heat retention. They supported the system's economic sustainability by increasing the temperature gradients between warm water and the inner glass cover, vapour pressure, and distillate water. They had respective average thermal efficiencies of 30% and 33%.

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