Improved freshwater generation via hemispherical solar desalination unit using paraffin wax as phase change material encapsulated in waste aluminium cans

The present work aims to increase the amount of water generated by hemispherical solar still (HSS) using paraffin wax as phase change material (PCM) encapsulated in waste aluminium-cans two different shape square pattern (4 PCM cans) and triangular (3 cans). Furthermore, a comparative analysis for conventional HSS over modified with arrangements was carried out optimize most suitable mass PCM. Results showed that aluminium cans patterns placed basin augmented clean production 92.80 % (full day generation 5.63 kg/m2) 67.12 4.88 respectively, compared bare without any 2.92 kg/m2). effective utilization heat from filled potable increased evaporation water. economic revealed use pattern, cost per liter produced reduced 67.65 45.31 respectively than It concluded low-cost encapsulating excellent conductivity maximum case) could be beneficial generating higher freshwater brackish