Abstrakt: |
Desalination of saltwater by solar powered systems is a practical and promising technology for producing potable water. Passive solar still is used in solar distillation installations because of its simple construction, simple operation, and low cost. In this context, a numerical investigation is performed of the solar still under the weather condition of Agadir Morocco. The effects of inserting the heat exchanger in the basin water on the performance of solar still (temperature of components, evaporative heat transfer coefficient, and distilled water productivity) are examined. The comparative results show that, when using a heat exchanger, the average evaporative heat transfer coefficient is improved by 36.84%. The average water temperature is raised by 19.86%, and the daily freshwater productivity is enhanced by 43.56% compared to the conventional solar still. However, the distilled water productivity may be reduced due to the increase in the mass of water. Compared with mass water 10kg, the daily freshwater production is 7.58kg/m2.day, and when mass water is 30kg, the cumulative output is 7.21kg/m2.day. [ABSTRACT FROM AUTHOR] |