Abstract
Innovative configurations and designs improve the performance of solar distillers. From this view, the present study aims to achieve the maximum possible benefit from a large condensation surface that characterizes the hemispherical distillers by increasing the evaporation rates. This was done by using a double-face absorbing solar thermal receiver integrated with a solar concentrator. To obtain the influences of double-faces absorbing solar thermal receiver integrated with a solar concentrator on hemispherical distiller's performance. Two hemispherical distillers were fabricated and operated in El Oued City, Algeria, first is a modified hemispherical distiller using double-faces absorbing solar thermal receiver integrated with a solar concentrator (MHSDDFASTR&SC), and the second is the reference distiller (traditional hemispherical solar distiller (THSD)). The experimental results indicate that MHSD-DFASTR&SC increases the productivity to 8.65 l/m2.day compared to 5.75 l/m2.day for THSD with an improvement of 50.4%. Consequently, due to this great increase in yield of MHSD-DFASTR&SC, the energy efficiency of MHSD-DFASTR&SC was increased by 50.56% compared to THSD. Furthermore, the daily exergy efficiency of MHSD-DFASTR&SC is 68% compared with 2.47% for THSD.