Improving the performance of a modified hemispherical solar distiller using a double-faces absorbing solar thermal receiver integrated with a solar concentrator

• Published in: Solar energy Vol. 241; pp. 335 - 342
• Main Authors: El Hadi Attia, Mohammed, Elnaby Kabeel, Abd, Refat Abd Elbar, Ayman, Abdelgaied, Mohamed, Abdullah, A.S., Khairat Dawood, Mohamed M., Kabeel, A.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15-07-2022
• Subjects: Double-Faces Absorbing Solar Receiver; Energy Efficiency; Exergy Efficiency; Hemispherical Solar Distiller; Performance Improvement; Solar Concentrator; Exergy Efficiency; Solar Concentrator; Performance Improvement; Double-Faces Absorbing Solar Receiver; Energy Efficiency; Hemispherical Solar Distiller
• ISSN: 0038-092X; 1471-1257
• DOI: 10.1016/j.solener.2022.06.016

•Double-faces absorbing solar receivers integrated with solar concentrator (DFASTR&SC) are very effective choices.•New DFASTR&SC has a great influence on hemispherical solar distiller performance.•Use DFASTR&SC improved a hemispherical distiller yield to 8.65 l/m2 with improvement of 50.4%•Use DFASTR&SC improved the distiller thermal efficiency by 50.56% compared to the reference unit.•Use DFASTR&SC improved the exergy efficiency to 68% compared to 2.47% for the reference unit.
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 (MHSD-DFASTR&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.