Experimental Investigation of the Influence of Stone Bed Thickness and Glass Cover Inclination Angle on Solar Still Performance in Al Bayda, Libya

مؤسسة الشرق الأوسط للنشر العلمي

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الإصدار التالي: 06 ديسمبر 2025
من مجلة الشرق الأوسط للنشر العلمي

Experimental Investigation of the Influence of Stone Bed Thickness and Glass Cover Inclination Angle on Solar Still Performance in Al Bayda, Libya

Ahmad Melad Solman Hassan
Abstract

This study looks at how well a solar still worked in Al Bayda, Libya (32°27'N, 22°37'E) over a 10-day period in August when there was a lot of sunlight. The effect of stone bed thickness (0 cm, 1 cm, and 2 cm) and glass cover angle (22°, 27°, 32°, and 37°) on the water temperature and the amount of freshwater produced was carried out in this research. The results showed that, a 32° glass angle yielded the most water, 15% more than at 22° (10%), and more than 37°. A 1 cm stone bed significantly extended thermal storage and evaporation during low-radiation hours. The best mix of a 32° angle and a 1 cm stone bed increased the amount of fresh water produced each day by 20% compared to the usual setup. The most productive time was between 12:00 and 14:00. These results suggest a cheap way to improve the design of solar stills in dry areas, potentially increasing freshwater production in Libya's AL Jabal AL Akhdar Region.

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