Journal
CASE STUDIES IN THERMAL ENGINEERING
Volume 29, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.csite.2021.101687
Keywords
Solar still (SS); Conventional solar still (CSS); Solar still with energy storage materials (SSWESM); Phase changing materials(PCMs); Efficiency; Energy; Exergy; Distillate output
Categories
Funding
- Deanship of Scientific Research at Imam Mohammad Ibn Saud Islamic University through Research Group [RG-21-12-03]
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Researchers have attempted to improve the distillate yield and efficiency of solar stills by using energy storage materials. The experimental results show that solar stills with energy storage materials have higher distillate yield and efficiency compared to conventional solar stills.
Researchers have attempted different Energy storage materials (ESM) in solar stills (SS) to improve distillate yield. In this experimental work, an attempt was made to increase the distillate yield & efficiency of SS, using good absorbing and heat transfer capacity of ESM. A comparison was made between a conventional solar still (CSS) and a solar still with energy storage materials (SSWESM) in this experiment. Different energy storage materials like black color glass ball (BCGB), black granite (BG) and white marble stone (WMS) were used in equal quantity during experimental work. CSS and SSWESM had daily distillate yield of 1.4 kg/m2 and 2.5 kg/m2, respectively. The ESM boosts water evaporation during the day and releases heat at night, resulting in a higher distillate yield than CSS. Meanwhile, the exergy efficiency (eta(exe)) of CSS and SSWESM were 4.99% and 12.55% respectively. Also the SSWESM gives 72.6% more daily efficiency (eta) than CSS.
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