Energy, exergy, environmental, and economic analysis of natural and forced cooling of solar still with porous media

The performance of single slope solar still with an enhanced condenser at different saline water mediums in the basin is studied and assessed based on productivity, energy, exergy, economic, and enviroeconomic methodologies. Six solar still configurations are considered: conventional solar still (CS...

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Bibliographic Details
Published in:Environmental science and pollution research international 2020-10, Vol.27 (30), p.38221-38240
Main Authors: Hassan, Hamdy, Yousef, Mohamed S., Ahmed, M. Salem, Fathy, Mohamed
Format: Article
Language:English
Subjects:
Air cooling
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Climatic conditions
Cooling
Earth and Environmental Science
Economic analysis
Economics
Ecotoxicology
Energy
Environment
Environmental Chemistry
Environmental Health
Environmental science
Exergy
Heat sinks
Liquid cooling
Minimum cost
Porous media
Research Article
Saline water
Summer
Thermodynamics
Waste Water Technology
Water Management
Water Pollution Control
Winter
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Summary:The performance of single slope solar still with an enhanced condenser at different saline water mediums in the basin is studied and assessed based on productivity, energy, exergy, economic, and enviroeconomic methodologies. Six solar still configurations are considered: conventional solar still (CSS); modified solar still (MSS) which is a still with heat sink condenser; MSS having an umbrella (MSS + U); MSS with forced-air cooling (MSS + FA); MSS with forced-water cooling (MSS + FW); and finally, MSS with forced-water cooling and contains sand in the basin (MSS + FW + SD). Experiments are conducted under hot and cold climate conditions of Sohag city, Egypt. The results indicate that the MSS + FW + SD has a maximum daily yield of 5.37 kg/m 2 in summer and 2.74 kg/m 2 in winter with an increase of 36% in summer and 26% in winter compared with CSS. It was found that the maximum increase of the energy and exergy efficiency compared with CSS is achieved in the case of MSS + FW + SD of 39% and 33%, respectively. Furthermore, the maximum and minimum cost of freshwater is achieved in cases of MSS + U and MSS + FW + SD, respectively. Finally, among all studied systems, MSS + FW + SD achieves the best performance based on the exergoeconomic approach.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-09995-4