4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling

This study explores the potential performance improvements of a tubular solar still (TSS) through innovative design modifications. Three configurations are explored a hanging wick for thin-film evaporation, an evacuated tube solar heater to boost evaporation, and a cover cooling system to enhance co...

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Main Authors: U.F. Alqsair, Abanob Joseph, A.S. Abdullah, Swellam W. Sharshir
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X2500526X
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author U.F. Alqsair
Abanob Joseph
A.S. Abdullah
Swellam W. Sharshir
author_facet U.F. Alqsair
Abanob Joseph
A.S. Abdullah
Swellam W. Sharshir
author_sort U.F. Alqsair
collection DOAJ
description This study explores the potential performance improvements of a tubular solar still (TSS) through innovative design modifications. Three configurations are explored a hanging wick for thin-film evaporation, an evacuated tube solar heater to boost evaporation, and a cover cooling system to enhance condensation. In the first setup, the TSS achieved a daily output of 4.57 L/m2, which represents a 38.48 % increase compared to the conventional solar still (CSS) average output of 3.2 L/m2. The energy and exergy efficiencies increased to 43.92 % and 3.72 %, respectively, compared to the CSS, which achieved 33 % and 2.1 % for energy and exergy efficiencies, respectively. In the second configuration, the TSS showed further improvement with a daily yield of 8.32 L/m2, an increase of 157.5 % over the CSS. In the third configuration (the best case), the daily yield increased from 3.2 L/m2 in the CSS to 9.96 L/m2, an improvement of 205.48 %. Energy and exergy efficiencies increased to 88.29 % and 9.42 %, respectively. The third configuration has the minimum cost of producing water was 0.0170 $/L alongside 412.79 % enhancement in exergy output (220.43 kWh/year) over the CSS, and five times CO2 emission reduction (5.29 tons).
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publishDate 2025-08-01
publisher Elsevier
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series Case Studies in Thermal Engineering
spelling doaj-art-aaa9c6a7dcc24f5ab9792866842c457f2025-08-20T03:52:52ZengElsevierCase Studies in Thermal Engineering2214-157X2025-08-017210626610.1016/j.csite.2025.1062664E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover coolingU.F. Alqsair0Abanob Joseph1A.S. Abdullah2Swellam W. Sharshir3Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi ArabiaMechanical Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, EgyptDepartment of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi ArabiaMechanical Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt; Corresponding author.This study explores the potential performance improvements of a tubular solar still (TSS) through innovative design modifications. Three configurations are explored a hanging wick for thin-film evaporation, an evacuated tube solar heater to boost evaporation, and a cover cooling system to enhance condensation. In the first setup, the TSS achieved a daily output of 4.57 L/m2, which represents a 38.48 % increase compared to the conventional solar still (CSS) average output of 3.2 L/m2. The energy and exergy efficiencies increased to 43.92 % and 3.72 %, respectively, compared to the CSS, which achieved 33 % and 2.1 % for energy and exergy efficiencies, respectively. In the second configuration, the TSS showed further improvement with a daily yield of 8.32 L/m2, an increase of 157.5 % over the CSS. In the third configuration (the best case), the daily yield increased from 3.2 L/m2 in the CSS to 9.96 L/m2, an improvement of 205.48 %. Energy and exergy efficiencies increased to 88.29 % and 9.42 %, respectively. The third configuration has the minimum cost of producing water was 0.0170 $/L alongside 412.79 % enhancement in exergy output (220.43 kWh/year) over the CSS, and five times CO2 emission reduction (5.29 tons).http://www.sciencedirect.com/science/article/pii/S2214157X2500526XCover coolingEvacuated tube heaterSustainabilitySolar desalinationThin-film evaporationTubular solar still
spellingShingle U.F. Alqsair
Abanob Joseph
A.S. Abdullah
Swellam W. Sharshir
4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
Case Studies in Thermal Engineering
Cover cooling
Evacuated tube heater
Sustainability
Solar desalination
Thin-film evaporation
Tubular solar still
title 4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
title_full 4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
title_fullStr 4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
title_full_unstemmed 4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
title_short 4E performance assessment of innovative tubular solar still enhanced with evacuated tube heater, thin-film hanging wick, and cover cooling
title_sort 4e performance assessment of innovative tubular solar still enhanced with evacuated tube heater thin film hanging wick and cover cooling
topic Cover cooling
Evacuated tube heater
Sustainability
Solar desalination
Thin-film evaporation
Tubular solar still
url http://www.sciencedirect.com/science/article/pii/S2214157X2500526X
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