Performance improvement of single slope solar distiller by using a novel corrugated–concave absorber: An experimental comparative study with energy, exergy, enviro–economic (4E), and sustainability assessments

IF 5.4 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-06-01 DOI:10.1016/j.tsep.2025.103730

Ridha Boudhiaf , Khaled Harby , Mohammed El Hadi Attia , Mohamed Abdelgaied , Majdi Amin , Zied Driss

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Abstract

This work aims to study the effect of absorber shape designs on the thermal performance of single-slope solar distillers to achieve the highest daily output and lowest production cost. Three single-slope solar distillers with different water absorber designs, flat (SSSD-FA), concave (SSSD-CA), and corrugated-concave (SSSD-CCA) were proposed, tested, and compared under the same conditions in the Sfax region, central–eastern of Tunisia. The proposed absorbers were made of the same materials and had the same dimensions. It is worth noting that the corrugated-concave absorber shape is an innovative design and has not been considered in any previous studies. The corrugated-concave absorber design features an inward concave surface with a series of grooves (waves), providing a large surface area for evaporation that is exposed to incident solar radiation compared to a flat design of the same projected area. Thus increasing the evaporation rate and daily productivity. The outcomes showed that the daily yield enhanced by 33.54 % and 60.89 %, respectively, for SSSD-CA (4.10 Lm⁻² day⁻¹) and SSSD-CCA (4.94 Lm⁻² day⁻¹) compared with that of SSSD-FA. The SSSD-CCA enhanced the daily energy efficiency by 57.81 % and 18.52 % as compared to SSSD-FA and SSSD-CA, respectively. The energy payback period for SSSD-FA, SSSD-CA, and SSSD-CCA are 1.47 years, 1.31 years, and 1.28 years, respectively. The exergy payback period for SSSD-FA, SSSD-CA, and SSSD-CCA are 33.72 years, 24.95 years, and 21.85 years, respectively. The reduction in yield cost by SSSD-CA ($0.050 L⁻¹) and SSSD-CCA ($0.042 L⁻¹) was about 26 % and 50 %, respectively, as compared to the SSSD-FA. This indicates the novelty and feasibility of using the proposed corrugated-concave basin design in increasing the performance of solar stills while reducing the cost of distillation.

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采用新型波纹-凹吸收体改善单坡太阳能蒸馏器性能：能源、能源、环境经济（4E）和可持续性评估的实验比较研究

本研究旨在研究吸收器形状设计对单坡太阳能蒸馏器热性能的影响，以达到最高日产量和最低生产成本。在突尼斯中东部的Sfax地区，提出了三种不同设计的单坡太阳能蒸馏器，分别是平面（SSSD-FA）、凹形（SSSD-CA）和波纹凹形（SSSD-CCA），并在相同的条件下进行了测试和比较。所提出的吸收器由相同的材料制成，具有相同的尺寸。值得注意的是，波纹凹形减振器的形状是一种创新的设计，在以往的研究中没有被考虑过。波纹-凹型吸收器设计的特点是具有一系列凹槽（波）的内向凹表面，与相同投影面积的平面设计相比，提供了更大的蒸发面积，暴露在入射太阳辐射下。从而提高蒸发速率和日产量。结果表明，与SSSD-FA相比，SSSD-CA （4.10 Lm−2 day−1）和SSSD-CCA （4.94 Lm−2 day−1）的日产量分别提高了33.54%和60.89%。与SSSD-FA和SSSD-CA相比，SSSD-CCA的日能效分别提高了57.81%和18.52%。SSSD-FA、SSSD-CA和SSSD-CCA的能源回收期分别为1.47年、1.31年和1.28年。SSSD-FA、SSSD-CA和SSSD-CCA的能源回收期分别为33.72年、24.95年和21.85年。与SSSD-FA相比，SSSD-CA （0.050 L−1美元）和SSSD-CCA （0.042 L−1美元）分别降低了约26%和50%的产量成本。这表明采用波纹凹槽设计在提高太阳能蒸馏器性能的同时降低蒸馏成本的新颖性和可行性。

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

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