Performance improvement in stepped solar still modified by sponge layer

IF 3.7 2区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING Journal of Central South University Pub Date : 2024-07-23 DOI:10.1007/s11771-024-5693-5

Mahtab Tarahomi, Saman Rashidi, Faramarz Hormozi, Shahabeddin Ashtiani

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Abstract

In this paper, the experimental investigation on the performance improvement of conventional stepped solar still is conducted. The steps are covered by the porous material to improve the performance of the conventional device and increase the evaporation rate. All the parameters, including the temperature on the glass surface, the water temperature inside the evaporation zone, and the amount of water produced in both conventional and modified stepped solar stills are measured and compared. The efficiency of two devices and their exergy efficiency have been calculated. Finally, the economic analysis of both devices has been done to check the economic feasibility of the modified device. The amount of freshwater generated during one day was 2244.4 and 3076.2 mL/m², respectively for the conventional and modified stepped solar stills. As a result, the amount of water produced in one day by modified stepped solar still is 35.5% more than the conventional one. Also, the costs for the conventional and modified stepped solar stills have been calculated as 0.0359 and 0.029 $/(L·m⁻²), respectively.

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利用海绵层改善阶梯式太阳能蒸发器的性能

本文对传统阶梯式太阳能蒸发器的性能改进进行了实验研究。多孔材料覆盖的阶梯改善了常规装置的性能，提高了蒸发率。测量并比较了所有参数，包括玻璃表面的温度、蒸发区内的水温以及传统阶梯式太阳能蒸馏器和改进型阶梯式太阳能蒸馏器的产水量。计算了两种装置的效率及其放能效率。最后，还对两种装置进行了经济分析，以检验改进装置的经济可行性。传统型和改进型阶梯式太阳能蒸馏器一天内产生的淡水量分别为 2244.4 mL/m2 和 3076.2 mL/m2。因此，改进型阶梯式太阳能蒸馏器一天的产水量比传统蒸馏器多 35.5%。此外，根据计算，传统和改进型阶梯式太阳能蒸馏器的成本分别为 0.0359 和 0.029 美元/（L-m-2）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Central South University METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

6.10

自引率

6.80%

发文量

242

审稿时长

2-4 weeks

期刊介绍： Focuses on the latest research achievements in mining and metallurgy Coverage spans across materials science and engineering, metallurgical science and engineering, mineral processing, geology and mining, chemical engineering, and mechanical, electronic and information engineering