Optimization configuration of cylinder-shaped magnets for augmenting the performance of conical stills

IF 6.2 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2026-03-01 Epub Date: 2025-12-02 DOI:10.1016/j.icheatmasstransfer.2025.110174

Mohammed El Hadi Attia , M. Koraiem M. Handawy , K. Harby , Mohamed Benghanem , Mohamed Abdelgaied

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引用次数: 0

Abstract

Most countries face increasing challenges in providing drinkable water due to the scarcity of water resources and the high costs of conventional desalination technologies that rely on fossil fuels. Solar stills are considered one of the most important sustainable and low-cost solutions; however, their limited productivity and efficiency restrict large-scale deployment. In this study, a traditional conical solar still (TCSS) was enhanced by incorporating low-cost cylindrical magnets (CSS-CSM&1, CSS-CSM&3, CSS-CSM&5, and CSS-CSM&7) to modify water molecule behavior and improve heat transfer. The systems were evaluated through comprehensive 6E analysis along with two sustainability indicators. The results showed that water productivity increased by 23.3 %, 41.9 %, 64.5 %, and 85.8 % for CSS-CSM&1, CSS-CSM&3, CSS-CSM&5, and CSS-CSM&7, respectively, compared to the TCSS. Thermal efficiency improved from 35.5 % in the TCSS to 45.5 %, 52.0 %, 60.3 %, and 67.9 %, corresponding to relative increases of 28.4 %, 46.5 %, 70.1 %, and 91.5 %. Exergy efficiency rose by 41.8 %, 104.4 %, 176.8 %, and 249.1 %, respectively. The cost of production (CPL) decreased by 12.4 %, 18.3 %, 24.6 %, and 28.9 %, while the payback period was shortened from 76 days (TCSS) to 66, 62, 57, and 54 days. Environmentally, net lifetime CO₂ mitigation increased from 18.8 tons (TCSS) to 24.2, 27.8, 32.1, and 36.1 tons for the modified solar stills, resulting in carbon credit returns of 273.13 $, 351.33 $, 402.66$, 464.94$, and 523.42$, respectively. Furthermore, the Sustainability Index (SI) improved from 1.02 (TCSS) to 1.06 (CSS-CSM&7), while the Improvement Potential (IP) decreased from 2050.23 to 1893.12.

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提高锥形蒸馏器性能的圆柱形磁体优化配置

大多数国家在提供饮用水方面面临越来越大的挑战，这是由于水资源短缺和依赖化石燃料的传统海水淡化技术成本高昂。太阳能蒸馏器被认为是最重要的可持续和低成本的解决方案之一；然而，它们有限的生产力和效率限制了大规模部署。在本研究中，通过加入低成本的圆柱形磁体（CSS-CSM&1, CSS-CSM&3, CSS-CSM&；5和CSS-CSM&；7）来改进传统的锥形太阳能still (TCSS)，以改变水分子的行为并改善传热。通过综合6E分析和两个可持续性指标对这些系统进行了评估。结果表明，与TCSS相比，CSS-CSM&1、CSS-CSM&3、CSS-CSM&；5和CSS-CSM&；7的水分生产力分别提高了23.3%、41.9%、64.5%和85.8%。热效率从TCSS的35.5%提高到45.5%、52.0%、60.3%和67.9%，分别相对提高28.4%、46.5%、70.1%和91.5%。能源效率分别提高41.8%、104.4%、176.8%和249.1%。生产成本（CPL）分别下降12.4%、18.3%、24.6%和28.9%，投资回收期由76 d （TCSS）缩短为66、62、57和54 d。在环境方面，改进后的太阳能蒸馏器的净寿命CO₂减少量从18.8吨（TCSS）增加到24.2吨、27.8吨、32.1吨和36.1吨，碳信用回报分别为273.13美元、351.33美元、402.66美元、464.94美元和523.42美元。可持续发展指数（SI）从1.02 （TCSS）提高到1.06 (CSS-CSM&7)，而改善潜力（IP）从2050.23下降到1893.12。

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.