{"title":"倾斜梯级太阳能蒸馏器的多目标优化,以提高热性能和经济性","authors":"Wafae El Hafid, Yousra Jbari, Souad Abderafi","doi":"10.1016/j.applthermaleng.2025.128590","DOIUrl":null,"url":null,"abstract":"<div><div>A solar still is a promising and eco-friendly solution to address water scarcity, but its efficiency remains limited. This research aims to improve the thermal and economic performance of an inclined cascade solar still by increasing distilled water productivity and reducing production cost. The novelty of this study lies in the optimization of two design parameters, the number of baffles in the absorber plate and the insulation thickness, which have not yet been investigated in the literature. A parametric sensitivity analysis based on a Central Composite Design and used a CFD Model was conducted to evaluate the effect of these parameters on system performance. Simulations results of nine numerical experiences are then exploited to determine the optimal values using a multi-objective optimization approach combining Response Surface Methodology (RSM) and the Non-dominated Sorting Genetic Algorithm II (NSGA-II). The optimization results show that an insulation thickness of 100 mm and the10 baffles placed in the absorber plate provide the best compromise, achieving a daily productivity of 11.58 kg/m<sup>2</sup>d and a distilled water cost of 0.0088 $/kg. These results confirm the potential of an optimized inclined cascade solar still to produce low-cost fresh water and highlight its practical implications for implementing sustainable solutions, particularly suited for arid regions facing an increasing scarcity of drinking water.</div></div>","PeriodicalId":8201,"journal":{"name":"Applied Thermal Engineering","volume":"280 ","pages":"Article 128590"},"PeriodicalIF":6.9000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multi-objective optimization of an inclined cascade solar still for enhanced thermal and economic performance\",\"authors\":\"Wafae El Hafid, Yousra Jbari, Souad Abderafi\",\"doi\":\"10.1016/j.applthermaleng.2025.128590\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A solar still is a promising and eco-friendly solution to address water scarcity, but its efficiency remains limited. This research aims to improve the thermal and economic performance of an inclined cascade solar still by increasing distilled water productivity and reducing production cost. The novelty of this study lies in the optimization of two design parameters, the number of baffles in the absorber plate and the insulation thickness, which have not yet been investigated in the literature. A parametric sensitivity analysis based on a Central Composite Design and used a CFD Model was conducted to evaluate the effect of these parameters on system performance. Simulations results of nine numerical experiences are then exploited to determine the optimal values using a multi-objective optimization approach combining Response Surface Methodology (RSM) and the Non-dominated Sorting Genetic Algorithm II (NSGA-II). The optimization results show that an insulation thickness of 100 mm and the10 baffles placed in the absorber plate provide the best compromise, achieving a daily productivity of 11.58 kg/m<sup>2</sup>d and a distilled water cost of 0.0088 $/kg. These results confirm the potential of an optimized inclined cascade solar still to produce low-cost fresh water and highlight its practical implications for implementing sustainable solutions, particularly suited for arid regions facing an increasing scarcity of drinking water.</div></div>\",\"PeriodicalId\":8201,\"journal\":{\"name\":\"Applied Thermal Engineering\",\"volume\":\"280 \",\"pages\":\"Article 128590\"},\"PeriodicalIF\":6.9000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Thermal Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1359431125031825\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359431125031825","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Multi-objective optimization of an inclined cascade solar still for enhanced thermal and economic performance
A solar still is a promising and eco-friendly solution to address water scarcity, but its efficiency remains limited. This research aims to improve the thermal and economic performance of an inclined cascade solar still by increasing distilled water productivity and reducing production cost. The novelty of this study lies in the optimization of two design parameters, the number of baffles in the absorber plate and the insulation thickness, which have not yet been investigated in the literature. A parametric sensitivity analysis based on a Central Composite Design and used a CFD Model was conducted to evaluate the effect of these parameters on system performance. Simulations results of nine numerical experiences are then exploited to determine the optimal values using a multi-objective optimization approach combining Response Surface Methodology (RSM) and the Non-dominated Sorting Genetic Algorithm II (NSGA-II). The optimization results show that an insulation thickness of 100 mm and the10 baffles placed in the absorber plate provide the best compromise, achieving a daily productivity of 11.58 kg/m2d and a distilled water cost of 0.0088 $/kg. These results confirm the potential of an optimized inclined cascade solar still to produce low-cost fresh water and highlight its practical implications for implementing sustainable solutions, particularly suited for arid regions facing an increasing scarcity of drinking water.
期刊介绍:
Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application.
The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.