Performance enhancement of double slope solar still using cylindrical fins: Experimental and numerical analysis

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2024-11-06 DOI:10.1016/j.renene.2024.121825

Sirine Dhaoui , Abdallah Bouabidi , Moataz M. Abdel-Aziz , Mohammed El Hadi Attia

{"title":"Performance enhancement of double slope solar still using cylindrical fins: Experimental and numerical analysis","authors":"Sirine Dhaoui , Abdallah Bouabidi , Moataz M. Abdel-Aziz , Mohammed El Hadi Attia","doi":"10.1016/j.renene.2024.121825","DOIUrl":null,"url":null,"abstract":"<div><div>This study explores the enhancement of a double slope solar still (DSSS) by integrating cylindrical fins on the absorber plate to improve heat transfer efficiency and water productivity. The experimental setup, made from galvanized iron sheets and insulated with a wooden box, features a glass cover angled at 34° for optimal solar radiation absorption. Testing was conducted in Gabes, Tunisia, evaluating solar radiation, wind speed, ambient temperature, and water productivity. Measurements were taken from 9:00 a.m. to 6:00 p.m., focusing on distillate yield, temperatures, and heat transfer coefficients. Both experimental and numerical analyses examined the effect of fin diameter on temperature distribution, heat transfer coefficients, and energy efficiency. Results demonstrate that the addition of fins significantly enhances both absorber and water temperatures, with the largest fin diameter (80 mm) achieving a 14.07 % increase. A validated Computational Fluid Dynamics (CFD) model showed a maximum temperature deviation of less than 3.5 °C from experimental data. The study recorded a peak energy efficiency of 71.03 % and a cumulative water productivity of 3252.55 mL/m<sup>2</sup>.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"237 ","pages":"Article 121825"},"PeriodicalIF":9.0000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Renewable Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0960148124018937","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

This study explores the enhancement of a double slope solar still (DSSS) by integrating cylindrical fins on the absorber plate to improve heat transfer efficiency and water productivity. The experimental setup, made from galvanized iron sheets and insulated with a wooden box, features a glass cover angled at 34° for optimal solar radiation absorption. Testing was conducted in Gabes, Tunisia, evaluating solar radiation, wind speed, ambient temperature, and water productivity. Measurements were taken from 9:00 a.m. to 6:00 p.m., focusing on distillate yield, temperatures, and heat transfer coefficients. Both experimental and numerical analyses examined the effect of fin diameter on temperature distribution, heat transfer coefficients, and energy efficiency. Results demonstrate that the addition of fins significantly enhances both absorber and water temperatures, with the largest fin diameter (80 mm) achieving a 14.07 % increase. A validated Computational Fluid Dynamics (CFD) model showed a maximum temperature deviation of less than 3.5 °C from experimental data. The study recorded a peak energy efficiency of 71.03 % and a cumulative water productivity of 3252.55 mL/m².

查看原文本刊更多论文

使用圆柱形翅片提高双斜面太阳能电池的性能：实验和数值分析

本研究探讨了如何通过在吸收板上集成圆柱形翅片来提高双斜面太阳能蒸发器（DSSS）的传热效率和产水量。实验装置由镀锌铁板制成，并用木箱隔热，玻璃盖的角度为 34°，以达到最佳的太阳辐射吸收效果。测试在突尼斯加贝斯进行，评估太阳辐射、风速、环境温度和水生产力。测量时间为上午 9:00 至下午 6:00，重点是蒸馏水产量、温度和传热系数。实验和数值分析都检验了翅片直径对温度分布、传热系数和能效的影响。结果表明，增加翅片可显著提高吸收器和水的温度，最大翅片直径（80 毫米）可提高 14.07%。经过验证的计算流体动力学（CFD）模型显示，与实验数据的最大温度偏差小于 3.5 °C。研究记录的峰值能效为 71.03 %，累计水生产率为 3252.55 mL/m2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.