Investigating the effect of cooling tower height on PVT system efficiency with a four-inlet air cooling: energy and exergy analysis

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-05-31 DOI:10.1016/j.ijrefrig.2025.05.029

Mahmoud Bady , Mohammed El Hadi Attia , Abdelkrim Khelifa , Abd Elnaby Kabeel

引用次数: 0

Abstract

High operating temperatures reduce photovoltaic (PV) panel efficiency and longevity, yet few studies explore multi-inlet cooling towers for rooftop PV systems. This study investigates the impact of cooling tower height on PV efficiency using a novel four-inlet air cooling system to optimize airflow and heat dissipation. Numerical analyses assessed 1, 20, 40, 60, 80, and 100 cm tower heights, evaluating temperature reduction, electrical output, and energy efficiency. Results show taller towers enhance cooling, with thermal efficiency rising from 25 % to 55 %, electrical efficiency increasing from 8 % to 14 %, and exergy efficiency improving from 3 % to 6 % at 100 cm. These findings highlight cooling tower height as a critical design parameter for optimizing air-cooled PV systems and advancing sustainable solar solutions.

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采用四入口风冷研究了冷却塔高度对PVT系统效率的影响：能量和火用分析

高工作温度会降低光伏面板的效率和寿命，但很少有研究探讨屋顶光伏系统的多入口冷却塔。本文研究了冷却塔高度对光伏发电效率的影响，采用了一种新型的四入口空气冷却系统来优化气流和散热。数值分析评估了1、20、40、60、80和100厘米的塔高，评估了温度降低、电力输出和能源效率。结果表明，高塔提高了冷却效果，在100厘米处，热效率从25%提高到55%，电效率从8%提高到14%，火用效率从3%提高到6%。这些发现强调冷却塔高度是优化风冷光伏系统和推进可持续太阳能解决方案的关键设计参数。

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

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.