Investigation of photovoltaic thermal performance using air jet impingement as cooling system with varying jet diameters and phase change material

IF 7.1 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Energy and Buildings Pub Date : 2025-06-01 Epub Date: 2025-03-13 DOI:10.1016/j.enbuild.2025.115596

Mays N. Shaeli , Jalal M. Jalil , Mounir Baccar

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Abstract

One of the most important factors affecting the electrical and thermal efficiency of Photovoltaic/thermal (PV/T) is the rise in their temperature due to sunlight. In this study, the experimental effect of jet cooling on solar cells with different diameters and with phase change material (PCM) as an energy storage source was investigated. Two jet diameters (5 and 8 mm) were used to test the PV cell temperature. The goal is to maximize the cooling and optimize the high efficiency of the PV panel and to achieve a hotter air outflow. The 8 mm hole diameter jet appears to be the better choice, especially during peak hours of solar irradiance. The result shows an enhancement in electrical conversion efficiency in case 8 mm, achieving a 9.4 % improvement compared with the case without jet and PCM. The thermal efficiency of diameter 8 mm is higher and it reaching to a 5 % improvement comparison in case 5 mm diameter. The experimental results were favorable when compared to the theoretical results obtained using numerical solution.

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采用不同射流直径和相变材料的空气射流冲击作为冷却系统的光伏热性能研究

影响光伏/热（PV/T）的电效率和热效率的最重要因素之一是由于阳光照射而引起的温度升高。本文研究了射流冷却对不同直径相变材料（PCM）太阳能电池的实验效果。采用两种直径（5和8 mm）的射流来测试PV电池的温度。目标是最大限度地冷却和优化光伏面板的高效率，并实现更热的空气流出。孔径8毫米的射流似乎是更好的选择，特别是在太阳辐照度的高峰时段。结果表明，在8 mm的情况下，电转换效率得到了提高，与没有射流和PCM的情况相比，提高了9.4%。直径为8mm的热效率较高，比直径为5mm的热效率提高了5%。将实验结果与数值解的理论结果进行了比较，得到了较好的结果。

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来源期刊

Energy and Buildings 工程技术-工程：土木

CiteScore

12.70

自引率

11.90%

发文量

863

审稿时长

38 days

期刊介绍： An international journal devoted to investigations of energy use and efficiency in buildings Energy and Buildings is an international journal publishing articles with explicit links to energy use in buildings. The aim is to present new research results, and new proven practice aimed at reducing the energy needs of a building and improving indoor environment quality.