多孔介质
热的
材料科学
光伏系统
多孔性
环境科学
工艺工程
工程类
复合材料
热力学
物理
电气工程
作者
Atılgan Onurcan Özşimşek,Muhammed Arslan Omar
标识
DOI:10.1016/j.renene.2024.120327
摘要
Surface temperatures of photovoltaic (PV) panels increase with solar radiation and ambient temperature. This temperature increase negatively affects the PV cell, causing the electrical efficiency of the system to decrease. Photovoltaic-thermal (PV/T) systems also provide thermal energy gain by cooling PV cells, increasing electrical conversion efficiency and lifespan. Integrating porous material into cooling pipes offers an important innovation in terms of the cooling techniques of PV panels. This study emphasizes the positive effects of porous materials by innovative approaches in this field. For this reason, in order to increase the electrical and thermal efficiency of PV cells, a porous material-supported cooling system was designed for the PV/T system and the effects of using porous materials with different properties were examined with Ansys Fluent software. As the porous density and porosity ratio of the porous material used throughout the pipe decreased, the average cell temperature decreased and the water outlet temperature increased. At a low flow rate of 0.3 L/min, it achieved an improvement of approximately 118% in thermal efficiency compared to the pipe without porous material. The porous structure containing 0.9 and 30 PPI pore density reached the highest efficiency value of 96.56% with a flow rate of 1.71 L/min.
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