Journal
ENERGIES
Volume 13, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/en13010085
Keywords
solar energy; indoor test; computational fluid dynamics; photovoltaic module; passive cooling; cooling fin; metal mesh
Categories
Funding
- Ministry of Trade, Industry, and Energy (MOTIE)
- Korea Institute for Advancement of Technology (KIAT) [N062000014]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20188550000430]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20188550000430] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The electrical efficiency and durability of a photovoltaic (PV) cell degrades as its temperature increases. Accordingly, there have been continued efforts to control the cell temperature by cooling the PV module. Generally, passive PV cooling using heat sinks attached on the back of the PV module can improve the electrical efficiency. However, few experimental studies have evaluated the effect of the heat sink shape on PV cooling. Therefore, this study proposed a passive cooling technology using meshes made of iron and aluminum, and performed indoor tests using a solar simulator to analyze the cooling performance. The experimental results demonstrated that iron and aluminum meshes reduced the PV module temperature by approximately 4.35 degrees C and 6.56 degrees C, respectively. Additionally, numerical studies were performed using a computational fluid dynamics (CFD) simulation to compare the cooling fins and meshes. The numerical results showed that the cooling fins exhibited a better cooling performance than the metal mesh. However, meshes can be mass-produced and have a high structural stability against wind loads. Meshes are more likely be applied to PV systems than cooling fins if adhesion were improved.
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