Outdoor performance evaluation of a novel photovoltaic heat sinks to enhance power conversion efficiency and temperature uniformity
The non-uniformity of photovoltaic (PV) temperature can further deteriorate its power conversion efficiency and technical lifetime over long field exposures. This study proposed novel fins for a PV module temperature reduction and enhancing temperature uniformity. The proposed multi-level fin heat s...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd
2022
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| Online Access: | http://eprints.utem.edu.my/id/eprint/26749/2/OUTDOOR%20PERFORMANCE%20EVALUATION%20OF%20A%20NOVEL%20PHOTOVOLTAIC%20HEAT%20SINKS%20TO%20ENHANCE%20POWER%20CONVERSION%20EFFICIENCY%20AND%20TEMPERATURE%20UNIFORMITY_COMPRESSED%20%281%29.PDF http://eprints.utem.edu.my/id/eprint/26749/ https://www.sciencedirect.com/science/article/pii/S2214157X22000570 https://doi.org/10.1016/j.csite.2022.101811 |
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| Summary: | The non-uniformity of photovoltaic (PV) temperature can further deteriorate its power conversion efficiency and technical lifetime over long field exposures. This study proposed novel fins for a PV module temperature reduction and enhancing temperature uniformity. The proposed multi-level fin heat sinks (MLFHS) consist of a novel geometry of extruded aluminum material attached to the rear side of the PV module. The developed outdoor experimental setup consists of two identical 120 Wp monocrystalline PV modules; one served as a reference module for comparison against
the module with the proposed novel heat sink geometry. The temperature distributions across PV modules and the electrical parameters were then recorded and analysed. A substantial drop in the module temperature of 8.45 ◦C was observed at solar irradiance and ambient temperature of 941
W/m2 and 36.17 ◦C, respectively. As a result, the heat sink improved the overall power output up to 9.56% under outdoor operating conditions. Furthermore, the prominent effect of temperature uniformity was perceived for solar irradiance greater than 600 W/m2 and improved by 14.8%. These findings are foundational for passive cooling methodologies to guide further research and development of an efficient PV cooling methodology. |
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