Investigation on Effect of Radial and Extended Fins in PCM Heat Sink for LED Cooling

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Atıf İçin Kopyala

Ramesh T., Praveen A. S., Pillai P. B., SALUNKHE S. S., Davim J. P.

Journal of Harbin Institute of Technology (New Series), cilt.30, sa.5, ss.89-98, 2023 (Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 30 Sayı: 5
• Basım Tarihi: 2023
• Doi Numarası: 10.11916/j.issn.1005-9113.2022064
• Dergi Adı: Journal of Harbin Institute of Technology (New Series)
• Derginin Tarandığı İndeksler: Scopus, ICONDA Bibliographic, zbMATH
• Sayfa Sayıları: ss.89-98
• Anahtar Kelimeler: junction temperature, LED, luminous flux, phase change material, thermal resistance
• Gazi Üniversitesi Adresli: Evet

Özet

This work focuses on the efficiency of the LED acting as the heat sink containing Phase Change Material (PCM). Three different heat sink configurations (H⁃1, H⁃2, and H⁃3) are used in this study. Input power and the number of fins are altered to find their effect on junction temperatures, luminous flux, and thermal resistance. The junction temperature of heat sink H⁃3 with PCM decreased by 3.1 % when compared with heat sink devoid of PCM at 10 W. The thermal resistance of the heat sink H⁃3 is reduced by 18.2 % when compared to its counterpart devoid of PCM at 10 W. The luminous flux of the PCM filled heat sink H⁃ 3 is found to increase by 12.15 % against the PCM not filled heat sink H⁃1 at 10 W. The H⁃3 heat sink with PCM showed superior performance because of the enhanced natural convection and conduction in bulk PCM with fins, and with added high latent heat capacity of PCM.