Working Paper Article Version 1 This version is not peer-reviewed

Incorporation of Horizontal Fins into a PCM-Based Heat Sink to Enhance the Safe Operation Time: Applicable in Electronic Device Cooling

Version 1 : Received: 10 July 2020 / Approved: 11 July 2020 / Online: 11 July 2020 (15:56:19 CEST)

A peer-reviewed article of this Preprint also exists.

Mosavi, A.; Mehdizadeh, H.; Abbasian-Naghneh, S.; Kalbasi, R.; Karimipour, A.; Cheraghian, G. Incorporation of Horizontal Fins into a PCM-Based Heat Sink to Enhance the Safe Operation Time: Applicable in Electronic Device Cooling. Appl. Sci. 2020, 10, 6308. Mosavi, A.; Mehdizadeh, H.; Abbasian-Naghneh, S.; Kalbasi, R.; Karimipour, A.; Cheraghian, G. Incorporation of Horizontal Fins into a PCM-Based Heat Sink to Enhance the Safe Operation Time: Applicable in Electronic Device Cooling. Appl. Sci. 2020, 10, 6308.

Journal reference: Appl. Sci. 2020, 10, 6308
DOI: 10.3390/app10186308

Abstract

In this study, the thermal behavior of a PCM-based heat sink in the presence of horizontal fins was numerically investigated. These types of heat sink can be effective in electronic cooling applications. Independent variables included aspect ratio (AR), number of horizontal fins (n) and their length (LR), while the objective function was defined to maximize the safe operation time (tmax). The incorporation of horizontal fins has a positive effect (thermal conductivity enhancement) as well as a negative effect (latent heat reduction). Based on the results, the optimal number of horizontal fins was five. As the number of fins rises up to five, the incremental effect of thermal conductivity improvement (positive effect) was superior to the decremental effect of the latent heat reduction (negative effect), hence the objective function (tmax) improved. However, with a further increase in the number of fins upon five, the negative effect prevailed over the positive effect and therefore the safe operation time diminished.

Subject Areas

PCM-based heat sink; Operation time; Optimal; Horizontal Fin; Aspect ratio

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