Comparative analysis of microchannel heat sinks for thermal performance enhancement

Jawad, Dhay Abd Al Hasan and Ahmed, Sahib Shihab (2024) Comparative analysis of microchannel heat sinks for thermal performance enhancement. POLLACK PERIODICA : AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES, 19 (2). pp. 110-116. ISSN 1788-1994 (print); 1788-3911 (online)

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Abstract

This study evaluated the thermal performance of side divergence and uniform micro-channel heat sinks by comparing and contrasting them. Heat transfer and fluid flow characteristics in these micro-channel configurations were studied using computational fluid dynamics simulations employing ANSYS Fluent 2017 code for this purpose. Laminar flow through micro-channels with a Reynolds number of 207 was the subject of the investigation. The goal is to determine how side divergence affects heat dissipation efficiency concerning traditional uniform micro-channels. The results showed that the best divergence ratio is 1.5 that achieved the highest performance. The study also revealed that side divergence micro-channel heat sinks can achieve thermal performance up to 14% higher than uniform micro-channel heat sinks.

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