High-efficient cooling from a counter-flow microchannel heat sink with sinusoidal wave walls for high-performance electronic devices

Chenyu Pei, Qiang Xu, Xiaoyu Tang, Haoyuan Yu, Mengsha Wang and Liejin Guo

Energy, 2025, vol. 336, issue C

Abstract: Flow boiling heat transfer in microchannels is an efficient thermal management solution. In this work, a counter-flow microchannel with sinusoidal wave walls (CFSWM) is proposed. Compared with the traditional microchannel, the heat flux and heat transfer coefficient (HTC) of CFSWM are increased by 49 % and 103 %, respectively. A high heat dissipation of 305 W/cm2 and an HTC of 64.2 kW/(m2·K) are achieved while keeping a pressure drop below 12 kPa. The counter-flow design enhances the heat exchange between adjacent channels and delays heat transfer deterioration caused by downstream wall overheating, eliminating backflow phenomenon under all operating conditions. The pressure drop is reduced by 21 % and the coefficient of performance (COP) is increased by 36 %. The wall temperature uniformity has significantly improved, and the maximum wall temperature difference is reduced by 74 %. The sinusoidal wave wall significantly increases the effective heat transfer area and improves the liquid film evaporation efficiency, achieving a wall temperature reduction of 5.4∼9.4 °C at the same heat flux.

Keywords: Electronic devices cooling; Counter-flow microchannel; Sinusoidal wave walls; Flow boiling; Heat transfer enhancement (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544225041210
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:336:y:2025:i:c:s0360544225041210

DOI: 10.1016/j.energy.2025.138479

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().