Author Identifier
Hussein A. Mohammed: https://orcid.org/0000-0002-8730-3674
Document Type
Journal Article
Publication Title
Journal of Advanced Research in Numerical Heat Transfer
Volume
34
Issue
1
First Page
75
Last Page
87
Publisher
Penerbit Akademia Baru
School
School of Engineering
Abstract
The advancement in the micro electro mechanical system, MEMS, had been utilized for several years before. This embarked on the compact and high density of power generation for tiny devices. This led to the development of a heat dissipating system for high-power-density devices. Hence, the work intends to simulate the fluid flow performance of interrupted minichannel heat sinks due to the redeveloping and interrupting of the boundary layer merging in previous work that augments the heat dissipation. The study is conducted through numerical work of laminar steady flow, by governing the Navier-Stokes and energy equation. Three interrupted minichannel heat sinks were investigated and compared with a straight channel as the baseline by varying the Reynold number, Re and the heat supplied, Q. Meanwhile, three types of coolant fluids; propylene glycol-water, pgw-water, and ZnO-water (2%) were examined. Validation was performed to compare the pressure drop and Nusselt number, Nu which deviated between 0.49% to 9.81%, and 1.08% to 12.48% respectively. The flow is controlled to satisfy the range of Re and Q at which 510.9 < Re <610.8 and 79.2< Q < 297 respectively. At various Re and Q, Design C was the best use for pgw-water, and Design B for ZnO-water. The general performance, GP for pgwwater and ZnO-water were predicted to be 1.2 to 1.9, and 0.7 to 1.5 respectively at various Re. Furthermore, as Q varied, GP was 1.2 to 1.6, and 1.3 to 1.7 respectively.
DOI
10.37934/arnht.34.1.7587
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Comments
Tokit, E. M., Yusoff, M. Z., & Mohammed, H. A. (2025). Performance of interrupted minichannel heat sink using various coolant fluids. Journal of Advanced Research in Numerical Heat Transfer, 34(1), 75–87. https://doi.org/10.37934/arnht.34.1.7587