Optimization of Micro-Pin-Fin Heat Sinks: Influence of Fin Geometry and Slot Size on Thermal Performance
DOI:
https://doi.org/10.48047/4y84hv78Keywords:
energy absorption, impact decelerations, crush force behaviour, plastic deformation, numerical methods and ABAQUS®.Abstract
Micro-pin-fin heat sinks have become an essential solution for effective thermal management in modern electronic devices, particularly microprocessors, which generate substantial heat during high-speed operations. The low thermal conductivity of gases poses challenges for effective heat dissipation, requiring the development of heat sinks with improved heat transfer capabilities. This research examines how variations in slot sizes and fin geometries influence the thermal and fluid flow performance of micro-pin
fin heat sinks. Various fin shapes—triangular, rectangular, elliptical, hexagonal, and square—were examined with different slot sizes (ranging from 0.1 mm to 0.5 mm) at varying Reynolds numbers (500, 1000, 5000, and 10,000).
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References
T. Coşkun and E. Çetkin, “Heat Transfer Enhancement in a Microchannel Heat Sink: Nanofluids and/or Micro Pin Fins,” Heat Transfer Engineering, vol. 41, no. 21, pp. 1818–1828, Nov. 2020, doi: 10.1080/01457632.2019.1670467.
M. W. Alam et al., “CPU heat sink cooling by triangular shape micro-pin-fin: Numerical study,” International Communications in Heat and Mass Transfer, vol. 112, Mar. 2020, doi: 10.1016/j.icheatmasstransfer.2019.104455.
F. Ismayilov, A. Akturk, and Y. Peles, “Systematic micro heat sink optimization based on hydrofoil shape pin fins,” Case Studies in Thermal Engineering, vol. 26, Aug. 2021, doi: 10.1016/j.csite.2021.101028.
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