What is it about?

This work presents the design of microchannel heat sinks using topology optimization. The optimized 2D designs are able to satisfy heat transfer requirement with low pressure drop penalty. Parametric study for different velocities and temperature constraints is also performed. The optimized structures are then analyzed by 3D CFD simulation under geometry constraints. Optimized conventional straight channel heat sinks are used as the benchmark cases. Also, an experimental test loop is built to validate and compare the performance of the topology optimized heat sinks and straight channel heat sinks. The performance comparison shows that the topology optimized heat sinks could save up to 50.9% pumping power under the same thermal performance requirement.

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Why is it important?

The performance of topology optimized heat sinks is carefully validated by experiment.

Perspectives

Performance comparison made with optimized conventional microchannel heat sinks shows the superior performance of topology optimized microchannel heat sinks.

Executive Director PS Lee
National University of Singapore

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This page is a summary of: Topology optimization of liquid-cooled microchannel heat sinks: An experimental and numerical study, International Journal of Heat and Mass Transfer, October 2019, Elsevier, DOI: 10.1016/j.ijheatmasstransfer.2019.07.051.
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