Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader

Sung Ki Kim; Seo Young Kim; Young Don Choi

doi:10.1109/TCAPT.2009.2013937

Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader

Sung Ki Kim, Seo Young Kim, Young Don Choi

* Honorary professors

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

An experimental study has been implemented to investigate the effect of oscillatory flow on longitudinal heat spreading in a thin rectangular heat spreader. The impetus of the present study is to enhance the heat dispersion in a thin rectangular heat spreader for modern flat panel display devices. The experimental results show that the oscillatory flow yields the dispersion enhancement and the temperature gradient within a rectangular heat spreader is decreased significantly. The flow oscillation shows the decrease of the temperature difference between hot spot and cold region to 38.9% in vertical installation and 47.5% in horizontal installation. The experimental correlations on the heat dispersion enhancement for the installation directions are proposed as a function of the tidal displacement and the imposing frequency of the flow oscillation.

Original language	English
Pages (from-to)	235-242
Number of pages	8
Journal	IEEE Transactions on Components and Packaging Technologies
Volume	32
Issue number	2
DOIs	https://doi.org/10.1109/TCAPT.2009.2013937
Publication status	Published - 2009

Keywords

Dispersion enhancement
Flat panel display
Flow oscillation
Heat spreader
Thermal dispersion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TCAPT.2009.2013937

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abstract = "An experimental study has been implemented to investigate the effect of oscillatory flow on longitudinal heat spreading in a thin rectangular heat spreader. The impetus of the present study is to enhance the heat dispersion in a thin rectangular heat spreader for modern flat panel display devices. The experimental results show that the oscillatory flow yields the dispersion enhancement and the temperature gradient within a rectangular heat spreader is decreased significantly. The flow oscillation shows the decrease of the temperature difference between hot spot and cold region to 38.9% in vertical installation and 47.5% in horizontal installation. The experimental correlations on the heat dispersion enhancement for the installation directions are proposed as a function of the tidal displacement and the imposing frequency of the flow oscillation.",

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Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader

Abstract

Keywords

ASJC Scopus subject areas

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