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

Sung Ki Kim, Seo Young Kim, Young Don Choi

Research output: Contribution to journalArticle

2 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 languageEnglish
Pages (from-to)235-242
Number of pages8
JournalIEEE Transactions on Components and Packaging Technologies
Volume32
Issue number2
DOIs
Publication statusPublished - 2009 Mar 27

Fingerprint

Spreaders
Water
Flat panel displays
Thermal gradients
Hot Temperature
Display devices

Keywords

  • Dispersion enhancement
  • Flat panel display
  • Flow oscillation
  • Heat spreader
  • Thermal dispersion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader. / Kim, Sung Ki; Kim, Seo Young; Choi, Young Don.

In: IEEE Transactions on Components and Packaging Technologies, Vol. 32, No. 2, 27.03.2009, p. 235-242.

Research output: Contribution to journalArticle

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