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

Title
Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader
Authors
김성기김서영최영돈
Keywords
dispersion enhancement; flat panel display; flow oscillation; heat spreader; thermal dispersion
Issue Date
2009-06
Publisher
IEEE transactions on components and packaging technologies
Citation
VOL 32, NO 2, 235-242
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. Index Terms—Dispersion enhancement, flat panel display, flow oscillation, heat spreader, thermal dispersion.
URI
http://pubs.kist.re.kr/handle/201004/45522
ISSN
1521-3331
Appears in Collections:
KIST Publication > Article
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