Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader
- Effect of flow oscillation on thermal dispersion in a thin water-filled heat spreader
- 김성기; 김서영; 최영돈
- dispersion enhancement; flat panel display; flow oscillation; heat spreader; thermal dispersion
- Issue Date
- IEEE transactions on components and packaging technologies
- VOL 32, NO 2, 235-242
- 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.
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