Abstract
The experimental study was performed to compare the effect of heat spreading for multiple heat dissipating sources on the embedded heat pipe heat sink with copper-water heat pipes vs. a blank heat sink. Experimental and numerical studies have been conducted to investigate the effect of heat dissipating sources applied to horizontally orientated heat sinks. A heater block was designed to represent a standard IGBT module size. A single power dissipating source layout, two power dissipating sources layout and three dissipating sources layout were applied on the base plate of the heat sink. It was concluded that by increasing the heat source coverage, the performance of the embedded heat pipe heat sink approached that of the blank heat sink. Qfin 6.1 was used for numerical studies in this investigation. The standard vapor core model available in Qfin 6.1 was used to simulate the performance of the embedded heat pipes. The numerical simulations results for the heat sink with partial coverage and full coverage were in good agreement with the experimental results.
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