Date

2020-01-01

Author

Ataer, S. Kaancan
Yamali, Cemil
Albayrak, Kahraman

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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In this research, the metal foams with 4,8,16 pores/cm, an aluminium foam which has 0.93 porosity and a copper foam which has 0.90 porosity that are integrated into a heat sink with a special geometry were designed and tested. During the process of the experiments, the thermal resistances and the pressure losses of the metal foam integrated heat sinks were tested by applying different heat fluxes (10.67, 15.75, 21.33 and 31.50 kW/m(2)) and two distinct frontal air velocities (4 and 6 m/s) to the specimens. The differences in the thermal performances of the heat sinks were observed by enforcing the custom-made manufactured heaters. The test results demonstrate that the pressure drop of the foam heat sinks is approximately four times more than the fin block; the average convection heat transfer coefficients of foam heat sinks are not dependent to the heater loads and the base plate temperatures of the foam sections were 1 to 1.5 degree lower than the foamless sections. This heat sink design provides lower temperatures on the desired locations of the electrical components than a conventional type fin block.

Subject Keywords

Copper foam, Aluminum foam, Soldering method, Forced convection, Conduction, Thermal management

URI

https://hdl.handle.net/11511/53852

Collections

Graduate School of Natural and Applied Sciences, Article