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Stepwise varying width microchannel cooling device for uniform wall temperature: Experimental and numerical study

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Issue date
2015
Author
Riera Curt, Sara
Barrau, Jérôme
Omri, Mohamed
Fréchette, L. G.
Rosell Urrutia, Joan Ignasi
Suggested citation
Riera Curt, Sara; Barrau, Jérôme; Omri, Mohamed; Fréchette, L. G.; Rosell Urrutia, Joan Ignasi; . (2015) . Stepwise varying width microchannel cooling device for uniform wall temperature: Experimental and numerical study. Applied Thermal Engineering , 2015, vol. 78, p. 30-38. https://doi.org/10.1016/j.applthermaleng.2014.12.012.
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Abstract
Within the high heat extraction cooling technologies, stepwise varying width microchannel cooling schemes have demonstrated their capacity to provide high temperature uniformities with low pressure drops. In this study, a method to tailor the design of this kind of cooling device to the needs on an application is developed. The resulting geometry is experimentally tested. A global thermal resistance coefficient of 2.35$10 5 m2 K/W has been found, improving near three-fold the performance in a millimetrical scale for the same flow rate. The temperature profile of the wall temperature is quite uniform, validating the design of the cooling device. A numerical model is developed and validated through comparison with experimental results. It shows the smoothing effect of the Thermal Interface Material (TIM) on the temperature profile and the improvement of both the thermal resistance coefficient and the temperature uniformity with the increase of the flow velocity.
URI
http://hdl.handle.net/10459.1/58530
DOI
https://doi.org/10.1016/j.applthermaleng.2014.12.012
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Applied Thermal Engineering , 2015, vol. 78, p. 30-38
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  • Publicacions de projectes de recerca del Plan Nacional [2654]

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