Optimal thermal operation of liquid-cooled electronic chips

A novel framework is developed to determine the optimal operating conditions of water cooled microprocessor chips through a tradeoff between heat recovery from the coolant and the chip thermal reliability. For illustration, a manifold microchannel heat sink is evaluated experimentally and computatio...

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Veröffentlicht in:International journal of heat and mass transfer 2012-03, Vol.55 (7-8), p.1957-1969
Hauptverfasser: Sharma, Chander Shekhar, Zimmermann, Severin, Tiwari, Manish K., Michel, Bruno, Poulikakos, Dimos
Format: Artikel
Sprache:eng
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Zusammenfassung:A novel framework is developed to determine the optimal operating conditions of water cooled microprocessor chips through a tradeoff between heat recovery from the coolant and the chip thermal reliability. For illustration, a manifold microchannel heat sink is evaluated experimentally and computationally. First, a single objective optimization is demonstrated by combining the heat recovery and chip reliability into a single parameter. Then, multi-objective optimizations are performed by using Pareto optimality and Multi-Criteria Design Analysis. Using conservative guidelines, these approaches suggest that for an optimal coolant flow rate of 1l/m, optimal coolant inlet temperature lies between 40 and 50°C.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2011.11.052