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Title :二相閉ループ型熱サイフォンによるCPUの冷却に関する実験的研究(熱工学,内燃機関,動力など)
Title alternative :An Experimental Study on Cooling of CPU using a Two Phase Closed Thermosyphon Loop
Authors :儀間, 悟
長田, 孝志
張, 興
藤井, 丕夫
Authors alternative :Gima, Satoru
Nagata, Takashi
Zhang, Xing
Fujii, Motoo
Issue Date :25-Jun-2004
Abstract :This paper reports on indirect cooling of high-power CPU of notebook computers using a two phase closed thermosyphon loop with Fluorinert (FC-72) as the working fluid. The experimental set-up consists of an evaporator and a condenser connected by flexible tubing. The evaporator corresponds to a high-power CPU, and the condenser represents a cooling plate located behind the display of notebook computer. The evaporator and the condenser have the outer dimensions of 50mm×50mm×20mm and 150mm×200mm×20mm, respectively. The effects of the heat input Q and the charged volume of Fluorinert liquid F on the heat transfer characteristics of the cooling system were studied experimentally. Further, the experiments using several types of evaporators to enhance the boiling in the evaporator were carried out. It has been confirmed that the back surface temperature of the evaporator with plate fin of roughness surface by blast (Type D) reduces about 18% in comparison with that of the evaporator without fin (Type A). In the case of the evaporator Type D, the temperature difference between the evaporator back surface and ambient is kept around 55K for the highest heat input Q=30W in the present experiments.
Type Local :雑誌掲載論文
ISSN :03875016
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/229
Citation :日本機械学会論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B Vol.70 no.694 p.118 -123
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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