1121 空冷ファンのP-Q特性に関する筐体寸法および入口寸法の影響(J08-4 電子情報機器,電子デバイスの強度・信頼性評価と熱制御(4) 熱制御技術,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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This paper describes the effects of frame and inlet sizes of an electronic casing on the cooling fan performance. The performance of air-cooling fans is defined by their P-Q (Static pressure-Flow rate) characteristics. Recent studies report that P-Q characteristics of cooling fans depend considerably on their operational environments. In previous study, we evaluated P-Q characteristics including effects of frame by defining static pressure as pressure difference between chamber and air pressure. But usually, static pressure means pressure difference between backward and forward of fan. So in this study, we measured flow rate and pressure difference between the front and the rear and explored effects of frame, especially effects from area of inlet sizes. From experimental results, it was found that the fan P-Q characteristics were changed by frame, and flow rate were affected strongly by inlet sizes.
社団法人日本機械学会の論文
2008-08-02