空冷ファンのP-Q 特性に関する筺体寸法および入口寸法の影響

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  • The Effects of Frame and Inlet Sizes of Electronic Casing-Mounted Cooling Fans on Their P-Q Characteristics
  • クウレイ ファン ノ P Q トクセイ ニ カンスル キョウタイ スンポウ オヨビ イリグチ スンポウ ノ エイキョウ

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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 characteristics. Recent studies report that P-Q curves of cooling fans depend considerably on their operational environments. It is impossible for accurate CFD (Computational Fluid Dynamics) analyses to be performed on the thermal design of electronic equipments, including fans. In this study, we measured a fan performance in some frames and explored effects of environment for their P-Q characteristics, especially effects from area of frame and cooling air inlet sizes. From experimental results, it was found that the fan P-Q characteristics, especially flow rate were affected strongly by inlet sizes.

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