D111 電源装置内の圧力損失に関する簡易予測法(OS-15 電子機器・デバイスの熱問題と現状技術I)

概要

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We have measured the pressure drops in the various types of power supply units (PSUs) used for servers, PCs or other electronic equipments. Along with the measurement, the inner structures of PSUs were checked. And, it is found that the inner structures and its density of devices in PSUs are almost the same. Then, the relationship between the specification of PSU (size, power, etc.) and the range of pressure drop is intensively investigated considering the information of structure of PSUs. It is found that pressure drops in most of PSUs is roughly predictable by using the simple factors like air flow rate, width, height and depth of PSUs. The obtained correlation equation predicts the pressure drops in various PSUs within ±30%.
社団法人日本機械学会の論文
2005-11-02