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  • Summary & Details

Improved CFD Temperature Accuracy of HVAC Unit using Three Experimental Formulas

HVACユニット内温度場の実験式を用いたCFD高精度予測

Detailed Information

Author(J)1) 門脇 皓司, 2) 劉 軍, 3) 小野寺 淳, 4) 米倉 充, 5) 下山 幸治
Author(E)1) Koji Kadowaki, 2) Jun Liu, 3) Jun Onodera, 4) Mitsuru Yonekura, 5) Koji Shimoyama
Affiliation(J)1) マーレベーアサーマルシステムズジャパン, 2) マーレベーアサーマルシステムズジャパン, 3) マーレベーアサーマルシステムズジャパン, 4) マーレベーアサーマルシステムズジャパン, 5) 東北大学
Affiliation(E)1) MAHLE Behr Thermal Systems (Japan), 2) MAHLE Behr Thermal Systems (Japan), 3) MAHLE Behr Thermal Systems (Japan), 4) MAHLE Behr Thermal Systems (Japan), 5) Tohoku University
Abstract(J)CFDシミュレーションを用いたHVACユニットの高精度温度場予測に関しては、以下の3つの重要なポイントが考えられる。 (1)ヒータコアの熱交換係数、(2)混合ゾーンの乱流プラント数、(3)壁面の熱伝達係数。 本論文では、著者らのこれまでの研究で得られた上記観点における3つの実験式をCFDシミュレーションに適用することで、HVACユニット出口の気流温度を高精度予測できることを確認した。

Translation

Abstract(E)In regards to high-precision temperature field prediction of HVAC units using CFD simulation, the three key points were considered, such as (1) Heat exchange coefficient of heater core, (2) Turbulent Prandtl number in mixing zone, (3) Heat transfer coefficient on the duct surface. In the paper, three experimental formulas of the above key points which were obtained by previous studies of the authors, are employed to predict the temperature of the air flow at the HVAC unit outlet with CFD simulation, and the effect of improving simulations accuracy was confirmed.

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