汚染質が不均一発生する場合の汚染質濃度場のCFD解析 : オフィス空間を対象とした規準化居住域濃度に関する研究(第2報)

概要

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The Ventilation Standard HASS 102 of The Society of Heating, Air- Conditioning and Sanitary Engineers of Japan (SHASE) was revised in November 1997. The Ventilation Standard HASS 102 recommends the ventilation design, which takes into account a ventilation effectiveness in an occupied zone, under the incompletely mixed condition. The index for considering ventilation effectiveness in the standard is called Normalized Concentration in an Occupied Zone (Cn). In this paper, the Cn values in an Occupied Zone in office space (6.4m(x)×12.8m(y)×2.7m(z)) are predicted by CFD simulation technique in several different cases. In the numerical simulation, five different ventilation systems were chosen and the concentration distributions and Cn values were investigated under three different contaminant generations. In this analysis, the differences of contaminant generation did not produce a big influence on the prediction of Cn values. The hypothesis of the uniform contaminant generation in whole space will be appropriate for the prediction of Cn in this analytical condition.
社団法人日本建築学会の論文
2004-02-28