テストチャンバー実験及びCFD解析によるMedium Density Fiberboardにおける物質伝達率が放散速度に与える影響の検討 : ホルムアルデヒド放散量測定用テストチャンバー法に関する研究

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The aim of this research is to demonstrate that Formaldehyde (HCHO) emission rates of porous materials are influenced strongly by coefficient of air change performance within test chamber. For the study, a full-scale stainless chamber (19.68m^3), a boundary layer type test small chamber (0.4m^3), and a field and laboratory emission cell (FLEC, 3.5×10^<-5>m^3) are used. The paper presents results of measurements of HCHO emission rates from Medium Density Fiberboard (MDF, JIS grade E2) in the three different chambers. The coefficient of air change performance within the three chambers is examined by CFD analysis. The pore volume fraction and tortuosity factor of MDF are measured by mercury intrusion porosimetry (MIP) method. The Knudsen diffusion within MDF could be ignored. The convection mass transfer coefficient of HCHO from MDF is computed by CFD and emission experiment. It is demonstrated that the convection resistance over the Boundary surface of porous materials could not be ignored when compared with the diffusion resistance.
社団法人日本建築学会の論文
2004-08-30