Evaluating Importance and Implementation of the Building Pressurization Test in Structural Fumigation Using Computer Simulations
Pressurization In a previous study, a validated Computational Fluid Dynamics (CFD) model of the structural fumigation process in a flour mill was utilized to evaluate the effect of multi year weather conditions （1996-2006) on the half-loss time (HLT) and concentration x time (Ct)product, concluding that past fumigation data should not be the primary means for quantifying the effectiveness of temporary structural sealing. In the present study, using the same CFD model the standardized building pressurization test and superposition method commonly used for heating/cooling load and indoor air quality calculations in buildings were evaluated for prediction of HLT and Ct product. A simulated test was performed in order to determine the flour mills effective leakage area. Then, the simulated mill was subjected to several fixed environmental conditions to determine the stack and wind coefficients which were necessary for the superposition calculation. The HLTs and Ct products generated by the 11-year fumigation simulations were compared with the corresponding values predicted based on the superposition method. The HLT and Ct product predictions were within ± 20 and ± 10% of the simulated values, respectively, except for one simulated fumigation. These results showed that the pressurization test and superposition method have potential application benefits for optimizing the structural fumigation process.
structural fumigation half-loss time computational fluid dynamics (CFD) building pressurization
Watcharapol Chayaprasert Dirk E.Maier Klein E.Ileleji
Department of Agricultural and Biological Engineering, Purdue University, 225 South University Stree Department of Agricultural and Biological Engineering, Purdue University, 225 South University Stree
国际会议
成都
英文
683-687
2008-09-21（万方平台首次上网日期，不代表论文的发表时间）