地下商场复合净化器安装位置的数值模拟
Numerical simulation on installation location of combined air cleaners in underground stores
摘要：
针对地下商场可能出现的污染物全面超标、局部超标等五种情况以及室内两种污染物并存的实际情况，通过数值模拟方法对复合净化器的最佳安装位置进行了研究。结果表明，应根据地下商场内的污染状况确定复合净化器的安装位置，大多数情况下宜将复合净化器安装在一次回风空调系统的回风道上，但当局部区域污染物严重超标时，宜采用在污染源附近就近设置或就近设置与回风道设置的组合方式；当复合净化器设置在污染源附近时，应根据同时并存的多种污染物的释放强度和浓度限值等因素综合确定其安装位置。
Abstract：
Studies five typical pollution states and coexistence of two contaminants in underground stores by numerical simulation to find the optimal location for combined air cleaners. The result shows that the combined air cleaners should be installed in different places under different pollution conditions. In most cases, the optimal location is on the return air duct of air conditioning system with primary return air, but when pollution is serious in local area, the location adjacent to contaminant sources or both adjacent to contaminants and on return air duct is appropriate. When combined air cleaner is located near the contaminant sources, the installation position should be determined according to releasing intensity and concentration limits of contaminants existed at the same time.
Keywords:undergroundstore,combinedaircleaner,numericalsimulation,contaminant