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Indoor and Built Environment
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Numerical Simulation of Indoor PM Distribution over the Whole Year by Zonal Model

B. Zhao

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China, zhaobin{at}tsinghua.org.cn

P. Wu

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

F. Song

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

D. Yan

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

X. Yang

Department of Civil, Architectural, and Environmental Engineering, University of Miami, FL, USA

X. Li

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

Y. Jiang

Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

This paper presents the simulation of indoor particulate matter (PM) distribution over the whole year by a zonal model. To make the zoning more reasonable, the zonal model divides room space based on numerical results of air age distribution using computational fluid dynamics (CFD). Then the mass balance model for PM that considers particulate deposition and re-suspension is established. Using the zonal model, the indoor PM concentration over the whole year can be analysed, an approach which may be suitable for indoor environment design and indoor air quality evaluation. Simulation results from both a single room and a multi-room case with air re-circulation and double air filtering are presented.

Key Words: Particulate matter • Indoor air quality • Zonal model • Numerical simulation • Computational fluid dynamics • Ventilation

Indoor and Built Environment, Vol. 13, No. 6, 453-462 (2004)
DOI: 10.1177/1420326X04048847
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