Work

Characterizing and predicting ultrafine particle number concentration in an office by CFD method

Year: 2008

Type: conference-paper

Abstract: This research aims to characterise ultrafine particle distribution in an office, by investigating printers and air supply units as potential sources of indoor particles. Ultrafine Particle number concentrations, as well as office characteristics such as temperature and airflow were analysed using the computational fluid dynamics (CFD) method and standard k-ε model. Our findings suggest that reasonable estimates of indoor ultrafine particle number concentration can be made by considering at both indoor and outdoor sources. It was found that the greatest ultrafine particle number concentrations were not necessarily found at locations closest to the indoor particle sources and that the concentrations close to the air inlets also displayed significant particle concentrations. Conversely, at points far away from the airflow inlets (in the corners of the room), ultrafine particle number concentration was somewhat higher, as a result of poor airflow circulation, which failed to circulate these particles for removal at the outlet.

Source: QUT ePrints (Queensland University of Technology)

Authors: Lina Wang, Lidia Morawska

Institution: Queensland University of Technology

Language: English

Topic: Indoor Air Quality and Microbial Exposure

Subfield: Health, Toxicology and Mutagenesis

Field: Environmental Science

Domain: Physical Sciences

Open Access status: green

Funder: Australian Research Council

Award: Optimisation of indoor air quality, thermal comfort and energy usage within buildings located in busy transit oriented urban developments

OpenAlex ID: W80156049