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Title: Effects of building lift-up design on pedestrian pollutant dispersion
Authors: Xia, Q
Liu, X
Niu, J 
Kwok, KCS
Keywords: Lift-up design
Line source
Pedestrian-level pollutant dispersion
Wind tunnel
Issue Date: 2014
Publisher: International Society of Indoor Air Quality and Climate
Source: Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate, 2014, p. 984-991 How to cite?
Abstract: This study focuses on the pedestrian-level wind environment and pollutant dispersion from an upstream or downstream line source representing vehicular emission from a line of stopped buses. Buildings with a lift-up design may have a number of impacts on the pedestrian-level wind and pollutant dispersion environment. Three building configurations that resulted in the lowest wind speed zones were identified from a previous study. A 3.5 meter high open ground floor was added to each of the three configurations, and scale models of the three designs were studied in a wind tunnel to assess their influences on airflow, ventilation and pollutant dispersion around the buildings. Undesirable areas of low wind speed and excessively high wind at the other extreme, pollutant dispersions from the respective line sources upstream and downstream were compared, and the practical implications to the wind and thermal comfort and pollutant dispersions are discussed.
Description: 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014, Hong Kong, 7-12 July 2014
Appears in Collections:Conference Paper

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