CFD analysis of ventilation effectiveness in a public transport interchange

Zhang Lin, Feng Jiang, T. T. Chow, C. F. Tsang, W. Z. Lu

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    37 Citations (Scopus)

    Abstract

    A study was conducted into the ventilation effectiveness of a ventilation system within a public transport interchange (PTI) in Hong Kong. A computational fluid dynamics (CFD), steady state computational model of the PTI was used to investigate and predict the typical pollutant emission pattern for buses. In Hong Kong, the displacement ventilation (DV) scheme is often employed for the PTI. The numerical simulation investigates the effectiveness of the DV system in removing pollutants from the occupied zone. An alternative model is proposed where the supply is located at the ceiling and the exhausts are located at the lower part of the columns. It was found that both systems could adequately ventilate the PTI; however, the ceiling based air supply system is able to provide improved thermal comfort and indoor air quality (IAQ). © 2005 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)254-261
    JournalBuilding and Environment
    Volume41
    Issue number3
    DOIs
    Publication statusPublished - Mar 2006

    Research Keywords

    • Carbon monoxide (CO)
    • Computational fluid dynamics (CFD)
    • Displacement ventilation
    • Indoor air quality (IAQ)
    • Nitrogen dioxide (NO2)
    • Public transport interchange
    • Thermal comfort
    • Ventilation effectiveness

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