Control and suppression of air pressure transients in building drainage and vent systems

J. A. Swaffield, L. B. Jack, D. P. Campbell

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    Air pressure transients propagate within building drainage and vent systems due to the unsteady nature of the network flows. These low-amplitude transients may deplete the appliance water trap seals that prevent ingress of foul gases and odours into habitable space. The simulation of transient propagation and trap seal response is achieved via the method of characteristics solution of the St. Venant equations. The application of transient control and suppression methodologies to control both positive and suction pressure trap seal loss is demonstrated and the importance of trap seal retention to prevent cross contamination via the drainage network is emphasised. © 2003 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)783-794
    Number of pages12
    JournalBuilding and Environment
    Volume39
    Issue number7
    DOIs
    Publication statusPublished - Jul 2004

    Keywords

    • Building drainage
    • Surge suppression
    • Transients

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