Numerical modelling of the priming of a siphonic rainwater drainage system

S. Arthur, J. A. Swaffield

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    The operation of siphonic rainwater systems, and in particular their priming action, is described. Current industry recognized design procedures are discussed. The initial priming of a test facility developed to replicate current design practice is described in detail, and related to the expected performance of systems installed in the field. The importance, hydraulically, of several specific elements of the system operation are emphasized in terms of the priming action. Additionally, problems encountered at start-up, due to air in both the system and the inflow, are highlighted. A numerical model is discussed that represents system priming, and conclusions are drawn regarding the data presented here and how they relate to the siphonic roof drainage industry as a whole.

    Original languageEnglish
    Pages (from-to)83-91
    Number of pages9
    JournalBuilding Services Engineering Research and Technology
    Volume20
    Issue number2
    Publication statusPublished - 1999

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