STP1205: Modeling Radon Transport in Multistory Residential Buildings

    Persily, AK
    Group leader, National Institute of Standards and Technology (NIST), Building and Fire Research Laboratory, Gaithersburg, MD

    Pages: 17    Published: Jan 1993


    Abstract

    Radon concentrations have been studied extensively in single-family residential buildings, but relatively little work has been done in large buildings, including multistory residential buildings. The phenomena of radon transport in multistory residential buildings is made more complicated by the multizone nature of the airflow system and the numerous interzone airflow paths that must be characterized in such a system. This paper presents the results of a computer simulation of airflow and radon transport in a twelve-story residential building. Interzone airflow rates and radon concentrations were predicted using the multizone airflow and contaminant dispersal program CONTAM88. Limited simulations were conducted to study the influence of two different radon source terms, indoor-outdoor temperature difference and exterior wall leakage values on radon transport and radon concentration distributions.

    Keywords:

    airflow, contaminant dispersal, indoor air quality, multizone, radon, residential buildings


    Paper ID: STP13111S

    Committee/Subcommittee: D22.01

    DOI: 10.1520/STP13111S


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