STP904

    Detailed Description and Performance of a Passive Perfluorocarbon Tracer System for Building Ventilation and Air Exchange Measurements

    Published: Jan 1986


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    Abstract

    The manufacturing procedures for and the performance of a building air infiltration kit consisting of miniature passive perfluorocarbon tracer (PFT) permeation sources and passive adsorption tube samplers are described. With four PFT types available, homes and buildings with up to four separate zones can be evaluated fully under steady state conditions for the air infiltration and exfiltration rates from each zone as well as for the air exchange rates between zones using this inexpensive and nonobtrusive field kit. Complete details on deployment in homes and on gas chromatographic analysis of the passive samplers are presented. Examples of total air changes per hour (ACH) results in several studies showed average values between 0.25 to 0.64 h−1. A generalized correlation was used to characterize the leakiness of eleven homes in the United States and Canada, showing ACH dependency only on inside-outside temperature difference, on wind speed to the 1.5 power, and on a subjective terrain factor; the approach has application in evaluating weatherization performance. Details of multizone measurements in four homes provided insight into the role of attics, crawl spaces, and basements on the indoor air quality and weatherization needs for the living zone.

    Keywords:

    air infiltration, perfluorocarbon tracers, passive sampler, multizone modeling, gas chromatograph, air lekage, weatherization, indoor air quality


    Author Information:

    Dietz, RN
    Head, Tracer Technology Center, Department of Applied Science, Brookhaven National Laboratory, Upton, NY

    Goodrich, RW
    Chemical associate, technical associate, and technical specialist, Brookhaven National Laboratory, Upton, NY

    Cote, EA
    Chemical associate, technical associate, and technical specialist, Brookhaven National Laboratory, Upton, NY

    Wieser, RF
    Chemical associate, technical associate, and technical specialist, Brookhaven National Laboratory, Upton, NY


    Paper ID: STP19649S

    Committee/Subcommittee: E06.41

    DOI: 10.1520/STP19649S


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