Diurnal and seasonal variation in air exchange rates and interzonal flows measured by active tracer gas in five Danish homes

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    Abstract

    We measured the air exchange rates (AER) in up to six rooms in five naturally ventilated dwellings across four seasons using active tracer gas. Night time AER was also estimated in all bedrooms based on occupant-generated CO2. Additionally, we studied the pollutant distribution across the dwellings and airflows between rooms. AERs changed rapidly during the day and differed between rooms. Occupant behavior (window opening) strongly influenced the AERs. AERs were highest in the summer, lowest in the winter. Interzonal airflow measurements indicated that the air within a given floor is well mixed, while there is less air movement between different floors. The position of the internal doors (open/closed) had a strong influence on the air movements within the dwelling.
    Original languageEnglish
    Title of host publicationProceedings of Indoor Air 2016
    Number of pages2
    Publication date2016
    Article number1193
    Publication statusPublished - 2016
    Event14th international conference on Indoor Air Quality and Climate - Ghent, Belgium
    Duration: 3 Jul 20168 Jul 2016
    Conference number: 14

    Conference

    Conference14th international conference on Indoor Air Quality and Climate
    Number14
    Country/TerritoryBelgium
    CityGhent
    Period03/07/201608/07/2016

    Keywords

    • Residences
    • Natural ventilation
    • Tracer gas measurements
    • Spatial and temporal variation

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