Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope: Part I - Field measurements

Carey J. Simonson (Corresponding Author), Mikael Salonvaara, Tuomo Ojanen

    Research output: Contribution to journalArticleScientificpeer-review

    51 Citations (Scopus)

    Abstract

    In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.
    Original languageEnglish
    Pages (from-to)63 - 101
    Number of pages39
    JournalJournal of Thermal Envelope and Building Science
    Volume28
    Issue number1
    DOIs
    Publication statusPublished - 2004
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Mass transfer
    Gases
    Heat transfer
    Ventilation
    Moisture
    Air
    Steam
    Air quality
    Contacts (fluid mechanics)
    Water vapor
    Atmospheric humidity

    Cite this

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    title = "Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope: Part I - Field measurements",
    abstract = "In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.",
    author = "Simonson, {Carey J.} and Mikael Salonvaara and Tuomo Ojanen",
    year = "2004",
    doi = "10.1177/1097196304044395",
    language = "English",
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    Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope : Part I - Field measurements. / Simonson, Carey J. (Corresponding Author); Salonvaara, Mikael; Ojanen, Tuomo.

    In: Journal of Thermal Envelope and Building Science, Vol. 28, No. 1, 2004, p. 63 - 101.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope

    T2 - Part I - Field measurements

    AU - Simonson, Carey J.

    AU - Salonvaara, Mikael

    AU - Ojanen, Tuomo

    PY - 2004

    Y1 - 2004

    N2 - In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.

    AB - In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.

    U2 - 10.1177/1097196304044395

    DO - 10.1177/1097196304044395

    M3 - Article

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    JO - Journal of Building Physics

    JF - Journal of Building Physics

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