Consideration of the Change of Material Emission Signatures due to Longterm Emissions for Enhancing VOC Source Identification

K. H. Han, J. S. Zhang, Henrik Nellemose Knudsen, P. Wargocki, B. Guo

    Research output: Contribution to journalConference article in JournalResearchpeer-review

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    Abstract

    The objectives of this study were to characterize the changes of VOC material emission profiles over time and develop a method to account for such changes in order to enhance a source identification technique that is based on the measurements of mixed air samples and the emission signatures of individual building materials determined by PTRMS. Source models, including powerlaw
    model, doubleexponential decay model and mechanistic diffusion model, were employed to track the change of individual material emission signatures by PTRMS over a ninemonth period. Samples of nine typical building materials were tested individually for nine months and later in combination to obtain actual mixture emissions. VOC emissions from each material were measured in a 50liter
    smallscale chamber. Chamber air was sampled by PTRMS over a 28day period to determine their emission rate decay characteristics as well as to establish the initial profile of emission signatures unique to individual materials tested.
    Original languageEnglish
    JournalProceedings from Indoor Air 2011
    Issue number240
    Number of pages6
    Publication statusPublished - 2011

    Cite this

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    title = "Consideration of the Change of Material Emission Signatures due to Longterm Emissions for Enhancing VOC Source Identification",
    abstract = "The objectives of this study were to characterize the changes of VOC material emission profiles over time and develop a method to account for such changes in order to enhance a source identification technique that is based on the measurements of mixed air samples and the emission signatures of individual building materials determined by PTRMS. Source models, including powerlaw model, doubleexponential decay model and mechanistic diffusion model, were employed to track the change of individual material emission signatures by PTRMS over a ninemonth period. Samples of nine typical building materials were tested individually for nine months and later in combination to obtain actual mixture emissions. VOC emissions from each material were measured in a 50liter smallscale chamber. Chamber air was sampled by PTRMS over a 28day period to determine their emission rate decay characteristics as well as to establish the initial profile of emission signatures unique to individual materials tested.",
    keywords = "Material emission signature, PTR-MS, VOC, Source identification, Long-term emission",
    author = "Han, {K. H.} and Zhang, {J. S.} and Knudsen, {Henrik Nellemose} and P. Wargocki and B. Guo",
    note = "Proceedings on USB stick",
    year = "2011",
    language = "English",
    journal = "Proceedings from Indoor Air 2011",
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    Consideration of the Change of Material Emission Signatures due to Longterm Emissions for Enhancing VOC Source Identification. / Han, K. H. ; Zhang, J. S. ; Knudsen, Henrik Nellemose; Wargocki, P.; Guo, B.

    In: Proceedings from Indoor Air 2011, No. 240, 2011.

    Research output: Contribution to journalConference article in JournalResearchpeer-review

    TY - GEN

    T1 - Consideration of the Change of Material Emission Signatures due to Longterm Emissions for Enhancing VOC Source Identification

    AU - Han, K. H.

    AU - Zhang, J. S.

    AU - Knudsen, Henrik Nellemose

    AU - Wargocki, P.

    AU - Guo, B.

    N1 - Proceedings on USB stick

    PY - 2011

    Y1 - 2011

    N2 - The objectives of this study were to characterize the changes of VOC material emission profiles over time and develop a method to account for such changes in order to enhance a source identification technique that is based on the measurements of mixed air samples and the emission signatures of individual building materials determined by PTRMS. Source models, including powerlaw model, doubleexponential decay model and mechanistic diffusion model, were employed to track the change of individual material emission signatures by PTRMS over a ninemonth period. Samples of nine typical building materials were tested individually for nine months and later in combination to obtain actual mixture emissions. VOC emissions from each material were measured in a 50liter smallscale chamber. Chamber air was sampled by PTRMS over a 28day period to determine their emission rate decay characteristics as well as to establish the initial profile of emission signatures unique to individual materials tested.

    AB - The objectives of this study were to characterize the changes of VOC material emission profiles over time and develop a method to account for such changes in order to enhance a source identification technique that is based on the measurements of mixed air samples and the emission signatures of individual building materials determined by PTRMS. Source models, including powerlaw model, doubleexponential decay model and mechanistic diffusion model, were employed to track the change of individual material emission signatures by PTRMS over a ninemonth period. Samples of nine typical building materials were tested individually for nine months and later in combination to obtain actual mixture emissions. VOC emissions from each material were measured in a 50liter smallscale chamber. Chamber air was sampled by PTRMS over a 28day period to determine their emission rate decay characteristics as well as to establish the initial profile of emission signatures unique to individual materials tested.

    KW - Material emission signature

    KW - PTR-MS

    KW - VOC

    KW - Source identification

    KW - Long-term emission

    M3 - Conference article in Journal

    JO - Proceedings from Indoor Air 2011

    JF - Proceedings from Indoor Air 2011

    IS - 240

    ER -