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  • A miniaturized transient hot‑wire device for measuring thermal conductivity of non‑conductive fluids

    Author(s)
    Vatani, Ashkan
    Woodfield, Peter Lloyd
    Dao, Dzung Viet
    Griffith University Author(s)
    Woodfield, Peter L.
    Dao, Dzung V.
    Vatani, Ashkan
    Year published
    2016
    Metadata
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    Abstract
    This paper presents the design, fabrication and characterization of a novel transient hot-wire device for measurement of thermal conductivity of non-conductive fluids. The key features of the cell are small sample amount, simple fabrication, accurate measurement and transparency, which allows the study of both thermal and optical properties of the fluids. A 20 孭diameter platinum hot wire is symmetrically suspended along the central axis of the capsulated cell to avoid the effect from the walls. A four-point resistance measurement method was used to measure the transient resistance with high accuracy. The accuracy of the ...
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    This paper presents the design, fabrication and characterization of a novel transient hot-wire device for measurement of thermal conductivity of non-conductive fluids. The key features of the cell are small sample amount, simple fabrication, accurate measurement and transparency, which allows the study of both thermal and optical properties of the fluids. A 20 孭diameter platinum hot wire is symmetrically suspended along the central axis of the capsulated cell to avoid the effect from the walls. A four-point resistance measurement method was used to measure the transient resistance with high accuracy. The accuracy of the thermal conductivity measurement was validated with reference values and very good agreement was achieved.
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    Journal Title
    Microsystem Technologies
    DOI
    https://doi.org/10.1007/s00542-015-2574-8
    Subject
    Microtechnology
    Experimental methods in fluid flow, heat and mass transfer
    Communications engineering
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/161140
    Collection
    • Journal articles

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