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  • Thermal Conductivity Measurement of Gases by the Transient Short-Hot-Wire Method

    Author(s)
    Moroe, S
    Woodfield, PL
    Fukai, J
    Shinzato, K
    Kohno, M
    Fujii, M
    Takata, Y
    Griffith University Author(s)
    Woodfield, Peter L.
    Year published
    2011
    Metadata
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    Abstract
    Measurements of the thermal conductivity of helium and hydrogen are performed using the transient short-hot-wire method. The short hot wire is made of platinum and has a diameter of about 10 m and a length of about 15 mm. It is attached by spot welding to platinum terminals with a diameter of 1.5 mm. The probe is inserted into the sample vessel that has a volume of 35 cm3 and an inner diameter of 30 mm. The thermal conductivity is evaluated by comparing a numerical solution of the heat conduction in and around the short wire with the experimentally obtained temperature rise of the wire. The measured thermal conductivities ...
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    Measurements of the thermal conductivity of helium and hydrogen are performed using the transient short-hot-wire method. The short hot wire is made of platinum and has a diameter of about 10 m and a length of about 15 mm. It is attached by spot welding to platinum terminals with a diameter of 1.5 mm. The probe is inserted into the sample vessel that has a volume of 35 cm3 and an inner diameter of 30 mm. The thermal conductivity is evaluated by comparing a numerical solution of the heat conduction in and around the short wire with the experimentally obtained temperature rise of the wire. The measured thermal conductivities show good reproducibility. Also, the measured thermal conductivities agree with the reference equations within a deviation of ? 1%.
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    Journal Title
    Experimental Heat Transfer
    Volume
    24
    Issue
    2
    Publisher URI
    http://www.tandfonline.com/doi/abs/10.1080/08916152.2010.503310
    Subject
    Mechanical Engineering not elsewhere classified
    Mechanical Engineering
    Publication URI
    http://hdl.handle.net/10072/40913
    Collection
    • Journal articles

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