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Uncertainty of the Thermal Conductivity Measurement Using the Transient Hot Wire Method

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Abstract

This work deals with uncertainty analysis of the thermal conductivity measurement using the transient hot wire method. The characterization is made from a sample of low-density, polyethylene BRALEN SA 200-22. The utilized experimental data are obtained from the test measurements performed on the air at room temperature. The sources of measurement errors are analyzed and the uncertainty of the measured value of the thermal conductivity is evaluated. The analysis shows that in the present case the uncertainty of the thermal conductivity measurement is about ±3.3% for 68% confidence level.

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Authors and Affiliations

  1. Department of Physics, Faculty of Natural Sciences, Constantine the Philosopher University, Tr. A. Hlinku 1, SK-94974, Nitra, Slovak Republic

    G. Labudová

  2. Department of Physics, Faculty of Mechanical Engineering, Slovak Agricultural University, Tr. A. Hlinku 2, SK-94976, Nitra, Slovak Republic

    V. Vozárová

Authors
  1. G. Labudová
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  2. V. Vozárová
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Labudová, G., Vozárová, V. Uncertainty of the Thermal Conductivity Measurement Using the Transient Hot Wire Method. Journal of Thermal Analysis and Calorimetry 67, 257–265 (2002). https://doi.org/10.1023/A:1013774922355

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  • DOI: https://doi.org/10.1023/A:1013774922355

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