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Setting up a transient hot wire device to determine the thermal conductivity of fluids.

Number: 204

Author(s) : CALVINO U., PRADO J. I., LUGO L.

Summary

The lack of a standard experimental procedure to determine thermal conductivity of complex fluids is noticeable in the study of heat transfer processes from practical and fundamental perspectives. Researchers have been using a wide variety of techniques leading to huge discrepancies in the values reported in the literature. Among them, one of the most used is the transient hot wire method, based on a linear heat source embedded in the test material. In this study, a recent transient hot wire based device was set up and checked by means of testing some extensively studied fluids in the literature that covers a thermal conductivity range from 0.1 to 0.7 W m-1 K-1. Thermal conductivities were tested in the temperature range from 283.15 to 333.15 K. Repeatibilities and deviations between the reported values and those from the literature are discussed.

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Pages: 7

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Details

  • Original title: Setting up a transient hot wire device to determine the thermal conductivity of fluids.
  • Record ID : 30028046
  • Languages: English
  • Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
  • Publication date: 2020/11/11

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