Advertisement

Thermal Conductivity and Thermal Diffusivity Measurements of Salt Rocks by Different Methods

  • Johannes Kopietz
  • Wolfgang Neumann

Abstract

Thermal conductivity measurements are being performed on a large number of drill core samples from the boreholes for exploration of the Gorleben salt dome for nuclear waste disposal. A laboratory instrument for rapid thermal conductivity determination based on the familiar heat-flow-meter method (ASTM C518) is used for this purpose. Thermal conductivity data for selected samples from these measurements have been compared with measurements on the same samples by a comparative method under steady state longitudinal heat flow conditions. In addition, thermal diffusivity measurements were made. The comparison of the different methods was made with respect to accuracy, reproducibilty and possible measurement errors. Special emphasis was given to the thermal contact resistance within the experimental set-up.

Keywords

Heat Flow Rock Salt Thermal Contact Resistance Thermal Conductivity Measurement Thermal Diffusivity Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    Kopietz, J., Thermal conductivity measurements related to the geothermal exploration of the Gorleben salt dome, Proc. 18th ITCC, these Proceedings.Google Scholar
  2. (2).
    Comou, K.G., Tye, R.P., A laboratory instrument for rapid determination of thermal conductivities in the range 0.4 to 5 W m-1 K-l, High Temperatures — High Pressures 13: 695 (1981).Google Scholar
  3. (3).
    Francl, J., Kingery, W.D., Apparatus for deter mining thermal conductivity by a comparative method, J. Am. Ceram. Soc. 37: 80 (1954).CrossRefGoogle Scholar
  4. (4).
    Parker, J., Flash method of determining thermal diffusivity, heat capacity, and thermal conductivity, J. Appl. Phys. 32:1679 (I960).Google Scholar

Copyright information

© Purdue Research Foundation 1985

Authors and Affiliations

  • Johannes Kopietz
    • 1
    • 2
  • Wolfgang Neumann
    • 1
    • 2
  1. 1.Bundesanstalt für Geowissenschaften und RohstoffeHannoverFederal Republic of Germany
  2. 2.Österreichisches Forschungszentrum SeibersdorfWienAustria

Personalised recommendations