THERMAL SCIENCE

International Scientific Journal

Subkhanverdi N. Emirov

,

Abutrab A. Aliverdiev

,

Vetlugin D. Beybalaev

,

Anise A. Amirova

ON THE TEMPERATURE AND PRESSURE DEPENDENCES OF THE EFFECTIVE THERMAL CONDUCTIVITY OF GRANITES

ABSTRACT
The results of experimental measurements of the temperature dependence of the effective thermal conductivity of various granite samples obtained by the absolute stationary method in the temperature and pressure ranges of 273-523 K and 0.1-400 MPa, respectively, are analyzed. The power-law character of the temperature dependence of the effective thermal conductivity for all measured granite samples at atmospheric pressure is established. We have shown that pressure significantly affects the power law of the temperature dependence of the effective thermal conductivity of granite samples. A low-parameter description of the temperature-pressure behavior of thermal conductivity is proposed. A correlation is established between its components.
KEYWORDS
thermal conductivity, high pressure, temperature, granites
PAPER SUBMITTED: 2020-04-08
PAPER REVISED: 2020-04-23
PAPER ACCEPTED: 2020-04-28
PUBLISHED ONLINE: 2020-05-02
DOI REFERENCE: https://doi.org/10.2298/TSCI200408176E
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 4, PAGES [2493 - 2501]
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On the temperature and pressure dependences of the effective thermal conductivity of granites

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence