To the description of the temperature and pressure dependences of the thermal conductivity of sandstone and ceramics

Here we present the results of an experimental study of the temperature and pressure dependences of the heat conductivity of composite compounds. The thermal conductivity of sandstone was measured by the absolute stationary method for pressures up to 400 MPa in the temperature range 273-523 K. From...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2017-11, Vol.891 (1), p.12335
Main Authors: Emirov, S N, Beybalaev, V D, Gadzhiev, G G, Ramazanova, A E, Amirova, A A, Aliverdiev, A A
Format: Article
Language:English
Subjects:
Ceramics
Heat conductivity
Heat transfer
Hydrostatic pressure
Lanthanum
Lanthanum sulfide
Physics
Sandstone
Switches
Thermal conductivity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Here we present the results of an experimental study of the temperature and pressure dependences of the heat conductivity of composite compounds. The thermal conductivity of sandstone was measured by the absolute stationary method for pressures up to 400 MPa in the temperature range 273-523 K. From these experimental data we have proposed the equation describing the dependence of the thermal conductivity from the pressure and temperature. We have found that under the action of hydrostatic pressure the intensive growth of the heat-conductivity of gas-saturated sandstone is mainly up to 100 MPa, and then seamlessly switches to saturation. A comparative analysis is carried out with the experimental dependences of the thermal conductivity of ceramics (lanthanum sulfide LaS1.48).
ISSN:1742-6588
1742-6596
1742-6596
DOI:10.1088/1742-6596/891/1/012335