Experimental determination of single-crystal halite thermal conductivity, diffusivity and specific heat from -75°C to 300°C
Abstract
The thermal properties of halite have broad practical importance, from design and long-term modeling of nuclear waste repositories to analysis and performance assessment of underground natural gas, petroleum and air storage facilities. Using a computer-controlled transient plane source method, single-crystal halite thermal conductivity, thermal diffusivity and specific heat were measured from -75°C to 300°C. These measurements reproduce historical high-temperature experiments and extend the lower temperature extreme into cryogenic conditions. Measurements were taken in 25-degree increments from -75°C to 300°C. Over this temperature range, thermal conductivity decreases by a factor of 3.7, from 9.975 to 2.699 W/mK , and thermal diffusivity decreases by a factor of 3.6, from 5.032 to 1.396 mm²/s. Specific heat does not appear to be temperature dependent, remaining near 2.0 MJ/m³K at all temperatures. This work is intended to develop and expand the existing dataset of halite thermal properties, which are of particular value in defining the parameters of salt storage thermophysical models. The work was motivated by a need for thermal conductivity values in a mixture theory model used to determine bulk thermal conductivity of reconsolidating crushed salt.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1235912
- Alternate Identifier(s):
- OSTI ID: 1422678
- Report Number(s):
- SAND-2014-16353J
Journal ID: ISSN 1365-1609; PII: S1365160915001136
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Rock Mechanics and Mining Sciences
- Additional Journal Information:
- Journal Volume: 78; Journal Issue: C; Journal ID: ISSN 1365-1609
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; single crystal halite; thermal conductivity; diffusivity; specific heat; rock mechanics
Citation Formats
Urquhart, Alexander, and Bauer, Stephen. Experimental determination of single-crystal halite thermal conductivity, diffusivity and specific heat from -75°C to 300°C. United States: N. p., 2015.
Web. doi:10.1016/j.ijrmms.2015.04.007.
Urquhart, Alexander, & Bauer, Stephen. Experimental determination of single-crystal halite thermal conductivity, diffusivity and specific heat from -75°C to 300°C. United States. https://doi.org/10.1016/j.ijrmms.2015.04.007
Urquhart, Alexander, and Bauer, Stephen. Tue .
"Experimental determination of single-crystal halite thermal conductivity, diffusivity and specific heat from -75°C to 300°C". United States. https://doi.org/10.1016/j.ijrmms.2015.04.007. https://www.osti.gov/servlets/purl/1235912.
@article{osti_1235912,
title = {Experimental determination of single-crystal halite thermal conductivity, diffusivity and specific heat from -75°C to 300°C},
author = {Urquhart, Alexander and Bauer, Stephen},
abstractNote = {The thermal properties of halite have broad practical importance, from design and long-term modeling of nuclear waste repositories to analysis and performance assessment of underground natural gas, petroleum and air storage facilities. Using a computer-controlled transient plane source method, single-crystal halite thermal conductivity, thermal diffusivity and specific heat were measured from -75°C to 300°C. These measurements reproduce historical high-temperature experiments and extend the lower temperature extreme into cryogenic conditions. Measurements were taken in 25-degree increments from -75°C to 300°C. Over this temperature range, thermal conductivity decreases by a factor of 3.7, from 9.975 to 2.699 W/mK , and thermal diffusivity decreases by a factor of 3.6, from 5.032 to 1.396 mm²/s. Specific heat does not appear to be temperature dependent, remaining near 2.0 MJ/m³K at all temperatures. This work is intended to develop and expand the existing dataset of halite thermal properties, which are of particular value in defining the parameters of salt storage thermophysical models. The work was motivated by a need for thermal conductivity values in a mixture theory model used to determine bulk thermal conductivity of reconsolidating crushed salt.},
doi = {10.1016/j.ijrmms.2015.04.007},
journal = {International Journal of Rock Mechanics and Mining Sciences},
number = C,
volume = 78,
place = {United States},
year = {Tue May 19 00:00:00 EDT 2015},
month = {Tue May 19 00:00:00 EDT 2015}
}
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