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Title: Thermal conductivity measurements and modeling of ceramic fiber insulation materials

Abstract

Ceramic fiber insulation materials are used in numerous applications (e.g. aerospace, fire protection, and military) for their stability and performance in extreme environments. However, the thermal properties of these materials have not been thoroughly characterized for many of the conditions that they will be exposed to, such as high temperatures, pressures, and alternate gaseous atmospheres. The resulting uncertainty in the material properties can complicate the design of systems using these materials. In this study, the thermal conductivity of two ceramic fiber insulations, Fiberfrax T-30LR laminate and 970-H paper, was measured as a function of atmospheric temperature and compression in an air environment using the transient plane source technique. Furthermore, a model is introduced to account for changes in thermal conductivity with temperature, compression, and ambient gas. The model was tuned to the collected experimental data and results are compared. Lastly, the tuned model is also compared to published data sets taken in argon, helium, and hydrogen environments and agreement is discussed.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. 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), Office of Defense Nuclear Security (NA-70)
OSTI Identifier:
1485821
Report Number(s):
SAND-2018-12949J
Journal ID: ISSN 0017-9310; 669765
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Heat and Mass Transfer
Additional Journal Information:
Journal Volume: 129; Journal Issue: C; Journal ID: ISSN 0017-9310
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Thermal conductivity; Ceramic insulation; Fiberfrax; Transient plane source

Citation Formats

Headley, Alexander J., Hileman, Michael B., Robbins, Aron S., Piekos, Edward S., Stirrup, Emily K., and Roberts, Christine C. Thermal conductivity measurements and modeling of ceramic fiber insulation materials. United States: N. p., 2019. Web. doi:10.1016/j.ijheatmasstransfer.2018.10.060.
Headley, Alexander J., Hileman, Michael B., Robbins, Aron S., Piekos, Edward S., Stirrup, Emily K., & Roberts, Christine C. Thermal conductivity measurements and modeling of ceramic fiber insulation materials. United States. doi:10.1016/j.ijheatmasstransfer.2018.10.060.
Headley, Alexander J., Hileman, Michael B., Robbins, Aron S., Piekos, Edward S., Stirrup, Emily K., and Roberts, Christine C. Fri . "Thermal conductivity measurements and modeling of ceramic fiber insulation materials". United States. doi:10.1016/j.ijheatmasstransfer.2018.10.060.
@article{osti_1485821,
title = {Thermal conductivity measurements and modeling of ceramic fiber insulation materials},
author = {Headley, Alexander J. and Hileman, Michael B. and Robbins, Aron S. and Piekos, Edward S. and Stirrup, Emily K. and Roberts, Christine C.},
abstractNote = {Ceramic fiber insulation materials are used in numerous applications (e.g. aerospace, fire protection, and military) for their stability and performance in extreme environments. However, the thermal properties of these materials have not been thoroughly characterized for many of the conditions that they will be exposed to, such as high temperatures, pressures, and alternate gaseous atmospheres. The resulting uncertainty in the material properties can complicate the design of systems using these materials. In this study, the thermal conductivity of two ceramic fiber insulations, Fiberfrax T-30LR laminate and 970-H paper, was measured as a function of atmospheric temperature and compression in an air environment using the transient plane source technique. Furthermore, a model is introduced to account for changes in thermal conductivity with temperature, compression, and ambient gas. The model was tuned to the collected experimental data and results are compared. Lastly, the tuned model is also compared to published data sets taken in argon, helium, and hydrogen environments and agreement is discussed.},
doi = {10.1016/j.ijheatmasstransfer.2018.10.060},
journal = {International Journal of Heat and Mass Transfer},
number = C,
volume = 129,
place = {United States},
year = {2019},
month = {2}
}

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This content will become publicly available on February 1, 2020
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