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Thermal conductivity bounds for isotropic, porous materials

Abstract

To avoid potential misapplication of effective thermal conductivity models, materials that may be described as 'porous' should be divided into two classes; 'internal porosity' materials which have bubbles/pores suspended within a continuous condensed phase (e.g. sponges, foams, honeycombs), and 'external porosity' materials which include granular/particulate materials. It is proposed that the effective thermal conductivity region bounded by the Hashin-Shtrikman bounds may be divided into internal porosity and external porosity regions by the Effective Medium Theory (EMT) equation. The use of the Hashin-Shtrikman and EMT equations as porosity bounds was supported by experimental data from the literature. (author)
Authors:
Carson, J K; Lovatt, S J; [1]  Tanner, D J; [2]  Cleland, A C [3] 
  1. AgResearch Ltd., Hamilton (New Zealand)
  2. Food Science Australia, North Ryde, Sydney, NSW (Australia)
  3. IPENZ, Wellington (New Zealand)
Publication Date:
May 01, 2005
Product Type:
Journal Article
Resource Relation:
Journal Name: International Journal of Heat and Mass Transfer; Journal Volume: 48; Journal Issue: 11
Subject:
42 ENGINEERING; THERMAL CONDUCTIVITY; POROUS MATERIALS
OSTI ID:
20613026
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0017-9310; IJHMAK; TRN: GB0520566
Submitting Site:
GB
Size:
page(s) 2150-2158
Announcement Date:
Nov 07, 2005

Citation Formats

Carson, J K, Lovatt, S J, Tanner, D J, and Cleland, A C. Thermal conductivity bounds for isotropic, porous materials. United Kingdom: N. p., 2005. Web. doi:10.1016/j.ijheatmasstransfer.2004.12.032.
Carson, J K, Lovatt, S J, Tanner, D J, & Cleland, A C. Thermal conductivity bounds for isotropic, porous materials. United Kingdom. https://doi.org/10.1016/j.ijheatmasstransfer.2004.12.032
Carson, J K, Lovatt, S J, Tanner, D J, and Cleland, A C. 2005. "Thermal conductivity bounds for isotropic, porous materials." United Kingdom. https://doi.org/10.1016/j.ijheatmasstransfer.2004.12.032.
@misc{etde_20613026,
title = {Thermal conductivity bounds for isotropic, porous materials}
author = {Carson, J K, Lovatt, S J, Tanner, D J, and Cleland, A C}
abstractNote = {To avoid potential misapplication of effective thermal conductivity models, materials that may be described as 'porous' should be divided into two classes; 'internal porosity' materials which have bubbles/pores suspended within a continuous condensed phase (e.g. sponges, foams, honeycombs), and 'external porosity' materials which include granular/particulate materials. It is proposed that the effective thermal conductivity region bounded by the Hashin-Shtrikman bounds may be divided into internal porosity and external porosity regions by the Effective Medium Theory (EMT) equation. The use of the Hashin-Shtrikman and EMT equations as porosity bounds was supported by experimental data from the literature. (author)}
doi = {10.1016/j.ijheatmasstransfer.2004.12.032}
journal = []
issue = {11}
volume = {48}
place = {United Kingdom}
year = {2005}
month = {May}
}