TY - JOUR
T1 - Conductive and Radiative Heat Transfer in Foam Materials at High Temperatures
AU - Li, JE
AU - Wang, Baolin
PY - 2013
Y1 - 2013
N2 - At high temperatures, heat transfer in foams occurs by conductions through solid matrix and air as well as by thermal radiation propagating the structure. Starting from the analysis of different foam morphological structures, the body-centered cubic cell model is applied to predict the conductive and radiative properties. Both the open foams and the closed foams are analyzed. Temperature-dependency of the material properties is also taken into consideration. The Rosseland approximation is used to predict the radiativie conductivity. Effects of temperature, cell diameter and porosity on the equivalent thermal conductivity are discussed. It is found that both the temperature and the structure parameters have strong influences on the equivalent thermal conductivity.
AB - At high temperatures, heat transfer in foams occurs by conductions through solid matrix and air as well as by thermal radiation propagating the structure. Starting from the analysis of different foam morphological structures, the body-centered cubic cell model is applied to predict the conductive and radiative properties. Both the open foams and the closed foams are analyzed. Temperature-dependency of the material properties is also taken into consideration. The Rosseland approximation is used to predict the radiativie conductivity. Effects of temperature, cell diameter and porosity on the equivalent thermal conductivity are discussed. It is found that both the temperature and the structure parameters have strong influences on the equivalent thermal conductivity.
KW - Effects of temperature
KW - Equivalent conductivity
KW - Equivalent thermal conductivities
KW - High temperature
KW - Morphological structures
KW - Radiative heat transfer
KW - Rosseland approximations
KW - Temperature dependencies
KW - Crystal structure
KW - Foams
KW - Heat radiation
KW - Industrial electronics
KW - Mechanical engineering
KW - Thermal conductivity
U2 - 10.4028/www.scientific.net/AMM.431.192
DO - 10.4028/www.scientific.net/AMM.431.192
M3 - Article
VL - 431
SP - 192
EP - 197
JO - Applied Mechanics and Materials
JF - Applied Mechanics and Materials
SN - 1660-9336
ER -