TY - JOUR
T1 - Thermal radiation analysis of packed bed by a homogenization method
AU - Asakuma, Yusuke
AU - Kanazawa, Yushin
AU - Yamamoto, Tsuyoshi
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014/6
Y1 - 2014/6
N2 - Effective thermal conductivity with radiation is analyzed by the homogenization method. This method can precisely represent the microstructure of a packed bed. In this study, the effects of parameters such as the radiation emissivity, temperature and particle size of the packed bed on the conductivity have been estimated to clarify the mechanism of complex packed structure. For example, heat transfer by radiation does not dominate if the material has voids of less than 1 mm in size. Moreover, by comparing a conventional model and the homogenization method, applicability of their models were shown for estimating the effective thermal conductivity.
AB - Effective thermal conductivity with radiation is analyzed by the homogenization method. This method can precisely represent the microstructure of a packed bed. In this study, the effects of parameters such as the radiation emissivity, temperature and particle size of the packed bed on the conductivity have been estimated to clarify the mechanism of complex packed structure. For example, heat transfer by radiation does not dominate if the material has voids of less than 1 mm in size. Moreover, by comparing a conventional model and the homogenization method, applicability of their models were shown for estimating the effective thermal conductivity.
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U2 - 10.1016/j.ijheatmasstransfer.2014.01.065
DO - 10.1016/j.ijheatmasstransfer.2014.01.065
M3 - Article
AN - SCOPUS:84894733944
SN - 0017-9310
VL - 73
SP - 97
EP - 102
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
ER -