期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 144, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2019.118620
关键词
Thermoelectricity; Homogenisation; Interfacial electrical resistance; Interfacial thermal resistance
资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT (MSIT) of the Republic of Korea [2019R1A2C4070690, 2016M3D1A1 900038]
- KAIST-funded Global Singularity Research Program for 2019 [N11190118]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade Industry & Energy (MOTIE) of the Republic of Korea [20162000000910]
- Korea Electrotechnology Research Institute (KERI) Primary research program through the National Research Council of Science & Technology (NST) - the MSIT of the Republic of Korea [19-12-N0101-22]
- Korea Evaluation Institute of Industrial Technology (KEIT) [19-12-N0101-22] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2019R1A2C4070690] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We obtained the analytical expression for the effective thermoelectric properties and dimensionless figure of merit of a composite with interfacial electrical and thermal resistances using a micromechanics-based homogenisation. For the first time, we derived the Eshelby tensor for a spherical inclusion as a function of the interfacial resistances and obtained the solutions of the effective Seebeck coefficient and the electrical and thermal conductivities of a composite, which were validated against finite-element analysis (FEA). Our analytical predictions well match the effective properties obtained from FEA with an inclusion volume fraction up to 15%. Because the effective properties were derived with the assumption of a small temperature difference, we discuss a heuristic method for obtaining the effective properties in the case where a thermoelectric composite is subjected to a large temperature difference. (C) 2019 Elsevier Ltd. All rights reserved.
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