Investigation of effective thermoelectric properties of composite with interfacial resistance using micromechanics-based homogenisation = 균질화법에 기반한 계면 저항이 존재하는 복합재의 유효 열전 물성치 연구

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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.
Advisors
Ryu, Seung Hwaresearcher유승화researcher
Description
한국과학기술원 :기계공학과,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 2019.2,[v, 36 p. :]

Keywords

Thermoelectricity▼ahomogenisation▼ainterfacial electrical resistance▼ainterfacial thermal resistance▼aseebeck coefficient; 열전▼a균질화법▼a계면 전기 저항▼a계면 열 저항▼a지벡 계수

URI
http://hdl.handle.net/10203/265903
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=843722&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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