Energy conversion and thermal reliability of thermoelectric materials in unileg annular configuration

Mutabe Aljaghtham; Emrah Celik

doi:10.1016/j.matlet.2021.130192

Energy conversion and thermal reliability of thermoelectric materials in unileg annular configuration

Mutabe Aljaghtham, Emrah Celik

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Increasing temperature gradients are desired in thermoelectric (TE) systems to produce higher amounts of power. However, high temperatures lead to increased thermal stresses impacting the reliability of TE materials. Stresses are more pronounced in annular systems despite their space saving advantages compared to flat configurations. One possible solution to reduce thermal stress problem is utilizing single material (unileg) TE module instead of dual material (unicouple) system. This study introduces unileg, annular TE configuration for the first time. The results indicate that replacing flat TE system in exhaust pipe with annular configuration can increase TE performance and thermal stresses can be reduced significantly.

Original language	English (US)
Article number	130192
Journal	Materials Letters
Volume	300
DOIs	https://doi.org/10.1016/j.matlet.2021.130192
State	Published - Oct 1 2021

Keywords

Energy harvesting
Thermal stress
Thermoelectric material
Unileg configuration

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2021.130192

Cite this

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title = "Energy conversion and thermal reliability of thermoelectric materials in unileg annular configuration",

abstract = "Increasing temperature gradients are desired in thermoelectric (TE) systems to produce higher amounts of power. However, high temperatures lead to increased thermal stresses impacting the reliability of TE materials. Stresses are more pronounced in annular systems despite their space saving advantages compared to flat configurations. One possible solution to reduce thermal stress problem is utilizing single material (unileg) TE module instead of dual material (unicouple) system. This study introduces unileg, annular TE configuration for the first time. The results indicate that replacing flat TE system in exhaust pipe with annular configuration can increase TE performance and thermal stresses can be reduced significantly.",

keywords = "Energy harvesting, Thermal stress, Thermoelectric material, Unileg configuration",

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AU - Aljaghtham, Mutabe

AU - Celik, Emrah

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N2 - Increasing temperature gradients are desired in thermoelectric (TE) systems to produce higher amounts of power. However, high temperatures lead to increased thermal stresses impacting the reliability of TE materials. Stresses are more pronounced in annular systems despite their space saving advantages compared to flat configurations. One possible solution to reduce thermal stress problem is utilizing single material (unileg) TE module instead of dual material (unicouple) system. This study introduces unileg, annular TE configuration for the first time. The results indicate that replacing flat TE system in exhaust pipe with annular configuration can increase TE performance and thermal stresses can be reduced significantly.

AB - Increasing temperature gradients are desired in thermoelectric (TE) systems to produce higher amounts of power. However, high temperatures lead to increased thermal stresses impacting the reliability of TE materials. Stresses are more pronounced in annular systems despite their space saving advantages compared to flat configurations. One possible solution to reduce thermal stress problem is utilizing single material (unileg) TE module instead of dual material (unicouple) system. This study introduces unileg, annular TE configuration for the first time. The results indicate that replacing flat TE system in exhaust pipe with annular configuration can increase TE performance and thermal stresses can be reduced significantly.

KW - Energy harvesting

KW - Thermal stress

KW - Thermoelectric material

KW - Unileg configuration

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Energy conversion and thermal reliability of thermoelectric materials in unileg annular configuration

Abstract

Keywords

ASJC Scopus subject areas

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