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

Mutabe Aljaghtham, Emrah Celik

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Article number130192
JournalMaterials Letters
Volume300
DOIs
StatePublished - 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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