Protection and thermal management of thermoelectric generator system using phase change materials: An experimental investigation

S. Ahmadi Atouei, Alireza Rezaniakolaei, A.A. Ranjbar, Lasse Aistrup Rosendahl

Research output: Contribution to journalJournal articleResearchpeer-review

71 Citations (Scopus)

Abstract

In most thermoelectric systems the thermal boundary conditions are transient, and thermal manage-ment of the system is critical to improve electrical performance of the system. In this study, effect of using phase change materials (PCM) to control the hot and cold side temperatures of a thermoelectric generator (TEG) module is investigated experimentally. In order to have a comprehensive investigation, two aluminum boxes are fabricated and filled by three types of PCM. The boxes are applied on the hot side, cold side and both sides of the TEG module in three configurations. The effect of using PCM box at different locations of the system is compared to a common TEG system without the PCM. The results show that, applying PCM box on the hot side of the TEG module not only causes that the module gen-erates voltage for longer time after removing the external heat source, it furthermore protects the module from failure due to high input thermal power. The results indicate that using PCM box as heat sink is worthy in order to enhance the net power generation, because in this case, the PCM heat sink does not need any cooling energy.
Original languageEnglish
JournalEnergy
Volume156
Pages (from-to)311-318
Number of pages8
ISSN0360-5442
DOIs
Publication statusPublished - Aug 2018

Keywords

  • Thermoelectric generato
  • Phase change materia
  • Thermal management
  • Experimental investigation

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