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Energies 2015, 8(11), 12839-12847; doi:10.3390/en81112341

A High Temperature Experimental Characterization Procedure for Oxide-Based Thermoelectric Generator Modules under Transient Conditions

1
Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
2
PANCO GmbH, Kaerlicher Str. 7 D-56218 Muelheim-Kaerlich, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Shi Xue Dou
Received: 15 July 2015 / Revised: 1 November 2015 / Accepted: 2 November 2015 / Published: 12 November 2015
(This article belongs to the Special Issue Thermoelectric Energy Harvesting)
View Full-Text   |   Download PDF [2226 KB, uploaded 12 November 2015]   |  

Abstract

The purpose of this study is to analyze the steady-state and transient behavior of the electrical and thermal parameters of thermoelectric generators (TEGs). The focus is on the required wait-time between measurements in order to reduce measurement errors which may appear until the system reaches steady-state. By knowing this waiting time, the total characterization time can also be reduced. The experimental characterization process is performed on a test rig known as TEGeta, which can be used to assess the output characteristics of TEG modules under different load values and temperature conditions. The setup offers the possibility to control the hot side temperature up to 1000 °C with a load variation range value between 0.22–8.13 Ω. A total of ten thermocouples are placed in the setup with the purpose of measuring the temperature in specific points between the heater and the heat sink. Based on the readings, the temperature on the hot and cold side of the modules can be extrapolated. This study provides quantitative data on the minimum waiting time of the temperatures in the surrounding system to reach equilibrium. Laboratory tests are performed on a calcium-manganese oxide module at temperatures between 400 and 800 °C to explore the high temperatures features of the setup. View Full-Text
Keywords: thermoelectric (TE); thermoelectric generator (TEG); thermoelectric measuring system; temperature transient; oxide thermoelectric (TE); thermoelectric generator (TEG); thermoelectric measuring system; temperature transient; oxide
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Man, E.A.; Schaltz, E.; Rosendahl, L.; Rezaniakolaei, A.; Platzek, D. A High Temperature Experimental Characterization Procedure for Oxide-Based Thermoelectric Generator Modules under Transient Conditions. Energies 2015, 8, 12839-12847.

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