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

Elena Anamaria Man, Erik Schaltz, Lasse Rosendahl, Alireza Rezaniakolaei and Dieter Platzek
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Elena Anamaria Man: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Erik Schaltz: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Lasse Rosendahl: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Alireza Rezaniakolaei: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Dieter Platzek: PANCO GmbH, Kaerlicher Str. 7 D-56218 Muelheim-Kaerlich, Germany

Energies, 2015, vol. 8, issue 11, 1-9

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 ?. 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.

Keywords: thermoelectric (TE); thermoelectric generator (TEG); thermoelectric measuring system; temperature transient; oxide (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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