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Interlaboratory Testing for High‐Temperature Power Generation Characteristics of a Ni‐Based Alloy Thermoelectric Module

Ziolkowski, Pawel and Chetty, Raju and Blaschkewitz, Przemyslaw and Ohtake, M. and Yamamoto, Atsushi and Müller, Eckhard (2020) Interlaboratory Testing for High‐Temperature Power Generation Characteristics of a Ni‐Based Alloy Thermoelectric Module. Energy Technology. Wiley. doi: 10.1002/ente.202000557. ISSN 2194-4288.

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Standardization of metrology for thermoelectric generator modules (TEM) is a necessary step towards an industrialization of thermoelectric applications. Unspecified uncertainty budgets of the widely used custom built characterization facilities seem insufficient to validate technological developments, industrial benchmarks or allow sound conclusions in scientific studies. Particularly, works on high-temperature TEM have to be supported by suitable characterization techniques. This shall accelerate progress towards product releases for thermoelectric energy conversion. In this article we report on a Ni-based alloy TEM which was developed at the National Institute of Advanced Industrial Science and Technology (AIST) as a prospective standard reference TEM. Comparative measurements at AIST and the German Aerospace Center (DLR) demonstrate the high repeatability and precision of custom-built TEM characterization facilities at AIST and DLR. Tests at elevated temperatures up to 773 K hot side temperature and 450 K temperature difference revealed excellent accordance of electric measurands with a standard deviation < 0.3% for the open circuit voltage and < 0.85% for electric resistance and maximum power output. Deviations of the heat flow measurement of up to 7.22% arise from individual uncertainties of the employed characterization methods and point to the importance of standardization for TEM metrology.

Item URL in elib:https://elib.dlr.de/137186/
Document Type:Article
Title:Interlaboratory Testing for High‐Temperature Power Generation Characteristics of a Ni‐Based Alloy Thermoelectric Module
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ziolkowski, PawelGerman Aerospace Center, Institute of Materials Research, Köln, GermanyUNSPECIFIED
Chetty, RajuThermoelectric Materials and Devices Laboratory, Department of Physics, Indian Institute of Science, Bangalore 560012, IndiaUNSPECIFIED
Blaschkewitz, PrzemyslawGerman aerospace center, Institute of materials research, Köln, GermanyUNSPECIFIED
Ohtake, M.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, JapanUNSPECIFIED
Yamamoto, AtsushiResearch Institute for Energy Conservation, National Institute of Advanced Industrial Science and TechnologyUNSPECIFIED
Müller, EckhardInstitute of Materials Research, German Aerospace Center (DLR), Institute of Materials Research – Thermoelectric Materials and Systems, 51147 Köln Porz-Wahnheide, Linder Höhe, Germany and Justus Liebig University Giessen, Institute of Inorganic and AnalytUNSPECIFIED
Date:4 September 2020
Journal or Publication Title:Energy Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1002/ente.202000557
Keywords:High temperature power generation, Ni-based alloy, Thermoelectric module
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Frank, Adina
Deposited On:06 Nov 2020 10:33
Last Modified:06 Nov 2020 10:33

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