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Development of a thermoelectric module suitable for vehicles and based on CoSb3 manufactured close to production

Klein Altstedde, Mirko und Sottong, R. und Freitag, Thomas Oliver und Kober, Martin und Dreißigacker, Volker und Zabrocki, K. und Szabo, P. (2014) Development of a thermoelectric module suitable for vehicles and based on CoSb3 manufactured close to production. 4th Thermoelectrics Conference - IAV, 2014-12-10 - 2014-12-12, Germany, Berlin.

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Kurzfassung

Despite the ongoing electrification of vehicle propulsion systems, vehicles with combustion engines will continue to bear the brunt of passenger services world-wide for the next few decades. As a result, the DLR Institute of Vehicle Concepts, the Institute of Materials Research and the Institute of Technical Thermodynamics have focused on utilising the exhaust heat of internal combustion engines by means of thermoelectric generators (TEGs). Their primary goal is the development of cost-efficient TEGs with long-term stability and maximised energy yield. In addition to the overall TEG system design, the development of long-term stable, efficient thermoelectric modules (TEMs) for high-temperature applications is a great challenge. This paper presents the results of internal development work and reveals an expedient module design for use in TEGs suitable for vehicles. The TEM requirements identified, which were obtained by means of experiments on the test vehicle and test bench, are described first. Doped semiconductor materials were produced and characterised by production methods capable of being scaled up in order to represent series application. The results in terms of thermoelectric properties (Seebeck coefficient, electrical conductivity and thermal conductivity) were used for the simulative design of a thermoelectric module using a constant-property model and with the aid of FEM calculations. Thermomechanical calculations of material stability were carried out in addition to the TEM's thermodynamic and thermoelectric design. The film sequence within the module represented a special challenge. Multilayer films facilitated adaptation of the thermal and mechanical properties of plasma-sprayed films. A joint which dispenses with solder additives was also possible using multilayer films. The research resulted in a functionally-optimised module design, which was enhanced for use in motor vehicles using process flexibility and close-to-production manufacturing methods.

elib-URL des Eintrags:https://elib.dlr.de/94674/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Development of a thermoelectric module suitable for vehicles and based on CoSb3 manufactured close to production
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Klein Altstedde, MirkoMirko.KleinAltstedde (at) dlr.de
Sottong, R.German Aerospace Center, Institute of Materials Research, Köln, Germany
Freitag, Thomas Oliverthomas.freitag (at) dlr.dehttps://orcid.org/0000-0003-3859-1822
Kober, Martinmartin.kober (at) dlr.dehttps://orcid.org/0000-0001-6988-5159
Dreißigacker, Volkervolker.dreissigacker (at) dlr.de
Zabrocki, K.German Aerospace Center, Institute of Materials Research, Köln, Germany
Szabo, P.
Datum:Dezember 2014
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Thermoelectric Module, Thermoelectric Generator, Waste heat recovery, Thermomechanics
Veranstaltungstitel:4th Thermoelectrics Conference - IAV
Veranstaltungsort:Germany, Berlin
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:10 Dezember 2014
Veranstaltungsende:12 Dezember 2014
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Fahrzeugenergiesystem III (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Fahrzeugkonzepte > Alternative Energiewandler
Institut für Werkstoff-Forschung > Thermoelektrische Materialien und Systeme
Institut für Technische Thermodynamik > Elektrochemische Energietechnik
Hinterlegt von: Klein Altstedde, Mirko
Hinterlegt am:19 Jan 2015 09:10
Letzte Änderung:24 Apr 2024 20:00

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