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Thermoelectrics – An Opportunity for the Automotive Industry?

  • The paper looks at the key issues in terms of what thermoelectrics (TE) can and must do for the automotive industry through to 2020+. A brief introduction to the topic of waste heat recuperation and thermoelectric generators (TEG) is followed in the first section of the paper by an illustration of the potential offered by a fictive TEG ideally rated for use in the exhaust system of a passenger car with conventional powertrain, with an estimate of possible benefits and costs. This begins by asking which minimum contribution a new technology has to provide for it to be included by the automotive industry in the package of measures needed to achieve future CO2 targets. A proposal is presented as the basis for the subsequent observations. The paper then looks at the necessary material/module efficiency and the required mean ZT value as well as availability. This is followed by a brief description of the objective, consortium, job split, contents and scope together with a summary of selected results obtained with the consortiumThe paper looks at the key issues in terms of what thermoelectrics (TE) can and must do for the automotive industry through to 2020+. A brief introduction to the topic of waste heat recuperation and thermoelectric generators (TEG) is followed in the first section of the paper by an illustration of the potential offered by a fictive TEG ideally rated for use in the exhaust system of a passenger car with conventional powertrain, with an estimate of possible benefits and costs. This begins by asking which minimum contribution a new technology has to provide for it to be included by the automotive industry in the package of measures needed to achieve future CO2 targets. A proposal is presented as the basis for the subsequent observations. The paper then looks at the necessary material/module efficiency and the required mean ZT value as well as availability. This is followed by a brief description of the objective, consortium, job split, contents and scope together with a summary of selected results obtained with the consortium project TEG2020 funded by the BMBF (German Federal Ministry of Education and Research). The very general theoretical observations in the first section are then compared in the second section with selected results obtained in test bench and vehicle measurements using the laboratory generator developed in the project. The focus here is not on the generator itself but on the impact of the conventional generator, the additional mass of the TEG and its exhaust gas backpressure, auxiliary power consumption and the necessary recooling. The project results show that it is possible to realize the fictive TEG featured in the estimate of potential using the existing possibilities.show moreshow less

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Metadaten
Author: Daniel Jänsch, Jens Lauterbach, Markus Pohle, Peter Steinberg
DOI:https://doi.org/10.1007/978-3-319-47196-9
ISBN:978-3-319-47195-2
ISBN:978-3-319-47196-9
Title of the source (English):Energy and Thermal Management, Air Conditioning, Waste Heat Recovery, 1st ETA Conference, Berlin, 2016
Publisher:Springer
Editor: Christine Junior, Daniel Jänsch, Oliver Dingel
Document Type:Conference Proceeding
Language:English
Year of publication:2016
Tag:Thermal Management
First Page:116
Last Page:143
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Fahrzeugtechnik und -antriebe
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