Power and Fuel Economy of a Radial Automotive Thermoelectric Generator: Experimental and Numerical Studies
dc.contributor.author
dc.date.accessioned
2018-11-27T16:19:48Z
dc.date.available
2018-11-27T16:19:48Z
dc.date.issued
2018-10-11
dc.identifier.uri
dc.description.abstract
Recent developments of high performance thermoelectric (TE) materials have increased the interest of using this technology to directly convert waste heat into electricity. In the automotive sector, many automotive thermoelectric generators (ATEGs) designs use TE modules (TEMs) with high hot side temperatures to cope with high engine load regimes. Here, we develop a new concept of a radial ATEG that is specifically designed to work with low temperature TEMs, which enables the use of Pb-free modules and reduces the thermal stress of the device. A prototype is built and tested at different regimes in an engine test bench. A numerical model of the ATEG is developed and validated. The consequences of modifying (1) the exchange area between the heat absorber and the exhaust gases and (2) the effective figure of merit of TEMs on the electrical output power and fuel economy are investigated by means of simulations. Results indicate that the maximum fuel economy (1.3%) is not attained at the point of maximum output power (228 W). In terms of fuel economy, the back pressure at the exhaust penalizes high mass flow regimes. We use a dimensionless parameter to analyze the potential of the ATEG for reducing fuel consumption
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.3390/en11102720
dc.relation.ispartof
Energies, 2018, vol. 11, núm. 10, p. 2720
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Articles publicats (D-EMCI)
dc.rights
Attribution 4.0 International
dc.rights.uri
dc.subject
dc.title
Power and Fuel Economy of a Radial Automotive Thermoelectric Generator: Experimental and Numerical Studies
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
028974
dc.type.peerreviewed
peer-reviewed
dc.identifier.eissn
1996-1073