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Open AccessArticle

Turbocompound Power Unit Modelling for a Supercapacitor-Based Series Hybrid Vehicle Application

1
Department of Mechanical, Energy, Management and Transportation Engineering (DIME), University of Genova, via all’Opera Pia 15, 16145 Genova, Italy
2
Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genoa, via all’Opera Pia 11a, 16145 Genova, Italy
*
Author to whom correspondence should be addressed.
Energies 2020, 13(2), 447; https://doi.org/10.3390/en13020447
Received: 11 December 2019 / Revised: 10 January 2020 / Accepted: 13 January 2020 / Published: 16 January 2020
In this paper, starting from the measurements available for a 2000 cm3 turbocharged diesel engine, an analytical model of the turbocharger is proposed and validated. The model is then used to extrapolate the efficiency of a power unit with a diesel engine combined with a turbocompound system. The obtained efficiency map is used to evaluate the fuel economy of a supercapacitor-based series hybrid vehicle equipped with the turbocompound power unit. The turbocompound model, in accordance with the studies available in the technical literature, shows that the advantages (in terms of efficiency increase) are significant at high loads. For this reason, turbocompound introduction allows a significant efficiency improvement in a series hybrid vehicle, where the engine always works at high-load. The fuel economy of the proposed vehicle is compared with other hybrid and conventional vehicle configurations. View Full-Text
Keywords: turbocompound; turbocharger; supercapacitor; hybrid electric vehicle (HEV); series architecture; fuel economy; efficiency turbocompound; turbocharger; supercapacitor; hybrid electric vehicle (HEV); series architecture; fuel economy; efficiency
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MDPI and ACS Style

Repetto, M.; Passalacqua, M.; Vaccaro, L.; Marchesoni, M.; Pini Prato, A. Turbocompound Power Unit Modelling for a Supercapacitor-Based Series Hybrid Vehicle Application. Energies 2020, 13, 447.

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