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A Proposal for CO2 Abatement in Urban Areas: The UDR1–Lethe© Turbo-Hybrid Vehicle

Department of Mechanical and Aerospace Engineering, University of Roma 1 “La Sapienza”, Italy
Author to whom correspondence should be addressed.
Energies 2011, 4(3), 368-388;
Received: 6 December 2010 / Revised: 1 February 2011 / Accepted: 23 February 2011 / Published: 1 March 2011
(This article belongs to the Special Issue Hybrid Vehicles)
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For years the interest of the University of Roma 1 (UDR1) research group has been focused on the development of a Hybrid Series vehicle (called Lethe©), different from standard ones, thanks to the use of a Gas Turbine (GT) set as a thermal engine. The reason for this choice resides in the opportunity to reduce weight and dimensions, in comparison to a traditional Internal Combustion Engine. It’s currently not possible to use the GT engine set directly for the vehicle traction, so the UDR1 HS configuration only shows the GT set connected with the electric generator. The result is that the traction is purely electric. The resulting engine configuration is commonly described as a Hybrid Series Plug In. Several previous studies have been carried out, and this research has allowed us to define the correct ratio (Degree of Hybridization) between the installed power of the battery pack and that of the GT electric generator which simultaneously guarantee the main life for the battery package and the capacity of the vehicle to complete a common mission without lack of energy or stopping. This article reports the final step of the research: once all data has been calculated, how to “hybridize” a commercial city car, passenger sedan or any other vehicle. View Full-Text
Keywords: hybrid series vehicles; gas turbine set; component design and choice hybrid series vehicles; gas turbine set; component design and choice

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Capata, R.; Coccia, A.; Lora, M. A Proposal for CO2 Abatement in Urban Areas: The UDR1–Lethe© Turbo-Hybrid Vehicle. Energies 2011, 4, 368-388.

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