Optimization of a Brayton external combustion gas-turbine system for extended range electric vehicles

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dc.contributor.author Bou Nader, Wissam S.
dc.contributor.author Mansour, Charbel J.
dc.contributor.author Nemer, Maroun G.
dc.date.accessioned 2020-09-25T11:02:24Z
dc.date.available 2020-09-25T11:02:24Z
dc.date.copyright 2018 en_US
dc.date.issued 2020-09-25
dc.identifier.issn 0360-5442 en_US
dc.identifier.uri http://hdl.handle.net/10725/12163
dc.description.abstract Significant research efforts are considered in the automotive industry on the use of low-carbon fuels in order to reduce the emissions and improve the fuel economy of vehicles. Some of these fuels, such as the solid fuels for example, are only compatible with external combustion machines. These machines are only suitable for electrified powertrains relying on electric propulsion, in particular the extended-range-electric-vehicles with series hybrid powertrain configuration where fuel consumption strongly relies on the energy converter efficiency and power density. This paper investigates the fuel savings potential of these vehicles using a Brayton external combustion gas-turbine system as energy converter substitute to the conventional internal combustion engine. An exergo-technological explicit analysis is conducted to identify the best system configuration. A downstream-intercooled reheat external combustion gas-turbine (DIRe-ECGT) system is prioritized, offering the highest efficiency among the investigated systems. An extended-range-electric-vehicle model is developed and energy consumption simulations are performed on the worldwide-harmonized light vehicles test cycle. Fuel consumption simulation results are compared to a reference extended-range-electric-vehicle using an engine auxiliary-power-unit. Results show 6%–11.5% of fuel savings with the prioritized DIRe-ECGT auxiliary-power-unit as compared to the reference model, depending on the battery capacity and the trip distance. en_US
dc.language.iso en en_US
dc.title Optimization of a Brayton external combustion gas-turbine system for extended range electric vehicles en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 201001655 en_US
dc.author.department Industrial And Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Energy en_US
dc.journal.volume 150 en_US
dc.article.pages 745-758 en_US
dc.keywords External combustion gas-turbine en_US
dc.keywords Brayton cycle en_US
dc.keywords Exergy analysis en_US
dc.keywords Extended-range-electric-vehicle en_US
dc.keywords Series hybrid en_US
dc.keywords Dynamic programming en_US
dc.identifier.doi https://doi.org/10.1016/j.energy.2018.03.008 en_US
dc.identifier.ctation Bou Nader, W. S., Mansour, C. J., & Nemer, M. G. (2018). Optimization of a Brayton external combustion gas-turbine system for extended range electric vehicles. Energy, 150, 745-758. en_US
dc.author.email charbel.mansour@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0360544218304067 en_US
dc.author.affiliation Lebanese American University en_US

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