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Methodology for fuel saving assessment of a mild hybrid electric vehicle using organic Rankine cycle

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dc.contributor.author Mansour, Charbel
dc.contributor.author Bou Nader, Wissam
dc.contributor.author Dumand, Clément
dc.contributor.author Nemer, Maroun
dc.contributor.editor Teixeira, José Carlos
dc.date.accessioned 2020-10-13T12:24:06Z
dc.date.available 2020-10-13T12:24:06Z
dc.identifier.isbn 9789729959646 en_US
dc.identifier.uri http://hdl.handle.net/10725/12257
dc.description.abstract Considerable efforts have been invested in the automotive industry on electrified powertrains in order to reduce passenger cars’ dependence on fossil fuels. Powertrains electrification resulted in a wide range of mass-production hybrid vehicle models, ranging from micro-hybrid, to mild, full and battery-extended hybrids such as plug-in and range-extender electric vehicles. Fuel savings of these powertrains strongly rely on the energy management strategy (EMS) deployed on-board, as well as on the technology used to recover the waste heat energy. This paper investigates the fuel savings potential of a mild hybrid vehicle using an Organic Rankine Cycle (ORC) for generating electricity from the engine-coolant circuit. The net mechanical power and electrical power generated from the ORC are determined based on experimental data recorded on a 1.2-liters turbocharged engine. The coolant temperature at the inlet and outlet of the radiator as well as the coolant mass flow rate at the exit of the engine cylinder head are measured. The R-1234yf organic fluid is used and the Rankine operating pressure has been regulated to maximize the overall system efficiency under technological constraints. The dynamic programming control is used as a global optimal energy management strategy in order to define the best strategy for the engine operation and power-split between the electric and thermal paths of the powertrain. A sensitivity analysis is also performed to find the optimal size of the electric motor while taking into account the additional weight of the ORC system. Results show 2.4% of fuel economy improvement on the WLTC. en_US
dc.language.iso en en_US
dc.publisher University of Minho en_US
dc.subject Energy consumption -- Congresses en_US
dc.title Methodology for fuel saving assessment of a mild hybrid electric vehicle using organic Rankine cycle en_US
dc.type Conference Paper / Proceeding 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.publication.place Guimarães en_US
dc.keywords Mild hybrid en_US
dc.keywords Organic Rankine cycle en_US
dc.keywords Waste heat recovery en_US
dc.keywords Engine-coolant en_US
dc.keywords Dynamic programming en_US
dc.description.bibliographiccitations Includes bibliographical references en_US
dc.identifier.ctation Mansour, C., Bou Nader, W., Dumand, C., & Nemer, M. (2018). Methodology for fuel saving assessment of a mild hybrid electric vehicle using organic Rankine cycle. In 31st International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2018) en_US
dc.author.email charbel.mansour@lau.edu.lb en_US
dc.conference.date 17-22, June 2018 en_US
dc.conference.pages Guimarães, Portugal en_US
dc.conference.subtitle ECOS 2018 en_US
dc.conference.title Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://soe.lau.edu.lb/research/ime/methodology_for_fuel_saving_asse.php en_US
dc.publication.date 2018 en_US
dc.author.affiliation Lebanese American University en_US


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