Investigation of an electrically assisted turbocharger with energy recovery for a heavy duty diesel engine

Ahmed Rezk, J. Carter, Martyn Jupp, Keith Nickson, John Allport

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An electrically assisted turbocharger is an advanced boosting technology that enhances the overall performance and reduces emissions of downsized engines. This paper investigates the effect of electric turbo assist [ETA] technology on a heavy duty, on-road diesel engine during steady state operation using a GT-Power 1-D engine simulation model. Two key findings have been observed: [1] Increasing assisting power at fixed torque, AFR and EGR rate values, leads to a reduction in pumping work, enhanced engine efficiency and reduced compressor mass flow, pressure ratio and turbocharger shaft speed. [2] Contrary to expectations, a fuel economy benefit was observed whilst assisting the turbocharger during high engine speed/full load operation and recovering energy at relatively low engine speeds and loads.
Original languageEnglish
Title of host publicationThe 12th International Conference on Turbochargers and Turbocharging
Place of PublicationLondon
PublisherInstitution of Mechanical Engineers
Number of pages11
ISBN (Print)9780957237476
Publication statusPublished - 17 May 2016
Event12th International Conference on Turbochargers and Turbocharging - The Kia Oval, Londond, United Kingdom
Duration: 17 May 201618 May 2016
Conference number: 12
https://events.imeche.org/ViewEvent?code=C6231 (Link to Conference Details)

Conference

Conference12th International Conference on Turbochargers and Turbocharging
CountryUnited Kingdom
CityLondond
Period17/05/1618/05/16
Internet address

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  • Cite this

    Rezk, A., Carter, J., Jupp, M., Nickson, K., & Allport, J. (2016). Investigation of an electrically assisted turbocharger with energy recovery for a heavy duty diesel engine. In The 12th International Conference on Turbochargers and Turbocharging Institution of Mechanical Engineers. http://eprints.hud.ac.uk/id/eprint/28456/