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Realization of a novel free-piston engine generator for hybrid electric-vehicle applications

Smallbone, Andrew; Hanipah, Mohd Razali; Jia, Boru; Scott, Tim; Heslop, Jonathan; Towell, Ben; Lawrence, Chris; Roy, Sumit; Vijayalakshmi, Shivaprasad K.; Roskilly, Antony Paul

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Authors

Mohd Razali Hanipah

Boru Jia

Tim Scott

Ben Towell

Chris Lawrence

Shivaprasad K. Vijayalakshmi

Antony Paul Roskilly



Abstract

Free-piston engine generators (FPEGs) have huge potential to be the principle energy conversion device for generating electricity from fuel as part of a hybrid electric vehicle (EV) powertrain system. The principal advantages lays in the fact that they are theoretically more efficient, more compact and more lightweight compared to other competing EV hybrid and range extender solutions (internal combustion engines, rotary engines, fuel cells etc.). However, this potential has yet to be realised. This article details a novel dual-piston FPEG configuration and presents the full layout of a system and provides technical evidence of a commercial FPEG system's likely size and weight. The work also presents the first results obtained from a project which set-out to realise a operational FPEG system in hardware through the development and testing of a flexible prototype test platform. The work presents the performance and control system characteristics, for a first of a kind system, these show great technical potential with stable and repeatable combustion events achieved with around 700W per cylinder and 26% indicated efficiency.

Citation

Smallbone, A., Hanipah, M. R., Jia, B., Scott, T., Heslop, J., Towell, B., …Roskilly, A. P. (2020). Realization of a novel free-piston engine generator for hybrid electric-vehicle applications. Energy and Fuels, 34(10), 12926-12939. https://doi.org/10.1021/acs.energyfuels.0c01647

Journal Article Type Article
Acceptance Date Sep 3, 2023
Online Publication Date Sep 7, 2020
Publication Date Oct 15, 2020
Deposit Date Sep 11, 2020
Publicly Available Date Sep 22, 2020
Journal Energy and Fuels
Print ISSN 0887-0624
Electronic ISSN 1520-5029
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 34
Issue 10
Pages 12926-12939
DOI https://doi.org/10.1021/acs.energyfuels.0c01647
Public URL https://durham-repository.worktribe.com/output/1292476

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Advance online version This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.






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