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Performance simulation of a spark ignited free-piston engine generator

Lookup NU author(s): Dr Rikard Mikalsen, Professor Tony Roskilly

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Abstract

Free-piston engines are under investigation by a number of research groups worldwide due to potential fuel efficiency and engine emissions advantages. The free-piston engine generator, in which a linear electric generator is fixed to the mover to produce electric power, has been proposed as an alternative prime mover for hybrid-electric vehicles. This paper investigates the performance of a spark ignited free-piston engine generator and compares it to a conventional engine using a computational fluid dynamics simulation model. The particular operating characteristics of the free-piston engine were not found to give noticeable performance advantages, and it is concluded that the main potential of this technology lies in the simplicity and flexibility of the concept. © 2007 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Mikalsen R, Roskilly AP

Publication type: Article

Publication status: Published

Journal: Applied Thermal Engineering

Year: 2008

Volume: 28

Issue: 14-15

Pages: 1726-1733

Print publication date: 01/10/2008

ISSN (print): 1359-4311

ISSN (electronic): 1873-5606

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.applthermaleng.2007.11.015

DOI: 10.1016/j.applthermaleng.2007.11.015

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