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Parametric analysis of a dual-piston type free-piston gasoline engine linear generator

Lookup NU author(s): Professor Tony Roskilly



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license ( Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy. The free-piston gasoline engine linear generator (FPELG) is linear type power device, which couples a linear internal combustion engine and a linear electrical generator together. Free-piston gasoline engine is commonly modeled using simplified zero-dimensional models. In this paper, parametric analysis of a dual-piston type FPELG is presented, aiming to find the piston operation characteristics and the performances of the FPELG during the generating process. Model validation was undertaken with the test data from a running prototype, which showed good agreement. The results show that with fixed stroke, lower moving mass would lead to higher indicated power. With fixed moving mass, shorter stroke would make higher indicated power. The FPELG was observed to be operated at high load, and it was prone to operate at relative low speed. The influence of combustion parameters, i.e. the ignition timing and the combustion efficiency to the FPELG engine performance were also investigated respectively.

Publication metadata

Author(s): Chendong G, Zuo Z, Jia B, Ziwei Z, Huihua F, Roskilly AP

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 10th International Conference on Applied Energy (ICAE2018)

Year of Conference: 2018

Pages: 1431-1436

Online publication date: 15/03/2019

Acceptance date: 22/08/2018

Date deposited: 24/04/2019

Publisher: Elsevier Ltd


DOI: 10.1016/j.egypro.2019.01.346

Series Title: Energy Procedia