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Energies 2016, 9(12), 1067; doi:10.3390/en9121067

Decoupling Design and Verification of a Free-Piston Linear Generator

1
Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Zhejiang Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo 315201, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Academic Editor: K.T. Chau
Received: 7 September 2016 / Revised: 30 October 2016 / Accepted: 8 December 2016 / Published: 16 December 2016
(This article belongs to the Collection Electric and Hybrid Vehicles Collection)
View Full-Text   |   Download PDF [7955 KB, uploaded 16 December 2016]   |  

Abstract

This paper proposes a decoupling design approach for a free-piston linear generator (FPLG) constituted of three key components, including a combustion chamber, a linear generator and a gas spring serving as rebounding device. The approach is based on the distribution of the system power and efficiency, which provides a theoretical design method from the viewpoint of the overall power and efficiency demands. The energy flow and conversion processes of the FPLG are analyzed, and the power and efficiency demands of the thermal-mechanical and mechanical-electrical energy conversion are confirmed. The energy and efficiency distributions of the expansion and compression strokes within a single stable operation cycle are analyzed and determined. Detailed design methodologies of crucial geometric dimensions and operational parameters of each key component are described. The feasibility of the proposed decoupling design approach is validated through several design examples with different output power. View Full-Text
Keywords: free-piston; linear generator; decoupling design; power and efficiency distribution free-piston; linear generator; decoupling design; power and efficiency distribution
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Sun, P.; Zhang, C.; Chen, J.; Zhao, F.; Liao, Y.; Yang, G.; Chen, C. Decoupling Design and Verification of a Free-Piston Linear Generator. Energies 2016, 9, 1067.

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