Review of recent advances of free-piston internal combustion engine linear generator

C Guo, Z Zuo, H Feng, B Jia, T Roskilly - Applied Energy, 2020 - Elsevier
Free piston internal combustion engine linear generator (FPELG) is a novel energy
conversion device. Compared with traditional rotary internal combustion engines, FPELG …

Performance prediction and parameters optimization of an opposed-piston free piston engine generator using response surface methodology

F Yang, H Feng, L Wu, Z Zhang, J Wang - Energy Conversion and …, 2023 - Elsevier
The opposed-piston free-piston engine generator (FPEG) has high energy conversion
efficiency, but its thermodynamic performance is significantly affected by various system …

Demonstration of a single/dual cylinder free-piston engine generator prototype: Milestone achieved on system stability

Z Zhang, H Feng, H He, B Jia, Z Zuo, C Liu… - Energy, 2023 - Elsevier
Free-piston engine generator (FPEG) is a new type of energy conversion system directly
coupled with the free piston engines and linear motors, and it is expected to be the next …

Operating characteristics of a linear range extender with different energy consumption topologies

Y Wei, Z Zuo, B Jia, Z Zhang, B Mei, H Feng… - Applied Thermal …, 2023 - Elsevier
The free-piston linear generator is a new energy transformation technology with compact
structure, multi-fuel adaptability, low friction loss, and simple modular configuration. To …

Research on the intermediate process of a free-piston linear generator from cold start-up to stable operation: Numerical model and experimental results

H Feng, C Guo, B Jia, Z Zuo, Y Guo… - Energy conversion and …, 2016 - Elsevier
The free-piston linear generator (FPLG) has more merits than the traditional reciprocating
engines (TRE), and has been under extensive investigation. Researchers mainly …

Research on the operation characteristics of a free-piston linear generator: Numerical model and experimental results

C Guo, H Feng, B Jia, Z Zuo, Y Guo… - Energy Conversion and …, 2017 - Elsevier
Free piston linear generator (FPLG) shows unique operation characteristics due to the
elimination of crankshaft and connecting rod mechanism. This paper investigates its …

Effect of fuel injection characteristics on the performance of a free-piston diesel engine linear generator: CFD simulation and experimental results

C Guo, Y Song, H Feng, Z Zuo, B Jia, Z Zhang… - Energy Conversion and …, 2018 - Elsevier
The free-piston diesel engine linear generator (FPDLG), as a novel energy conversion
device, is investigated by many researcher groups. The injection characteristics are …

Effect of the stroke-to-bore ratio on the performance of a dual-piston free piston engine generator

Z Zhang, H Feng, B Jia, Z Zuo, A Smallbone… - Applied Thermal …, 2021 - Elsevier
The free piston engine generator (FPEG) is considered as one of the next generation
efficient energy conversion device because of its compact structure, high geometric power …

Identification and analysis on the variation sources of a dual-cylinder free piston engine generator and their influence on system operating characteristics

Z Zhang, H Feng, B Jia, Z Zuo, X Yan, A Smallbone… - Energy, 2022 - Elsevier
Stable combustion is a huge challenge for dual-cylinder free-piston engine generator
(FPEG). Combustion variations are easy to occur, because the piston movement is only …

Influence analysis of position error to the operating characteristics of opposed-piston free-piston engine generator with position observation optimization

F Yang, H Feng, B Jia, Z Zhang, L Wu - Energy, 2024 - Elsevier
Stable operation is a crucial challenge for opposed-piston free-piston engine generator
(FPEG). Due to the absence of mechanical constraints, variations position-based operation …