Abstract
Free-piston engine generator (FPEG), as an important branch of range extender, is a very competitive development direction. In this paper, a hydrogen-fueled opposed-piston FPEG is proposed, which adopts a mechanical-pressurized structure and a two-layer control strategy based on the inner and outer dead center. The prototype well meets the requirements of stable power generation and vehicle loading. The experimental tests have been conducted, which show that the pure hydrogen is successfully ignited under the cold start condition, the combustion efficiency and generation efficiency reach 30 % and 20 % respectively, and the peak pressure is close to 40 bar. However, the prototype was unable to enter the stable operation stage due to frequent misfire phenomena. Based on the above, the causes of abnormal combustion were discussed and the energy loss of the prototype was calculated. The prototype was simulated to run in the stable operation stage finally, and the future optimization scheme based on control strategy and structure was concluded.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
