Abstract
An engine experimental platform with gasoline port injection and hydrogen/gasoline direct injection was built to study the effects of combined injection mode and ignition timing on combustion and emission characteristics of a spark-ignition engine. The study was performed in three modes, including gasoline port injection (GPI) mode, gasoline port injection plus gasoline direct injection (GPI + GDI) mode, and gasoline port injection plus hydrogen direct injection (GPI + HDI) mode, under the conditions of a constant excess air ratio and speed. Through the comparison and analysis of the three modes, the results reveal that combined injection is beneficial to increasing brake power and decreasing brake-specific fuel consumption and hydrocarbon (HC) and carbon monoxide (CO) emissions. The combustion process will be accelerated and concentrated with combined injection as well as hydrogen addition, and the effect of adding hydrogen is stronger than that of gasoline direct injection. Brake thermal efficiency and ...
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.
