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 Performance and Emissions of Motorcycle Engine Fueled with LPG-Ethanol by Port Injection
Tác giả hoặc Nhóm tác giả: Bui Van Ga, Cao Xuan Tuan, Bui Van Hung, Nguyen Thi Thanh Xuan, and Bui Van Tan
Nơi đăng: The International Conference Series on Geotechnics, Civil Engineering and Structures (CIGOS) Proceedings of the 6th International Conference on Geotechnics, Civil Engineering and Structures; Số: 978-981-16-7160-9;Từ->đến trang: 1673-1682;Năm: 2021
Lĩnh vực: Khoa học công nghệ; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
ABSTRACT
The present paper investigates the performance and emission of a retrofitted Honda 1 lOcc motorcycle engine fueled with LPG-ethanol by simulation and experiment. The ethanol and the LPG are injected separately through the two different injectors. A microcontroller is set up connecting with the ECM of the engine for flexible adjustment of the LPG/ethanol ratio based on the gasoline injector control signal. The measurements were conducted on a special engine testing instrument with an automatic load controller. The simulation was performed with the help of the Ansys Fluent Software. The results show that the LPG-ethanol dual injection forms a stratified mixture distribution at the end of the compression process. The relatively LPG-rich area is found around the spark plug while the ethanol-rich area is located near the cylinder wall. With 30% ethanol addition to LPG, the indicative engine cycle work increases by 4.5% while the emissions of NOX, c o , and HC decrease respectively by 13,20, and 17% as compared to LPG fueling mode. When the ethanol content is higher than 30%, a special intake manifold design is needed for supporting the evaporation of the liquid fuel.
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