Spark-timing calibration of a gasoline-ammonia motorcycle engine using CFD and experiments
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Từ khóa:
Ammonia-gasoline dual fuel
Motorcycle spark-ignition engine
Spark advance
Maximum brake torque
CFD simulation
Tóm tắt
This study investigates ignition-map requirements for a Honda Lead 110cc motorcycle engine fuelled with gasoline, a 30% gasoline 70% NH3, and pure NH3 at 7500 rpm, wide-open throttle, and ϕ=1. Three-dimensional CFD simulations using the Partially Premixed/Zimont-Lipatnikov model were combined with original ignition-map measurements using SmartFi 2 and an oscilloscope. The simulated gasoline MBT timing, 33oCA BTDC, agreed with the measured value of 33.1o CA BTDC. Increasing ammonia content shifted MBT to 42oCA BTDC for the blend and 55oCA BTDC for pure ammonia. At MBT, power decreased from 6.40 kW for gasoline to 5.56 and 4.63 kW, respectively. Predicted NOx decreased from 5500 ppm to 1900 and 1700 ppm. Simulation-experiment NOx deviations averaged 11.8%. The results provide a practical basis for remapping ignition in gasoline-ammonia motorcycle engines.
Tài liệu tham khảo
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Sep 30, 2026
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Doan, D. V., V. G. Bui, T. M. T. Bui, H. H. N. Tieu, và V. H. Bui. “Spark-Timing Calibration of a Gasoline-Ammonia Motorcycle Engine Using CFD and Experiments”. Tạp Chí Khoa học Và Công nghệ Đại học Đà Nẵng, vol 24, số p.h 9, Tháng Chín 2026, tr 73-81, doi:10.31130/ud-jst.2026.24(9).621E.
