| Summary: | 碩士 === 國立彰化師範大學 === 車輛科技研究所 === 106 === The purpose of this study is to investigate the engine performance with the change of carriage and the difference of air-fuel ratio (AFR) by using Ethanol-gasoline, Butanol-gasoline, and hydrogen fuel (HHO).
There are two stages in this study. Using programmable ECU to affect AFR under idle speed, fixed rotation (RPM), and temperature was first examined to see the improvement of engine performance and pollutant emission.
Result indicated that lean burn do show the significant improvement. The instability of alcohol-gasoline was improved by adding HHO.
Using programmable ECU to adjust pressure and injection volume; fans to maintain the temperature of the engine; O2 sensor and catalytic converter to affect the conversion, we found out that the emission reduction of CO, HC and NOx is respectively 42%, 36% and 26%.
In the second stage, we use DYNO-mite dynamometer according to “Map of Global motorcycle driving mode” as the test condition, we tested under 30KM/h and 50KM/h.
Result of the test showed that Ethanol-gasoline and Butanol-gasoline have the lowest BSFC and the perfect emission.
At the speed of 30KM/h with 10 to 30N-m and at the speed of 50KM/h with 10N-m and 50N-m, not only the emission of HC is 0, but also the number of BSFC is as good as gasoline.
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