| Summary: | 碩士 === 崑山科技大學 === 機械工程研究所 === 100 === In this study, the proton exchange membrane hydrogen generator was used to carbon reduction and combustion added for gasoline engine and reducing engine pollutant emissions. In order to enhance vehicle performance and reduce exhaust pollutants, the hydrogen was added to engine as an auxiliary fuel.
The experimental projects were planning at two steps. The first step was modified gasoline engine intake system and convergence with the hydrogen manufacturing machine, induction hydrogen to clean the combustion chamber carbon deposits. The second step was induct different proportions of hydrogen/gasoline mixture, the combustion characteristics were recorded and engine was operated at different engine load conditions.
Experimental results show that the deposit was burned after higher temperature combustion, the surface carbon deposit were removed. The emissions were also lower than the original gasoline. For engine performance tests, the combustion pressure and brake horse-power were increase for increasing the amount of hydrogen induction. For emissions tests, the emission was increased at low speed and low load for incomplete mixing. As engine speed increased,hydrogen feed rate was increased, CO, HC, NOx, were then reduced. At high load and high speed conditions, the CO, HC, NOx were increased and CO2 was decreased.
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