Abstract
In recent years, Fossil fuel depletion and global warming, air pollution as environmental problems have become big problems. We were focused on plasma assisted combustion for the purpose of high efficiency and reduce environmental impact of the internal combustion engine. The present study had been executed as an experiment on the stage before the plasma assist ignition was applied to a diesel engine. Using a rapid compression machine in the study, we examined the effect of improving the ignition and combustion characteristics of the fuel-air mixture by plasma generated by the micro wave. First of all, the condition that strong plasma is generated was examined in the condition under the high pressure. As a result, it has been understood that the intensity of the plasma was depended on the micro wave frequency. In the plasma assist ignition, it has been understood that the ignition and combustion characteristics are greatly improved compared with a conventional spark ignition. (156 words)
