Authors : Kwonse Kim and Dooseuk Choi
Abstract: This study performed an experimental analysis on plasma ignition performance to overcome the problem of unstable combustion and miss fire by applying arc plasma discharges which replicates the static combustion system of a gasoline engine. The experimental device was a static combustion chamber having a capacity of 450 cc which is 50 cc larger than that of a gasoline direct injection engine (1,600 cc/4 cylinder), so as to allow the visualization of combustion flames. Consequently, the arc plasma discharges averagely had a faster combustion response than point sparks by 1ms and they also achieved an improved combustion pressure by 3 bar than that of point sparks. Therefore, this experiment could be found to generate the similar performance such as combustion pressure which is obtainable from point spark, even under lean combustion conditions.
Kwonse Kim and Dooseuk Choi, 2018. Flame Analysis of Combustion Pressure Characteristics on the Conventional Point Sparks and Arc Plasma Discharges for GDI. Journal of Engineering and Applied Sciences, 13: 3797-3802.