배기가스 재순환을 적용한 하이브리드 연소시스템에 대한 기초연구

초록

The hybrid combustion system applying exhaust gas recirculation was investigated to achieve the low pollutant emission. In this study, it was studied the effects of EGR on NOx emissions with two type EGR methods(FI-EGR and FPI-EGR) and various EGR ratios. As results, when EGR was applied, NOx emission index decreased. In addition, hybrid combustion system showed a better result than non-premixed combustion system in terms of pollutant reduction at the same EGR ratios. Especially, in the case of 25% of FI-EGR ratio at hybrid combustion system that the falme ratio of non-premixed and premixed is 50:50, NOx emission index reduction rates were about 59%, and in the case of 15% of FPI-EGR ratio at hybrid combustion system that the flame ratio of non-premixed and premixed is 70:30 , NOx emission index reduction rates were about 48%.