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김용태(YOUNG T. KIM),정찬운(CHAN M. CHUNG),정대용(D.Y. JEONG),이종태(JONG T. LEE) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.5_1
A medium duty hydrogen-natural gas fueled engine using hydrogen enriched CNG fuel can obtain stable operation at ultra lean condition and reduce emissions extremely. Reduction of CO₂in its engine is the one of most benefit. In this study, compression ratio were investigated including performance of this engine. As results, it was found that phenomenon of pressure oscillation it means occurring knock was increased due to large specific volume of hydrogen when R_(dH2) was increased. Even if same compression ratio, pressure oscillation was remarkable according to increasing R_(dH2).