http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
HSDI 디젤엔진의 연료분사계와 연소현상을 연계한 수치해석
이석영(Suk-Young Lee),허강열(Kang-Yul Huh) 한국연소학회 2010 한국연소학회지 Vol.15 No.1
In this study, the coupled simulation of fuel injection model and three-dimensional KIVA-3V code was tried to develop an algorism for predicting the effects of varying fuel injection parameter on the characteristics of fuel injection and emissions. The numerical simulations were performed using STAR-CD code in order to calculate the intake air flow, and the combustion characteristics is examined by KIVA-3V code linked with the conditional moment closure(CMC) model to predict mean turbulent reaction rate. Parametric investigation with respect to twelve relevant injection parameters shows that appropriate modification of control chamber orifice diameter, needle valve spring constant and nozzle chamber orifice diameter can significantly reduce NOx and soot emissions. Consequently, it is needed to optimize the fuel injection system to reduce the specific emissions such as NOx and soot.
이석영(Suk Young Lee),김규보(Gyu Bo Kim),박호준(Ho Jun Park),전충환(Chung Hwan Jeon),장영준(Young June Chang) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This study deals with the result of exhaust emission and performance calculated by simulation of the fuel injection characteristics of the inline injection system in a diesel engine. The emission are calculated through non-equilibrium by using the extended Zel'dovich kinetic mechanism for NOx and equilibrium method for OH, CO, H₂, H and soot concentrations. And comparison of the model predictions with the other experimental value show reasonably agreement. Detailed prediction results showing the sensitivity of the model by injection rates are presented and discussed.<br/>