Multi-zone 모델에 의한 디젤엔진에서의 분사율 변화에 따른 배기가스 특성에 관한 연구

A Study on the Effect of Injection Rate on Emission Characteristics in D.I. Diesel Engine by Multi-zone Model

  • 황재원 (인하대학교 기계공학과) ;
  • 갈한주 (인하대학교 기계공학과) ;
  • 박재근 (인하대학교 기계공학과) ;
  • 김만호 (인하대학교 기계공학과) ;
  • ;
  • 채재우 (인하대학교 기계공학과)
  • 발행 : 1999.09.01

초록

A model for the prediction of combustion and exhaust emissions of DI diesel engine has been formulated and developed . This model is a quasi-dimensional phenomenological one and is based on multi-zone combustion modelling concept. It takes into consideration, on a zonal basis ,detailed of fuel spray formation, droplet evaporation, air-fuel mixing, spray wall interaction, swirl , heat transfer, self ignition and burning rate . The emission model is considered with chemical equipment , as well as the kinetics of fuel. NO and soot reactions in order to calculate the pollutant concentrations within each zone and the whole of cylinder . The accuracy of prediction versus experimental data and the capability of the model in predicting engine heat release, cylinder pressure and all the major exhaust emissions on zonal and cumulative basis., is demonstrated. Detailed prediction results showing the sensitivity of the model bv various injection rates are presented and discussed.

키워드

참고문헌

  1. SAE 950611 Reduction of diesel engine Nox using pilot injection Minami T.;Takeuchi K.;Shimazaki N.
  2. SAE 940668 Measurement of Effect of rate shaped and split injection on Diesel Engine soot and NOx Emissions Nehmer D.A.;Reitz R.D.
  3. SAE 950897 Reduction Particulate and NOx Emissions by Using Multiple Injection in a heavy duty Di Diesel Engine Tow T.C.;Proeropont D.A.;Reitz R.D.
  4. IPC-9 Effect of Fuel Injection Rate Profile on Combustion and Emissions in a DI Diesel Engine Keiichi Satoh(etc.)
  5. IMECHE Conference in Birmingham The Ideal Rate of Injection for Swirl Supported HSDI Diesel Engine Herzog, P.
  6. SAE Paper 952059 Pressure Modulated Injection and Its Effect on Combustion and Emissions of a HD Diesel Engine H. Erlach;F.Chmela;W. Cartellieri;P. Herzog
  7. SAE 900854 Injection Timing and Rate Control- A solution for low Emissions Needham, J.R.