A Study on the Characteristics of NOx and another Emisson by Water Injection System for a Light-Duty Diesel Engine

물 분사 시스템에 의한 소형 디젤엔진의 NOx 및 그 외 배출물의 특성에 관한 연구

  • 최재성 (한국해양대학교 기관시스템공학부) ;
  • 남정길 (목포해양대학교 기관시스템공학부)
  • Published : 2005.09.01

Abstract

In this paper. the effects of a WI(Water Injection) in the intake pipe for a 4-cylinder Dl(Direct Injection) diesel engine are investigated experimentally, The WI system was controlled by the duty cycle from the intake manifold's temperature and MAF(Manifold Air Flow) First. effect of EGR on NOx reduction was investigated. Then WI system was applied to reduce NOx As the results. we can make the NOx map and visualize the NOx results by variation of engine speed and engine load It was known that effect of WI system on NOx reduction without the EGR was better than the with EGR base engine except of low load and speed condition.

Keywords

References

  1. Masahiro Ishida, Hironobu Ueki, and Daisaku Sakaguchi, 'Prediction of NOx Reduction Rate Due to Port Water Injection in a DI Diesel Engine', SAE 972961, 1997
  2. S. Brusca, R. Lanzafame, 'Evaluation of the Effects of Water Injection in a Single Cylinder CFR Cetane Engine', SAE 2001-01-2012, 2001
  3. S. Brusca, R. Lanzafame, Injection in IC-SI Engines to Control Detonation and to Reduce Pollutant Emissions', SAE 2003-01-1912, 2003
  4. J. P. Mellow, A. M. Mellor, 'Emissions from Direct Injection Diesel Engines with Water/Steam Dilution', SAE 1999-01-0836, 1999
  5. 남정길, 최주열, '디젤엔진의 NOx 배출 특성에 관한 연구', 한국박용기관학회지, 제27권 제3호, pp. 373-380, 2003
  6. 남정길, '체력효율을 고려한 가변밸브 개폐시기의 조정에 의한 실린더내 잔류 가스량에 관한 연구', 한국자동차공학회논문집, 제9권 제5호, pp. 82-88. 2001
  7. 배병렬, 남정길, 최재성, '디젤기관의 연소실내 NO 생성농도 예측에 관한 연구', 한국박용기관학회지. pp. 543-551, 제23권 제4호, 1999
  8. M. Chan, S. Das, and R. D. Reitz, 'Modeling multiple injection and EGR effects on diesel engine emissions', SAE972864, 1997
  9. J. G. Hawley, et al., 'Reduction of Steady State NOx Levels from an Automotive Diesel Engine Using Optimized VGT/EGR Schedules', SAE 1999-01-0835. 1999
  10. R. S. G. Baert, D, E. Beckman, A. Veen, 'Efficient EGR Technology for Future HD Diesel Engine Emission Targets', SAE 1999-01-0837, 1999
  11. A. J. Dennis, C. P. Garner, D. H. C. Taylor, 'The Effect of EGR on Diesel Engine Wear', SAE 1999-01-0839, 1999