Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Numerical Study on Effect of Variation of Injection Angle on the Emissions

디젤 엔진의 분사각 변화가 배기가스에 미치는 영향에 관한 수치해석적 연구

  • 배명직 (부산대학교 기계공학과 대학원) ;
  • 이병화 (부산대학교 기계공학과 대학원) ;
  • 한동식 (부산대학교 기계공학과 대학원) ;
  • 전충환 (부산대학교 기계공학부) ;
  • 장영준 (부산대학교 기계공학부) ;
  • 송주헌 (부산대학교 기계공학부)
  • Published : 2008.11.05
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Abstract

In order to reduce NOx and Soot emissions simultaneously, characteristics of diesel spray and combustion were investigated by numerical simulation with StarCD in this paper. This work focuses on effect of Spin Injection. A simulation model of combustion, spray and emissions is developed for heavy duty marine diesel engine application. Simulation is performed with change of spray angle between first and second directions at fixed engine speed, injection timing, injection duration and etc. The results show that Spin Spray Injection method can reduce NOx emission. And the results show that the 1st injection considerably interfere with 2nd injection characteristics.

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