한국연소학회지 (Journal of the Korean Society of Combustion)

  • 제15권1호
  • /
  • Pages.1-11
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  • 2010
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  • 1226-0959(pISSN)
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  • 2466-2089(eISSN)
한국연소학회 (The Korean Society of Combustion)
권호 표지

HSDI 디젤엔진의 연료분사계와 연소현상을 연계한 수치해석

Coupled Simulation of Common Rail Fuel Injection and Combustion Characteristics in a HSDI Diesel Engine

  • 이석영 (인하공업전문대학 기계과) ;
  • 허강열 (포항공과대학교 기계공학과)
  • 투고 : 2009.12.01
  • 심사 : 2010.02.17
  • 발행 : 2010.03.31
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초록

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.

키워드

참고문헌

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