Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of 0D Multizone Combustion Model and Its Coupling with 1D Cycle-Simulation Model for Medium-Sized Direct-Injection Diesel Engine

중형 직분식 디젤 엔진의 0-D Multi-zone 연소 모델 및 1-D Cycle Simulation 연계 기법 개발

  • Choi, Seung-Mok (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.) ;
  • Min, Kyoung-Doug (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.) ;
  • Kim, Ki-Doo (Engine Research Dep't, R&D Division, Hyundai Heavy Industries Co., LTD.)
  • 최승목 (서울대학교 기계항공공학부) ;
  • 민경덕 (서울대학교 기계항공공학부) ;
  • 김기두 (현대중공업 엔진연구실)
  • Received : 2009.12.28
  • Accepted : 2010.05.10
  • Published : 2010.06.01
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Abstract

In this study, a 0D multizone spray-combustion model is developed for the estimation of the performance and NOx emission of medium-sized direct-injection marine diesel engine. The developed combustion model is coupled with the commercial 1D cycle-simulation model, Boost, to analyze the entire engine system, including the intake and exhaust. The combustion model code was generated using Fortran90, and the model was coupled with Boost by connecting the generated code to a user-defined high-pressure cycle (UDHPC) interface. Simulation was performed for two injectors (8 holes and 10 holes) and two engine loads (50% and 100%), and the results of simulation were in good agreement with engine performance test.

본 연구에서는 중형 직분식 선박용 엔진의 성능 및 NOx 배출물 예측을 위한 0-D multi-zone 분무 연소 모델이 개발되었다. 모델은 상용 1-D 사이클 해석 프로그램 (Boost)와 연동할 수 있도록 개발되었으며, 흡배기 시스템을 포함한 엔진 전체에 대한 동시 해석이 가능하였다. 연소 모델은 Fortran90 으로 개발되었으며, AVL 에서 제공된 'user defined high pressure cycle (UDHPC) interface'를 통해 Boost 와 연동되었다. 두 가지의 인젝터(8 홀, 10 홀)에 대해 두 가지 부하에서 해석을 수행하였으며, 해석 결과는 실제 엔진의 성능 실험 결과를 잘 추종하였다.

Keywords

References

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