Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Diesel SCR Development to Meet US Tier2 Bin5 Emission Regulation

북미 Tier2 Bin5 규제 대응을 위한 디젤 SCR 개발

  • Lee, Kang-Won (Passenger Car Diesel Engine Test Team, Hyundai Kia Corporate R&D Division) ;
  • Kang, Jung-Whun (Passenger Car Diesel Engine Test Team, Hyundai Kia Corporate R&D Division) ;
  • Jo, Chung-Hoon (Passenger Car Diesel Engine Test Team, Hyundai Kia Corporate R&D Division)
  • 이강원 (현대자동차 승용디젤엔진시험팀) ;
  • 강중훈 (현대자동차 승용디젤엔진시험팀) ;
  • 조청훈 (현대자동차 승용디젤엔진시험팀)
  • Received : 2010.05.10
  • Accepted : 2010.09.13
  • Published : 2011.03.01
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Abstract

The introduction of a diesel engine into the passenger car and light duty applications in the United States involves significant technical challenges for the automotive makers. This paper describes the SCR System optimization procedure for such a diesel engine application to meet Tier2 Bin5 emission regulation. A urea SCR system, a representative $NO_x$ reduction after-treatment technique, is applied to a 3.0 liter diesel engine. To achieve the maximum $NO_x$ reduction performance, the exhaust system layout was optimized using series of the computational fluid dynamics and the urea distribution uniformity test. Furthermore a comprehensive simulation model for the key factors influencing $NO_x$ reduction performance was developed and embedded in the Simulink/Matlab environment. This model was then applied to the urea SCR system and played a key role to shorten the time needed for SCR control parameter calibration. The potential of a urea SCR system for reducing diesel $NO_x$ emission is shown for FTP75 and US06 emission standard test cycle.

Keywords

References

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