Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluate the Effect of the Intake Manifold Geometry on Cylinder-to-cylinder Variation Using 1D-3D Coupling Analysis

1D-3D 연동해석을 통한 흡기 매니폴드 형상이 실린더별 유동 분배에 미치는 영향 평가

  • Park, Sangjun (Department of Mechanical Engineering, The Graduate School, Yonsei University) ;
  • Cho, Jungkeun (Department of Mechanical Engineering, The Graduate School, Yonsei University) ;
  • Song, Soonho (Department of Mechanical Engineering, Yonsei University) ;
  • Cho, Jayun (Institute of Technology, Doosan Infracore) ;
  • Wang, Taejoong (Institute of Technology, Doosan Infracore)
  • 박상준 (연세대학교 대학원 기계공학과) ;
  • 조정근 (연세대학교 대학원 기계공학과) ;
  • 송순호 (연세대학교 기계공학과) ;
  • 조자윤 (두산인프라코어 기술원) ;
  • 왕태중 (두산인프라코어 기술원)
  • Received : 2015.07.15
  • Accepted : 2015.12.17
  • Published : 2016.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

CNG engine has been used as a transportation because of higher thermal efficiency and lower CO2 and particulate matter. However its out put power is decreased due to cylinder-to-cylinder variation during the supply of air-fuel mixture to the each cylinder. It also causes noise and vibration. So in this study, 1D engine simulation model was validated by comparison with experiment data and 3D CFD simulation was conducted to steady-state flow analysis about each manifold geometry. Then, the effects of various intake manifold geometries on variation were evaluated by using 1D-3D coupling analysis at engine speed of 2100 rpm range in 12 L CNG engine. As a result, variation was improved about 4 % though 3D CFD analysis and there was a variation within 3 % using 1D-3D coupling analysis.

Keywords

References

  1. P. C. Flynn, "Commercializing and Alternate Vehicle Fuel: Lessons Learned from Natural Gas for Vehicles," Energy Policy, Vol.30, Issue 7, pp.613-619, 2002. https://doi.org/10.1016/S0301-4215(01)00122-7
  2. G. H. Choi and O. T. Lim, "The Engine Performance and Emission Charateristics of CNG/ Diesel Dual-fuel Engine by CNG Mixing Ratio," Transactions of KSAE, Vol.19, No.3, pp.38-43, 2011.
  3. M. I. Jahirul, H. H. Masjuki, R. Saidur, M. A. Kalam, M. H. Jayed and M. A. Wazed, "Comparative Engine Performance and Emission Analysis of CNG and Gasoline in a Retrofitted Car Engine," Applied Thermal Engineering, Vol.30, Issues 14-15, pp.2219-2226, 2010. https://doi.org/10.1016/j.applthermaleng.2010.05.037
  4. J. Romm, "The Car and Fuel of the Future," Energy Policy, Vol.34, Issue 17, pp.2609-2614, 2006. https://doi.org/10.1016/j.enpol.2005.06.025
  5. S. W. Lee, G. H. Lim, C. W. Park, Y. Choi and C. G. Kim, "Effect of Low Calorific Natural Gas on Performance and Emission Characteristics of Engine," Transactions of KSME-B, Vol.37, No.12, pp.1129-1135, 2013. https://doi.org/10.3795/KSME-B.2013.37.12.1129
  6. Y. C. Ha, S. M. Lee, B. G. Kim and C. J. Lee, "Performance and Emission Characteristics of a CNG Engine Under Different Natural Gas Compositions," Transactions of KSME-B, Vol.35, No.7, pp.749-755, 2011. https://doi.org/10.3795/KSME-B.2011.35.7.749
  7. S. W. Lee, G. H. Lim, C. W. Park, Y. Choi, C. G. and Kim, "Effect of Compression Ratio Charge on Emission Characteristics of HCNG Engine," Transactions of KSME-B, Vol.37, No.5, pp.473-479, 2013. https://doi.org/10.3795/KSME-B.2013.37.5.473
  8. C. U. Kim and S. M. Oh, "A Study on the Characteristics of Dual Fuel Engine Fueled by Natural Gas and Diesel," Journal of the Korean Institute for Gas, Vol.17, No.6, pp.20-26, 2013. https://doi.org/10.7842/KIGAS.2013.17.6.20
  9. J. H. Sim, Y. H. Kwak, C. S. Ko, O. J. Lee, S. M. Lee and C. E. Lee, "A Study on Improvement of Diesel Substitution Ratio through Changing System of Mechanical Diesel Engine to Diesel-LNG Dual Fuel Engine," KSAE Annual Conference Preceedings, pp.199-205, 2012.
  10. O. T. Lim, "Study on Performance and Emission Characteristics of CNG/Diesel Dual-fuel Engine," Transactions of KSME-B, Vol.35, No.9, pp.869-874, 2011. https://doi.org/10.3795/KSME-B.2011.35.9.869
  11. G. H. Choi, S. M. Lee, S. H. Kim and O. T. Lim, "The Research of Engine Performance and Emission Characteristics of CNG/Diesel Dual-fuel Engine by CNG Mixing Ratio," KSAE Spring Conference Proceedings, pp.100-105, 2010.
  12. Z. S. Wang, H. B. Zuo, Z. C. Liu, W. F. Li and H. Dou, "Impact of N2 Dilution on Combustion and Emissions in a Spark Ignition CNG Engine," Energy Conversion and Management, Vol.85, pp.354-360, 2014. https://doi.org/10.1016/j.enconman.2014.05.089
  13. F. Morey and P. Seers, "Comparison of Cycleby- cycle Variation of Measured Exhaust-gas Temperature and In-cylinder Pressure Measurements," Appled Thermal Engineering, Vol.30, Issue 5, pp. 487-491, 2010. https://doi.org/10.1016/j.applthermaleng.2009.10.011
  14. S. W. Lee, G. H. Lim, C. W. Park, Y. Choi and C. G. Kim, "A Study on the Characteristics of Mixture Distribution in a HCNG Engine," KSAE Annual Conference Proceedings, pp.116-118, 2012.
  15. J. H. Kim, C. S. Bae and G. C. Kim, "Simulation on the Effect of the Combustion Parameters on the Piston Dynamics and Engine Performance using the Wiebe Function in a Free Piston Engine," Applied Energy, Vol.107, pp.446-455, 2013. https://doi.org/10.1016/j.apenergy.2013.02.056
  16. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw Hill, Singapore, 1988.
  17. H. Jagtap, C. Vinayak and R. Koli, "Intake System Design Approach for Turbocharged MPFI SI Engine," SAE 2011-26-0088, 2011.