International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

MEASUREMENT OF $CO_2$ CONCENTRATION AND A/F RATIO USING FAST NDIR ANALYZER ON TRANSIENT CONDITION OF SI ENGINE

  • Lee, S.W. (School of Mechanical Engineering, Ajou University) ;
  • Kim, W.S. (School of Mechanical Engineering, Ajou University) ;
  • Lee, J.H. (School of Mechanical Engineering, Ajou University) ;
  • Park, J.I. (School of Mechanical Engineering, Ajou University) ;
  • Yoo, J.S. (School of Mechanical Engineering, Ajou University)
  • Published : 2006.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

A fast response $CO_2$ analyzer has been developed to study transient characteristics on an SI engine. The analyzer has the delay time of 4.5 ms and time constant of 2.8 ms, which is fast enough to measure $CO_2$ concentration on a transient condition. Wide range of A/F(Air/Fuel) ratio can be estimated using the analyzer with an additional switch type oxygen sensor. The results of measurement of $CO_2$ concentration and A/F ratio on a transient condition including rapid acceleration/deceleration and EGR(Ehxaust Gas Recirculation) on/off are presented and compared with a commercial exhaust gas analyzer and UEGO(Universial Exhaust Gas Oxyzen) sensor.

Keywords

References

  1. Adachi, M., Yamagami, Y., Inoue, K. and Ishida, K. (1992). Automotive emissions analyses using FTIR spectrophotometer. SAE Paper No. 920723
  2. Green, R. (2000). Measuring the cylinder-to-cylinder EGR distribution in the intake of a diesel engine during transient operation. SAE Paper No. 2000-01- 2866
  3. Hall, M. and Zuzek, P. (2000). Fiber optic sensor for time-resolved measurements of exhaust gas recirculation in engines. SAE Paper No. 2000-01-2865
  4. Heywood, J. B. (1986). Internal Combustion Engine Fundamentals. McGraw-HilL, Int. Edn
  5. Kim, W. S., Lee, J. H., Park, Y. M., and Yoo, J. S. (2003). Development of fast-response portable NDIR analyzer using semiconductor devices. KSME Int. J. 17, 12, 2099−2106 https://doi.org/10.1007/BF02982450
  6. Kim, W. S. (2004). A Study on Design of Fast Response CO2 Concentration Analyzer and its Application to Automotive Engine. Ph. D Dissertation. Ajou University, Korea
  7. Kwark, J. H., Jeon, C. H. and Chang Y. J. (2003). Transient performance of an si engine by transient response specifications. Int. J. Automotive Technology 4, 3, 109−117
  8. Steula, C., Collings, N. and Hands, T. (1999). Fast response $CO_2$ sensor for automotive exhaust gas analysis. SAE Paper No. 1999-01-3477
  9. Steula, C., Collings, N. and Hands, T. (2000). Real time $CO_2$ measurement to determine transient intake gas composition under EGR conditions. SAE Paper No. 2000-01-2953