International Scientific Journal


Investigation and modelling the effect of injection pressure on heat release parameters and engine-out nitrogen oxides are the main aim of this study. A zero-dimensional and multi-zone cylinder model was developed for estimation of the effect of injection pressure rise on performance parameters of diesel engine. Double-Wiebe rate of heat release global model was used to describe fuel combustion. extended Zeldovich mechanism and partial equilibrium approach were used for modelling the formation of nitrogen oxides. Single cylinder, high pressure direct injection, electronically controlled, research engine bench was used for model calibration. 1000 and 1200 bars of fuel injection pressure were investigated while injection advance, injected fuel quantity and engine speed kept constant. The ignition delay of injected fuel reduced 0.4 crank angle with 1200 bars of injection pressure and similar effect observed in premixed combustion phase duration which reduced 0.2 crank angle. Rate of heat release of premixed combustion phase increased 1.75 % with 1200 bar injection pressure. Multi-zone cylinder model showed good agreement with experimental in-cylinder pressure data. Also it was seen that the NOx formation model greatly predicted the engine-out NOx emissions for both of the operation modes.
PAPER REVISED: 2013-06-14
PAPER ACCEPTED: 2013-07-04
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  1. The Automobile Industry Pocket Guide, European Automobile Manufacturers Association,
  2. Regulation (EC) No 715/2007, Official Journal of the European Union, European Union Parliament,
  3. Benajes J. et. al., Influence of Boost Pressure and Injection Pressure on Combustion Process and Exhaust Emissions in a HD Diesel Engine, 2004-01-1842, SAE International, (2004)
  4. Bianchi G.M. et. al., Numerical Analysis of Passenger Car HSDI Diesel Engines with the 2nd Generation of Common Rail Injection Systems: The Effect of Multiple Injections on Emissions, 2001-01-1068, SAE International, (2001)
  5. Han S., Bae C., The Influence of Fuel Injection Pressure and Intake Pressure on Conventional and Low Temperature Diesel Combustion, 2012-01-1721, SAE International, (2012)
  6. Themel T. et. al., Diesel Engine Response to High Fuel-Injection Pressures, 982683, SAE International, (1998)
  7. Thirouard M. et. al., Potential to Improve Specific Power Using Very High Injection Pressure In HSDI Diesel Engines, 2009-01-1524, SAE International, (2009)
  8. Wen T. et. al., Injection Pressure Influence on Diesel Engine Performance and Emissions, 921488, SAE International, (1992)
  9. Mingfa Y. et. al. , Experimental Study of Multiple Injections and Coupling Effects of Multi-Injection and EGR in a HD Diesel Engine, 2009-01-2807, SAE International, (2009)
  10. Park C. et. al., Effects of Multiple Injections in a HSDI Diesel Engine Equipped with Common Rail Injection System, 2004-01-0127, SAE International, (2004)
  11. Pierpont D. et. al., Reducing Particulate and NOx Using Multiple Injections and EGR in a D.I. Diesel, 950217, SAE International, (1995)
  12. Payri F. et. al., Complete 0D Thermodynamic Predictive Model for Direct Injection Diesel Engines, Applied Energy, 88, (2011), 12, pp. 4632-41
  13. Qi al., Simulation of Quasi-dimensional Combustion Model for Predicting Diesel Engine Performance, Appl Math Model., 35, (2011),2, pp. 930-40
  14. Jayashankara B., Ganesan V., Effect of fuel injection timing and intake pressure on the performance of a DI diesel engine - A parametric study using CFD, Energ Convers Manage., 51, (2010),10, pp. 1835-48
  15. Mobasheri R., Peng Z., Investigation of Pilot and Multiple Injection Parameters on Mixture Formation and Combustion Characteristics in a Heavy Duty DI-Diesel Engine, 2012-01-0142, SAE International, (2012)
  16. Stiesch G., Modeling Engine Spray and Combustion Processes, Springer-Verlag, Berlin, Germany, 2003
  17. Ghojel J.I., Review of the Development and Applications of the Wiebe Function: A Tribute to the Contribution of Ivan Wiebe to Engine Research, Int J Engine Res., 11, (2010), 4, pp.297-312
  18. Miyamoto N. et. al., Description and Analysis of Diesel Engine Rate of Combustion and Performance Using Wiebe's Functions, SAE International, (1985)
  19. Annand W.J.D., Heat Transfer in the Cylinders of Reciprocating Internal Combustion Engines, Proc Instn Mech Engnrs, 1963, Vol. 117, pp. 973-996
  20. Aithal S.M., Modeling of NOx Formation in Diesel Engines Using Finite-rate Chemical Kinetics, Appl Energ., 87, (2010), 7, pp. 2256-65
  21. Curran H.J. et. al., A Comprehensive Modeling Study of n-heptane Oxidation, Combust Flame., 114, (1998), 1-2, pp. 149-77
  22. Maroteaux F., Noel L., Development of a Reduced n-heptane Oxidation Mechanism for HCCI Combustion Modeling, Combust Flame., 146, (2006), 1-2, pp. 246-67
  23. Lavoie G.A. et. al., Experimental and Theoretical Investigation of Nitric Oxide Formation in Internal Combustion Engines, Combustion Science and Technology, 1, (1970), pp 313-326
  24. Chase J. M. W., Nist-Janaf Thermochemical Tables, American Chemical Society and the American Institute of Physics, Newyork, USA, 1999
  25. Nishida K., Hiroyasu H., Simplified Three-Dimensional Modelling of Mixture Formation and Combustion in a D.I. Diesel Engine, 890269, SAE International, (1989)
  26. Petris C. D. et. al., A Mathematical Model for the Calculation of Blow-by Flow and Oil Consumption Depending on Ring Pack Dynamic Part I: Gas Flows, 941940, SAE International, (1994)
  27. Kolchin A., Demidov V., Design of Automotive Engines, MIR Publishers, Moscow, Russia, 1984.
  28. Borman G.L., Ragland K.W., Combustion Engineering, McGraw-Hill, USA, 1998
  29. Bowler L., Throttle Body Fuel Injection (TBI) — An Integrated Engine Control System, 800164, SAE International, (1980)
  30. Heider G. et. al., Two-zone calculation model for the prediction of NO emissions from Diesel engines, 21st CIMAC Cong., Interlaken, Switzerland, 1995, pp. D52
  31. Zeldovich Y.B., The Oxidation of Nitrogen in Combustion and Explosions, Acta physicochim, 21, (1946), pp.577
  32. Baulch D.L. et. al., Evaluated Kinetic Data for Combustion Modeling Supplement-I, J Phys Chem Ref Data., 23, (1994), 6, pp. 847-1033
  33. Hanson R.K., Salimian S., Combustion Chemistry, Springer-Verlag GmbH, New York, USA, 1984
  34. Holman J., Experimental Methods for Engineers. McGraw-Hill Education, New York, USA, 2011
  35. Heywood J. B., Internal Combustion Engine Fundamentals., Mc-Graw Hill, New York, USA, 1988

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