STUDY ON EFFECT OF FUEL INJECTION STRATEGY ON COMBUSTION NOISE AND EXHAUST EMISSION OF DIESEL ENGINE

Abstract

The traditional mechanical fuel supply system has already been o way to satisfy the requirement of more stringent fuel consumption and mission legislation. For the past few years, it has been the hot topic to mprove combustion and emission performance of diesel engine through ptimizing the fuel injection strategy. All kinds of spray, combustion and mission models were studied and then a new 3D spray model coupled with he cavitating flow inside the nozzle was put forward to well consider the rimary atomization induced by cavitating flow and turbulence in nozzle oles. The model, combined with combustion and emission models were used or simulating the single-injection combustion of 1015 diesel engine and alidated through comparing the results from simulation with those from xperiment. With the above verified models, different injection strategies ere further investigated to reveal the effect of pilot injection (PI) timing, uantity and main injection (MI) timing on combustion noise and exhaust mission of diesel engine.

Keywords

Dates

  • Submission Date2012-06-03
  • Revision Date2012-08-02
  • Acceptance Date2012-09-09

DOI Reference

10.2298/TSCI120603159H

References

  1. Xuegang Zhang: Study on the Effect of the Injection Strategy on the Combustion and Emission of a Diesel with Electrical Control System, Master thesis, Dalian University of Technology, Dalian, China, 2010.06.
  2. Morello L., Martinez P., FIAT High Speed Direct Injection Diesel Engine for Application on Passenger Cars. SAE Paper, No.890460, 1989
  3. Stock, D., The New Audi-5 Cylinder Turbo Diesel Engine: The First Passenger Car Diesel Engine with Second Generation Direct Injection, SAE Paper , No.900648, 1990
  4. M. Badami, F. Millo, D.D.D'Amato, Experimental Investigation on Soot and NOX Formation in a DI Common Rail Diesel Engine with Pilot Injection. SAE paper,2001-01-0657,2001
  5. Rinolfi R., Imarisio, R., The Potentials of Third Generation Direct Injection Diesel Engines for Passengers Cars. Engine and Environment International Congress, AVL list Gmbh-Graz, September, 1997.
  6. Rinolfi R., Imarisio, R., The Pententials of a New Common Rail Diesel Fuel Injection System for the next Generation of DI Diesel Engines, 16 Internationals Wiener Motorensymposlum, VDI Verlag Reihe 12, n.239
  7. Ceronetti, G . F., Imarisio, R., Stroppiana, B., Control Strategies and Design Modifications for Exhaust Emission Reduction in Diesel Injection Diesel Engines, FISITA Paper No.905074, 1990.
  8. Baolong Zhou, Principles of Internal Combustion Engine, Beijing, China, 2011
  9. Zhaoliang Yan: Numerical Analysis about Effect of Multiple Injections on Diesel Engine with the Common Rail Injection System, Master thesis, Jilin University, Jilin, China. 2008.04.
  10. Weisheng Zhu: Simulation of the Influence of Pilot Injection and Post Injection on the Combustion and Emission of Diesel Engine, Master thesis, BJTU, Beijing, China, 2009.12
  11. AVL_FIRE Engine Simulation Environment (ESE) Tutorial, V2009, 2009.04
  12. Huh, K.Y. and Gosman, A.D. "A Phenomenological Model of Diesel Spray Atomisation", Proceedings of the International Conference on Multiphase Flows, Sept. 24-27, 1991, Tsukuba, Japan.
  13. Bianchi, G.M. and Pelloni, P. "Modeling the Diesel Fuel Spray Break-up by Using a Hybrid Model", SAE Paper 1999-01-0226.
  14. Corcione, F. E. et al, "Modeling Atomization and Drop Break-up of High-pressure Diesel Sprays", ASME Journal of Engineering for Gas Turbine and Power, Vol. 123, Issue 2, pp. 419-427, April 2001.
  15. AVL_FIRE ICE-Physics-Chemistry, V2010, 2011.10
Volume 17, Issue 1, Pages81 -90