This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Estimation of the Engine-Out NO2/NOx Ratio in a EURO VI Diesel Engine
Technical Paper
2013-01-0317
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The present work has the aim of developing a semi-empirical
correlation to estimate the NO₂/NOx ratio as a function
of significant engine operating variables in a modern EURO VI
diesel engine.
The experimental data used in the present study were acquired at
the dynamic test bench of ICEAL-PT (Internal Combustion Engine
Advanced Laboratory at the Politecnico di Torino), in the frame of
a research activity on the optimization of a General Motors Euro VI
prototype 1.6-liter diesel engine equipped with a single-stage
variable geometry turbine and a solenoid Common Rail system. The
experimental tests were conducted over the whole engine map.
A preliminary analysis was carried out to evaluate the
uncertainty of the experimental acquired data and the
NO₂/NOx ratio. The main engine variables which were
expected to be related to the NO₂ formation were then identified,
and a second-order polynomial model was introduced to model the
NO₂/NOx ratio as a function of the abovementioned
related engine variables. All the input variable combinations were
considered in the investigation, in order to identify the most
important for the evaluation of the NO₂/NOx ratio.
Finally, a simplified exponential correlation was established to
estimate the NO₂/NOx ratio, that could be used in
several applications, including feed-forward model-based combustion
control. The model was tested and validated on a NEDC cycle (New
European Driving Cycle).
Recommended Content
Authors
Citation
Finesso, R., Misul, D., and Spessa, E., "Estimation of the Engine-Out NO2/NOx Ratio in a EURO VI Diesel Engine," SAE Technical Paper 2013-01-0317, 2013, https://doi.org/10.4271/2013-01-0317.Also In
References
- Heywood , J.B. Internal Combustion Engine Fundamentals McGraw-Hill Intern. Editions 1988
- Carslaw , D.C. Evidence of an increasing NO2/NOx emissions ratio from road traffic emissions Atmospheric Environment Elsevier 2005
- Ibrahim , O. , Wenghoefer , H. , and Jackson , C. Diesel Particulate Filters and NO2 Emission Limits 2009 Directions in Engine-Efficiency and Emissions Research (DEER) August 3 6 2009 DearBorn, Michigan 2009
- Tighe , C.J. , Twigg , M.V , Hayhurst , A.N. , Dennis , J.S. The kinetics of oxidation of Diesel soot by NO2 Combustion and Flame Elsevier 159 2012 77 90 2012
- Goo Jeong Hoi , Irfan Muhammad Faisal , Kim Sang Done , Hong Sung Chang Effects of NO2 and SO2 on selective catalytic reduction of nitrogen oxides by ammonia Chemosphere Elsevier 67 2007 718 723 2007
- Satio , S. , Shinozaki , R. , Suzuki , A. , Jyoutaki , H. et al. Development of Urea-SCR System for Commercial Vehicle Basic Characteristics and Improvement of NOx Conversion at Low Load Operation SAE Technical Paper 2003-01-3248 2003 10.4271/2003-01-3248
- Liu , S. , Li , H. , Liew , C. , Gatts , T. , Wayne , S. , Shade , B. , Clark , N. An experimental investigation of NO2 emission characteristics of a heavy-duty H2-diesel dual fuel engine Int. Journal of Hydrogen Energy 26 12015 12024 2011 10.1016/j.ijhydene.2011.06.058
- Catania A.E. , Finesso R. , Spessa E. Assessment of a Low-Throughput Predictive Model for Indicated Cycle, Combustion Noise and NOx Calculation in Diesel Engines in Steady-State and Transient Operations ICES2012-81094 , Proceedings of the ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES2012 May 6 9 2012 Torino, Piemonte, Italy
- Finesso , R. , and Spessa , E. Real-Time Predictive Modeling of Combustion and NOx Formation in Diesel Engines Under Transient Conditions SAE Technical Paper 2012-01-0899 2012 10.4271/2012-01-0899
- Catania , A.E. , Finesso , R. , Spessa , E. Predictive Zero-Dimensional Combustion Model for DI Diesel Engine Feed-Forward Control Energy Conversion and Management 52 10 Sept. 2011 3159 3175 Elsevier 10.1016/j.enconman.2011.05.003
- Catania , A.E. , Spessa , E. , Finesso , R. , Landsmann , G. , Catanese A. Combustion Prediction by a Low-Throughput Model in Modern Diesel Engines SAE International Journal of Engines 120-3 10.4271/2011-01-1410
- Miller , R. , Davis , G. , Lavoie , G. , Newman , C. et al. A Super-Extended Zel'dovich Mechanism for NOx Modeling and Engine Calibration SAE Technical Paper 980781 1998 10.4271/980781
- Miller , JA , Bowman CT Mechanism and modeling of nitrogen chemistry in combustion Progress in Energy and Combustion Science 1989 15 287 338 1989
- Turns , S.R. An introduction to combustion: concepts and applications 2nd New York, NY McGraw-Hill Higher Education 1999
- Hilliard , J. and Wheeler , R. Nitrogen Dioxide in Engine Exhaust SAE Technical Paper 790691 1979 10.4271/790691
- Pipho , M. , Kittelson , D. , and Zarling , D. NO2 Formation in a Diesel Engine SAE Technical Paper 910231 1991 10.4271/910231
- Lapuerta , M. , Hernández , J. , and Armas , O. Kinetic Modelling of Gaseous Emissions in a Diesel Engine SAE Technical Paper 2000-01-2939 2000 10.4271/2000-01-2939
- ISO/IEC UIDE 98-3 2008
- d'Ambrosio , S. , Finesso , R. and Spessa , E. Calculation Of Mass Emissions, Oxygen Mass Fraction And Thermal Capacity Of The Inducted Charge In SI And Diesel Engines From Exhaust And Intake Gas Analysis Fuel Elsevier 90 152 166 0016-2361 10.1016/j.fuel.2010.08.025 2011
- Catania , A.E. , Finesso , R. , Spessa , E. Real-Time Calculation of EGR Rate and Intake Charge Oxygen Concentration for Misfire Detection in Diesel Engines SAE Paper No. 2011-24-0149 , ICE 2011, 10th International Conference on Engine and Vehicles Capri (NA), Italy September 11 15 2011