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Numerical and Experimental Analysis of the Flow Field within a Lean NOx Trap for Diesel Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 11, 2011 by SAE International in United States
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The present study aims at analyzing the flow field within a Lean NOx Trap (LNT). To this purpose a twofold approach based on the synergic use of numerical and non-intrusive experimental techniques was adopted. The measurements were carried out at a steady flow rig in terms of global performances and local velocity measurements. In particular, mass flow rates and pressure drops were used to define the global fluid dynamic efficiency of the system, while the Laser Doppler Anemometry (LDA) technique was employed to determine the flow field within the aftertreatment apparatus. At the same time, a finite volume CFD code was adopted for the numerical analysis. The comparison between experimental and numerical data displayed a good agreement in terms of global and local quantities. Specifically, the numerical code well-reproduced the main structure within the emission control system. Furthermore, the analysis showed the influence of the trap on the flow field and the pressure drop distribution through the aftertreatment device.
CitationAlgieri, A., Bova, S., De Bartolo, C., and Nigro, A., "Numerical and Experimental Analysis of the Flow Field within a Lean NOx Trap for Diesel Engines," SAE Technical Paper 2011-24-0180, 2011, https://doi.org/10.4271/2011-24-0180.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Johnson, T., “Diesel Emission Control in Review SAE Int. J. Fuels Lubr. 2(1):1-12, 2009, doi:10.4271/2009-01-0121.
- Twigg, M. V., 2007, Progress and future challenges in controlling automotive exhaust gas emissions, Applied Catalysis B: Environmental 70, 2-15.
- Xu, L., Graham, G., McCabe, R., 2007, A NOx trap for low-temperature lean-burn-engine applications, Catalysis Letters, Vol. 115, Nos. 3-4, June.
- Lehtoranta, K., Matilainen, P., Kinnunen, T., Heikkilä, J. et al., “Diesel Particle Emission Reduction by a Particle Oxidation Catalyst,” SAE Technical Paper 2009-01-2705, 2009, doi:10.4271/2009-01-2705.
- Algiera, A., Amelio, M., Bova, S., and Morrone, P., “Energy Efficiency Analysis of Monolith and Pellet Emission Control Systems in Unidirectional and Reverse-Flow Designs,” SAE Int. J. Engines 2(2):684-693, 2010, doi:10.4271/2009-24-0155.
- Armaroli, T., Lambert, A., Lavy, J., Raux, S. et al., “Sulfated and Desulfated Lean NOx-trap Characterization for Optimized Management Strategy in Gasoline Applications,” SAE Technical Paper 2006-01-1068, 2006, doi:10.4271/2006-01-1068.
- Heywood, J. B., 1998, Internal Combustion Engine Fundamentals, Mc Graw Hill, New York.
- Zhijun, W., Zhen, H., 2001, In-Cylinder Swirl Formation Process In Four-Valve Diesel Engine, Experiments in Fluids, 31, pp. 467-473.
- Bianchi, G. and Fontanesi, S., “On the Applications of Low-Reynolds Cubic k-εTurbulence Models in 3D Simulations of ICE Intake Flows,” SAE Technical Paper 2003-01-0003, 2003, doi:10.4271/2003-01-0003.
- Xu, H., “Some Critical Technical Issues on the Steady Flow Testing of Cylinder Heads,” SAE Technical Paper 2001-01-1308, 2001, doi:10.4271/2001-01-1308.
- Hascher, H. G., Novak, M., Lee, K., Schock, H. J., Rezaei, H., Koochesfahani, M., 1998, An evaluation of IC-engine flows with the use of modern in-cylinder measuring techniques, 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, July 13-15.
- Onorati, A., Ferrari, G., Cerri, T., Cacciatore, D. et al., “1D Thermo-Fluid Dynamic Simulation of a High Performance Lamborghini V12 S.I. Engine,” SAE Technical Paper 2005-01-0692, 2005, doi:10.4271/2005-01-0692.
- Onorati, A., Ferrari, G., D'Errico, G., and Montenegro, G., “The Prediction of 1D Unsteady Flows in the Exhaust System of a S.I. Engine Including Chemical Reactions in the Gas and Solid Phase,” SAE Technical Paper 2002-01-0003, 2002, doi:10.4271/2002-01-0003.
- Haworth, D. C., Jansen, K., 2000, Large-eddy simulation on unstructured deforming meshes: towards reciprocating IC engines, Computers & Fluids, 29 (5), pp. 493-524.
- Baratta, M., Catania, A. E., Spessa, E., and Liu, R. L., 2005, Multidimensional Predictions of In-Cylinder Turbulent Flows: Contribution to the Assessment of k-ε Turbulence Model Variants for Bowl-in-Piston Engines, Journal of Engineering for Gas Turbines and Power, 127 (4), pp. 883-896.
- Blair, G., McBurney, D., McDonald, P., McKernan, P. et al., “Some Fundamental Aspects of the Discharge Coefficients of Cylinder Porting and Ducting Restrictions,” SAE Technical Paper 980764, 1998, doi:10.4271/980764.
- Bohac, S. and Landfahrer, K., “Effects of Pulsating Flow on Exhaust Port Flow Coefficients,” SAE Technical Paper 1999-01-0214, 1999, doi:10.4271/1999-01-0214.
- Blair, G. and Drouin, F., “Relationship Between Discharge Coefficients and Accuracy of Engine Simulation,” SAE Technical Paper 962527, 1996, doi:10.4271/962527.
- Chan, V. S. S., Turner, J. T., 2000, Velocity measurement inside a motored internal combustion engine using three-component laser Doppler anemometry, Optics & Laser Technology, 32, pp. 557-566.
- Bevan, K. and Ghandhi, J., “PIV Measurements of In-Cylinder Flow in a Four-Stroke Utility Engine and Correlation with Steady Flow Results,” SAE Technical Paper 2004-32-0005, 2004, doi:10.4271/2004-32-0005.
- Algieri, A., Bova, S., De Bartolo, C., 2005, Experimental and Numerical Investigation on the Effects of the Seeding Properties on LDA Measurements. Journal of Fluids Engineering 127 (3), pp. 514-522.
- Algieri, A., Bova, S., and De Bartolo, C., 2006, Influence of Valve Lift and Throttle Angle on Intake Flow in a High-Performance Four-Stroke Motorcycle Engine, Journal of Engineering for Gas Turbines and Power, Vol. 128 (4), pp. 934-941.
- Wilcox, D., Turbulence Modeling for CFD. Third ed. 2002: DCW Industries.
- HEXPRESS v.2.8-4, 2009 Numeca International, Brussels, Belgium.
- Guojiang, W., Song, T., 2005, CFD simulation of the effect of upstream flow distribution of light-off performance of a catalytic converter, Energy Conversion and Management, Vol. 46, pp. 2010-2031.
- Windmann, J., Braun, J., Zacke, P., Tischer, S. et al., “Impact of the Inlet Flow Distribution on the Light-Off Behavior of a 3-Way Catalytic Converter,” SAE Technical Paper 2003-01-0937, 2003, doi:10.4271/2003-01-0937.
- FLUENT v. 6.2. 16, 2005, Fluent Inc., Lebanon, NH.
- Algieri, A., Bova, S., De Bartolo, C. and Nigro, A., 2007, Numerical and Experimental Analysis of the Intake Flow in a High Performance Four-Stroke Motorcycle Engine: Influence of the Two-Equation Turbulence Models, ASME Journal of Engineering for Gas Turbines and Power, Vol. 129, n. 4. pp. 1095-1105.