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Experimental Assessment of Turbocharged Diesel Engine Transient Emissions during Acceleration, Load Change and Starting
Technical Paper
2010-01-1287
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The control of transient emissions from turbocharged diesel engines remains an important objective to manufacturers, since newly produced engines must meet the stringent criteria concerning exhaust emissions levels as dictated by the legislated Transient Cycles. In the present work, experimental tests are conducted on a medium-duty, turbocharged and after-cooled diesel engine in order to investigate the behavior and formation mechanism of nitric oxide (NO), smoke and combustion noise emissions under various transient operating schedules including acceleration, load change and starting. To this aim, a fully instrumented test bed was set up in order to record and research key engine and turbocharger variables during the transient events. The main parameters measured were nitric oxide concentration and smoke opacity (both using ultra-fast response analyzers) as well as combustion noise. Various other variables were monitored, such as in-cylinder pressure, engine speed, fuel pump rack position, boost pressure and turbocharger speed. The main focus of the experimental investigation was devoted to engine acceleration tests representative of automotive and truck applications, commencing from various engine speeds and loads. The experimental test pattern also included load increases and (cold and hot) starts. Analytical diagrams are provided to explain the behavior of exhaust emissions development in conjunction with turbocharger and governor/fuel pump response. Turbocharger lag was found to be the main cause for the emissions peak values observed during all transient events. During starting, the lack of air and its mismatch with fueling caused excessive black smoke, identified by the extremely high values of exhaust gas opacity.
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Rakopoulos, C., Dimaratos, A., Giakoumis, E., and Peckham, M., "Experimental Assessment of Turbocharged Diesel Engine Transient Emissions during Acceleration, Load Change and Starting," SAE Technical Paper 2010-01-1287, 2010, https://doi.org/10.4271/2010-01-1287.Also In
References
- European Automobile Manufacturers' Association (ACEA) http://www.acea.be
- JD Power and Associates http://www.jdpower.com
- Rakopoulos, C. D. Giakoumis, E. G. Diesel Engine Transient Operation Springer London 978-1-84882-374-7 2009
- Wijetunge, R. S. Brace, C. J. Hawley, J. G. Vaughan, N. D. Horrocks, R. W. Bird, G. L. “Dynamic Behavior of a High Speed Direct Injection Diesel Engine,” SAE Technical Paper 1999-01-0829 1999
- Hagena, J. R. Filipi, Z. S. Assanis, D. N. “Transient Diesel Emissions: Analysis of Engine Operation during a Tip-In” SAE Technical Paper 2006-01-1151 2006
- Rakopoulos, C. D. Giakoumis, E. G. “Review of Thermodynamic Diesel Engine Simulation under Transient Operating Conditions,” SAE Technical Paper 2006-01-0884 2006
- Gullett, B. K. Touati, A. Oudejans, L. Ryan, S. P. “Real-Time Emissions Characterization of Organic Air Toxic Pollutants during Steady State and Transient Operation of a Medium Duty Diesel Engine” Atmos. Environ. 40 4037 4047 2006 10.1016/j.atmosenv.2006.03.031
- http://ec.europa.eu/enterprise/automotive/directives/vehicles/index.htm
- http://www.epa.gov/nvfel/testing/dynamometer.htm#engcycles
- Winterbone, D. E. Benson, R. S. Mortimer, A. G. Kenyon, P. Stotter, A. “Transient Response of Turbocharged Diesel Engines,” SAE Technical Paper 770122 1977
- Watson, N. “Eliminating Rating Effects on Turbocharged Diesel Engine Response,” SAE Technical Paper 840134 1984
- Harndorf, H. Kuhnt H. W. “Improvement of Transient Behavior of Turbocharged Diesel Engines through Additional Air Injection in the Turbocharger” MTZ 56 20 28 1995
- Holmén, B. A. Qu, Y. “Uncertainty in Particle Number Modal Analysis during Transient Operation of Compressed Natural Gas, Diesel and Trap-Equipped Diesel Transit Buses” Environ. Sci. Technol. 38 2413 2423 2004 10.1021/es034560k
- Winterbone, D. E. “Chapter 20: Transient Performance” The Thermodynamics and Gas Dynamics of Internal Combustion Engines II Horlock J.H. Winterbone D.E. Clarendon Press Oxford 0-19-856217-8 1986
- Watson, N. Janota, M. S. Turbocharging the Internal Combustion Engine MacMillan London 0-333-24290-4 1982
- Kang, H. Farell, P. V. “Experimental Investigation of Transient Emissions (HC and NO x ) in a High Speed Direct Injection (HSDI) Diesel Engine,” SAE Technical Paper 2005-01-3883 2005
- Black, J. Eastwood, P. G. Tufail, K. Winstanley, T. Hardalupas, Y. Taylor, A. M. K. P. “Diesel Engine Transient Control and Emissions Response during a European Extra-Urban Drive Cycle (EUDC),” SAE Technical Paper 2007-01-1938 2007
- Campbell, B. Peckham, M. Symonds, J. Parkinson, J. Finch, A. “Transient Gaseous and Particulate Emissions Measurements on a Diesel Passenger Car Including a DPF Regeneration Event,” SAE Technical Paper 2006-01-1079 2006
- Armas, O. Cardenas, M. D. Mata, C. “Smoke Opacity and NO x Emissions from a Bioethanol-Diesel Blend during Engine Transient Operation,” SAE Technical Paper 2007-24-0131 2007
- Bazari, Z. “Diesel Exhaust Emissions Prediction under Transient Operating Conditions,” SAE Technical Paper 940666 1994
- Chan, S. H. He, Y. Sun, J. H. “Prediction of Transient Nitric Oxides in Diesel Exhaust” Proc. Inst. Mech. Eng., Part D: J. Automob. Eng. 213 327 339 1999 10.1243/0954407991526892
- Rakopoulos, C. D. Dimaratos, A. M. Giakoumis, E. G. Rakopoulos D. C. “Exhaust Emissions Estimation during Transient Turbocharged Diesel Engine Operation Using a Two-Zone Combustion Model” Int. J. Veh. Des. 49 1/2/3 125 149 2009
- Giakoumis, E. G. Alafouzos, A. I. “Study of Diesel Engine Performance and Emissions during a Transient Cycle Applying an Engine Mapping-Based Methodology” Appl. Energy 87 1358 1365 2010 10.1016/j.apenergy.2009.09.003
- Ericson, C. Westerberg, B. Egnell, R. “Transient Emission Predictions with Quasi Stationary Models,” SAE Technical Paper 2005-01-3852 2005
- McClure, B. T. “Characterization of the Transient Response of a Diesel Exhaust-Gas Measurement System,” SAE Technical Paper 881320 1988
- Beaumont, A. J. Noble, A. D. Pilley, A. D. “Signal Reconstruction Techniques for Improved Measurement of Transient Emissions,” SAE Technical Paper 900233 1990
- Chan, S. H. Chen, X. S. Arcoumanis, C. “Measurement and Signal Reconstruction of Transient Nitric Oxide Emissions in the Exhaust of a Turbocharged Diesel Engine” Trans. ASME, J. Dynam. Sys., Measur. and Control 119 620 630 1997
- Wachter, W. F. “Analysis of Transient Emissions Data of a Model Year 1991 Heavy Duty Diesel Engine,” SAE Technical Paper 900443 1990
- Bielaczyc, P. Merkisz, J. Pielecha, J. “Investigation of Exhaust Emissions from DI Diesel Engine during Cold and Warm Start,” SAE Technical Paper 2001-01-1260 2001
- Arcoumanis, C. Yao, X. G. “Transient Smoke and Unburnt Hydrocarbon Emissions during Cold-Start in a Turbocharged DI Diesel Engine,” SAE Technical Paper 944122 1994
- “Commission Directive 96/20/EC of 27 March 1996 adapting to technical progress Council Directive 70/157/EEC relating to the permissible sound level and the exhaust system of motor vehicles” Official Journal L 092 April 1996
- Dhaenens, M. van der Linden, G. Nehl, J. Thiele, R. “Analysis of Transient Noise Behavior of a Truck Diesel Engine,” SAE Technical Paper 2001-01-1566 2001
- Alt, N. Sonntag, H. D. Heuer, S. Thiele, R. “Diesel Engine Cold Start Noise Improvement,” SAE Technical Paper 2005-01-2490 2005
- Cambustion Ltd. Cambridge, UK http://www.cambustion.co.uk
- CLD500 Fast NO x Measurement System, User Manual (version 2.2) Cambustion Ltd. 2008
- Collier, T. Gregory, D. Rushton, M. Hands, T. “Investigation into the Performance of an Ultra-Fast Response NO Analyzer Equipped with a NO 2 to NO Converter for Gasoline and Diesel Exhaust NO x Measurements,” SAE Technical Paper 2000-01-2954 2000
- AVL 439 Opacimeter, Operating Manual AVL November 2006
- AVL 450 Combustion Noise Meter, Operating Manual AVL August 2000
- Giakoumis, E.G. Lioutas, S.C. “Estimation of Diesel-Engined Vehicle Nitric Oxide and Soot Emissions during the European Light-Duty Driving Cycle Based on a Transient Mapping Approach” Transp. Res., Part D: Transp. and Environ. 2010
- Taylor, C. F. The Internal Combustion Engine in Theory and Practice 2 MIT Press Cambridge, MA 0-262-70027-1 1985
- Zhao, H. Ladommatos, N Engine Combustion Instrumentation and Diagnostics SAE Inc. Warrendale, Pennsylvania 0-7680-0665-1 2001
- Rust, A. Thien, G. E. “Effect of Transient Conditions on Combustion Noise of NA-DI Diesel Engines,” SAE Technical Paper 870989 1987
- Arregle, J. Bermúdez, V. Serrano, J.R. Fuentes, E. “Procedure for engine transient cycle emissions testing in real time” Exp. Therm. Fluid Sci. 30 485 496 2006 10.1016/j.expthermflusci.2005.10.002
- Andrews, G.E. Clarke, A.G. Rojas, N.Y. “The Transient Storage and Blow-Out of Diesel Particulate in Practical Exhaust Systems,” SAE Technical Paper 2001-01-0204 2001
- Broatch, A. Luján, J. M. Ruiz, S. Olmeda, P. “Measurement of Hydrocarbon and Carbon Monoxide Emissions during the Starting of Automotive DI Diesel Engines” Int. J. Automot. Technol. 9 2 129 140 2008 10.1007/s12239-008-0017-6
- Heywood, J. B. Internal Combustion Engine Fundamentals McGraw-Hill New York 0-07-100499-8 1988
- Weilenmann, M. Favez, J. Y. Alvarez, R. “Cold-Start Emissions of Modern Passenger Cars at Different Low Ambient Temperatures and their Evolution over Vehicle Legislation Categories” Atmos. Environ. 43 2419 2429 2009 10.1016/j.atmosenv.2009.02.005
- Grados, C. V. D. Uriondo, Z. Clemente, M. Espadafor, F. J. J. Gutiérres, J. M. “Correcting Injection Pressure Maladjustments to Reduce NO x Emissions by Marine Diesel Engine” Transp. Res., Part D: Transp. and Environ. 14 61 66 2009 10.1016/j.trd.2008.09.012