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Sources and Tradeoffs for Transient NO and UHC Emissions with Low Temperature Diesel Combustion
Technical Paper
2011-01-1356
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
High bandwidth transient data from a multi-cylinder diesel engine operating in a low temperature combustion regime was analyzed to identify and characterize the transient response behaviors primarily responsible for transient emissions of NO and UHC. Numerous different speed and load transients as well as different combustion modes and control strategies were studied to determine how these parameters affect transient performance. Limitations in the transient response of the air system were found to be the largest contributor to transient emissions, although the mechanism by which these limitations affect performance can vary greatly depending on conditions.
Analysis of the data shows that transient emissions for low temperature combustion strategies are highly dependent on cycle-to-cycle changes in intake charge conditions. No fundamental difference was observed between the transient processes controlling speed and load changes. In addition, the fundamental transient response of the engine system is not a function of the combustion mode or control strategy used, although these factors do have large effects on the magnitude of emissions and other performance parameters. Cyclic build-up or depletion of oxygen caused by the feedback effect of EGR often influences transient behavior even when EGR fraction does not change or after charge flow rates have stabilized. This severely limits the effectiveness of EGR control strategies using mass flow rate of fresh air or EGR for control feedback.
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Glewen, W., Meyer, C., Foster, D., Andrie, M. et al., "Sources and Tradeoffs for Transient NO and UHC Emissions with Low Temperature Diesel Combustion," SAE Technical Paper 2011-01-1356, 2011, https://doi.org/10.4271/2011-01-1356.Also In
References
- Heywood, J.B. “Internal Combustion Engine Fundamentals” McGraw-Hill, Inc. 978-0-07-028637-5 1988
- Kimura, S. Mori, K. Shiino, S. Moriya, T. “Premixed Compression Ignition (PCI) Combustion for Simultaneous Reduction of NOx and Soot in Diesel Engine,” SAE Technical Paper 2004-01-1907 2004 10.4271/2004-01-1907
- Kimura, S. Aoki, O. Ogawa, H. Muranaka, S. Enomoto, Y. “New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines,” SAE Technical Paper 1999-01-3681 1999 10.4271/1999-01-3681
- Iwabuchi, Y. Kawai, K. Shoji, T. Takeda, Y. “Trial of New Concept Diesel Combustion System - Premixed Compression-Ignited Combustion,” SAE Technical Paper 1999-01-0185 1999 10.4271/1999-01-0185
- Samulski, M. J. Jackson, C. C. “Effects of Steady-State and Transient Operation on Exhaust Emissions from Nonroad and Highway Diesel Engines,” SAE Technical Paper 982044 1998 10.4271/982044
- 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 10.4271/2006-01-1151
- Colban, W. F. Miles, P. C. “Effect of Intake Pressure on Performance and Emissions in an Automotive Diesel Engine Operating in Low Temperature Combustion Regimes,” SAE Technical Paper 2007-01-4063 2007 10.4271/2007-01-4063
- Beatrice, C Avolio, G Bertoli, C Del Giacomo, N Guido, C Migliaccio, M. “Critical Aspects on the Control in the Low Temperature Combustion Systems for High Performance DI Diesel Engines” Oil and Gas Science and Technology - Rev IFP 62 4 471 482 2007
- Williams, D.R. “Transient Effect of Speed and Load on Low Temperature Diesel Combustion” M.S. Thesis Department of Mechanical Engineering, University of Wisconsin Madison 2008
- Han, Y. Liu, Z. Zhao, J. Xu, Y. “EGR Response in a Turbo-charged and After-cooled DI Diesel Engine and its Effect on Smoke Opacity,” SAE Technical Paper 2008-01-1677 2008 10.4271/2008-01-1677
- Lapuerta, M. Martos, F. J. Cardenas, M. D. “Determination of Light Extinction Efficiency of Diesel Soot from Smoke Opacity Measurements,” Measurement Science and Technology 16 2048 2055 2005
- AVL “Smoke Measurement,” AVL LIST GMBH Graz 2001
- Longsterth, J. C. Sanders, F. A. Seaney, S. P. Moskwa, J. J. Fronczak, F. J. “Design and Construction of a High-Bandwidth Hydrostatic Dynamometer,” SAE Technical Paper 930259 1993 10.4271/930259
- Feist, M. “Implementation of a Transient Hydrostatic Engine Dynamometer,” MS Thesis University of Wisconsin Madison 2001
- Burton, J. L. Williams, D. R. Glewen, W. J. Andrie, M. J. Krieger, R. B. Foster, D. E. “Investigation of Transient Emissions and Mixed Mode Combustion for a Light Duty Diesel Engine,” SAE Technical Paper 2009-01-1347 2009 10.4271/2009-01-1347
- Opat, R. Ra, Y. Gonzalez, D. M.A. Krieger, R. Reitz, R.D. Foster, D.E. Durrett, R.P. Siewert, R.M. “Investigation of Mixing and Temperature Effects on HC/CO Emissions for Highly Dilute Low Temperature Combustion in a Light Duty Diesel Engine” SAE Paper 2007-01-0193 2007 10.4271/2007-01-0193