Control of Diesel Engine Exhaust Gas Recirculation System Deposits with Fuel Additives
Technical Paper
2022-01-1072
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Exhaust Gas Recirculation (EGR) is employed in diesel engines to reduce
engine-out NOx emissions. Despite the concerted design efforts of manufacturers,
high-pressure Exhaust Gas Recirculation (HP-EGR) systems can be susceptible to
fouling as the particulate matter, hydrocarbons and other entrained species
deposit from the exhaust gas flow as it cools on its passage through the EGR
system. Such deposits can lead to a number of problems including deterioration
of emissions, fuel efficiency, performance and drivability, as well as
breakdowns. The development of an engine test method to enable the study of the
impact of fuel on deposits in the HP-EGR system was reported in 2020. In the
test, a 4-cylinder light-duty diesel engine of 1.6L displacement runs at
conditions conducive to EGR deposit formation over 24 hours and the impact of
fuels on deposit formation is determined through weighing of the EGR system
components before and after the test. This paper describes the application of
the test method to screening fuel additives to determine their potential to
reduce EGR deposits relative to unadditivated diesel conforming to EN590 and
containing 7% volume of Fatty Acid Methyl Ester (FAME). A range of chemistry
classifications were trialed pursuant to different potential modes of action on
reducing deposit formation. Additive chemistries imparting clearly measurable
deposit reduction benefits were identified. The effective additives were found
to reduce the engine-out emissions which are the pre-cursors of EGR deposits and
in turn reduce the deposits themselves. Work is ongoing on fuel additive
technology optimisation to maximise potential benefits in diesel engines with
HP-EGR systems.
Recommended Content
Authors
- Rod Williams - Shell Global Solutions (UK)
- Tushar Bera - Shell Global Solutions (US)
- Stephen Cook - Innospec Fuel Specialties
- Michael Forster - Innospec
- Jacqueline Reid - Innospec
- John Rimmer - Shell Global Solutions (UK)
- Alan Ross - Innospec
- Nigel Broom - Innospec Ltd
- Stephanie Lucas - Shell International Petroleum Company
Topic
Citation
Williams, R., Bera, T., Cook, S., Forster, M. et al., "Control of Diesel Engine Exhaust Gas Recirculation System Deposits with Fuel Additives," SAE Technical Paper 2022-01-1072, 2022, https://doi.org/10.4271/2022-01-1072.Also In
References
- Jääskeläinen , H. and Khair , M.
- Kikuchi , G. , Miyagawa , M. , Yamamoto , Y. , and Inayoshi , N. Accumulation Mechanism of Gasoline EGR Deposit SAE Technical Paper 2017-01-0806 2017 https://doi.org/10.4271/2017-01-0806
- Lance , M. , Sluder , C. , Lewis , S. , and Storey , J. Characterization of Field-Aged EGR Cooler Deposits SAE Int. J. Engines 3 2 2010 126 136 https://doi.org/10.4271/2010-01-2091
- Lance , M. , Storey , J. , Lewis , S. , and Sluder , C. Analysis of Lacquer Deposits and Plugging Found in Field-Tested EGR Coolers SAE Technical Paper 2014-01-0629 2014 https://doi.org/10.4271/2014-01-0629
- Abd-Elhady , M. , Malayeri , M. , and Müller-Steinhagen , H. Fouling Problems in Exhaust Gas Recirculation Coolers in the Automotive Industry Proc. Intl. Conf. on Heat Exchanger Fouling and Cleaning VIII 2009 125 133
- Sluder , C. , Storey , J. , Lewis , S. , Styles , D. et al. Hydrocarbons and Particulate Matter in EGR Cooler Deposits: Effects of Gas Flow Rate, Coolant Temperature, and Oxidation Catalyst SAE Int. J. Engines 1 1 2009 1196 1204 https://doi.org/10.4271/2008-01-2467
- Storey , J. , Sluder , C. , Lance , M. , Styles , D. et al. Exhaust Gas Recirculation Cooler Fouling in Diesel Applications: Fundamental Studies, Deposit Properties and Microstructure Proc. Intl. Conf. on Heat Exchanger Fouling and Cleaning 2011 65 73
- Salvi , A. , Hoard , J. , Bieniek , M. , Abarham , M. et al. Effect of Volatiles on Soot Based Deposit Layers J. Eng. Gas Turbines and Power 136 2014 111401-1 111401-7
- Han , T. , Booth , A. , Song , S. , Styles , D. et al. Review and a Conceptual Model of Exhaust Gas Recirculation (EGR) Cooler Fouling Deposition and Removal Mechanism Proc. Intl. Conf. on Heat Exchanger Fouling and Cleaning 2015 154 165
- Bravo , Y. , Larrosa , C. , Arnal , C. , Alfe , M. et al. Effects of Soot Deposition on EGR Coolers: Dependency on Heat Exchanger Technology and Engine Conditions Proc. Intl. Conf. on Heat Exchanger Fouling and Cleaning 2013 240 246
- Itoh , Y. , Murayama , T. , Zama , Y. , and Furuhata , T. Effects of Cooled Wall Temperature and HC Concentration on Separation Behaviour PM Deposit Layer in an EGR Cooler SAE Technical Paper 2019-01-2357 2019 https://doi.org/10.4271/2019-01-2357
- Furukawa , N. , Goto , S. , and Sunaoka , M. On the Mechanism of Exhaust Gas Recirculation Valve Sticking in Diesel Engines Int. J. Engine Research 15 1 2014 78 86
- Sakaida , S. , Kimiyama , S. , Sakai , T. , Tanaka , K. et al. Effect of Exhaust Gas Composition on EGR Deposit Formation SAE Technical Paper 2019-01-2358 2019 https://doi.org/10.4271/2019-01-2358
- Hoard , J. , Abarham , M. , Styles , D. , Giuliano , J. et al. Diesel EGR Cooler Fouling SAE Int. J. Engines 1 1 2009 1234 1250 https://doi.org/10.4271/2008-01-2475
- Jääskeläinen , H. and Khair , M. https://www.dieselnet.com/tech/engine_egr_sys.php#issues
- Mills , J. https://www.driving.co.uk/news/dieselgate-readers-complain-new-issues-vw-fix/
- 2012 https://www.jdpower.com/business/press-releases/2012-us-heavy-duty-truck-engine-and-transmission-study
- Williams , R. , Cook , S. , Woodall , K. , Clayton , C. et al. Development of an Engine Test to Rate the EGR Deposit Formation Propensity of Fuels in Light-Duty Diesel Engines SAE Int. J. Adv. & Curr. Prac. in Mobility 3 1 2021 337 348 https://doi.org/10.4271/2020-01-2096
- https://www.best-selling-cars.com/europe/2016-full-year-europe-best-selling-car-manufacturers-brands/
- Cook , S. , Bera , T. , Broom , N. , Mulqueen , S. , et al.