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Sub-23 nm Particulate Emissions from a Highly Boosted GDI Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 09, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The European Particle Measurement Program (PMP) defines the current standard for measurement of Particle Number (PN) emissions from vehicles in Europe. This specifies a 50% count efficiency (D50) at 23 nm and a 90% count efficiency (D90) at 41 nm. Particulate emissions from Gasoline Direct Injection (GDI) engines have been widely studied, but usually only in the context of PMP or similar sampling procedures. There is increasing interest in the smallest particles - i.e. smaller than 23 nm - which can be emitted from vehicles. The literature suggest that by moving D50 to 10 nm, PN emissions from GDI engines might increase by between 35 and 50% but there remains a lot of uncertainty. In this work, an existing data set from the Ultraboost engine - a highly boosted engine running at up to 32 bar BMEP - has been evaluated using two filtering methodologies, one with a 50% count efficiency (D50) at 10 nm and a 90% count efficiency (D90) at 23 nm (Filter 1) and the other with a D50 at 10 nm and a D90 at 15 nm (Filter 2) and the results have been compared to PMP equivalent filtering. The effect of engine parameters relevant to highly boosted engines such as exhaust back pressure, EGR, spark and injection timing is analysed, as well as the effect of fuel composition. The results show that an increase in PN emissions of 36% with Filter 1 and 45% with Filter 2 is on average observed with the two different count efficiencies with the baseline fuel.
CitationLeach, F., Lewis, A., Akehurst, S., Turner, J. et al., "Sub-23 nm Particulate Emissions from a Highly Boosted GDI Engine," SAE Technical Paper 2019-24-0153, 2019, https://doi.org/10.4271/2019-24-0153.
Data Sets - Support Documents
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- Andersson, J. et al. , “Particle Measurement Programme (PMP) Light-duty Inter-laboratory Correlation Exercise (ILCE_LD) Final Report,” European Commission Joint Research Centre Institute for Environment and Sustainability, 2007.
- Eastwood, P. , Particulate Emissions from Vehicles (SAE International and John Wiley & Sons, Ltd., 2008). ISBN:978-0-470-98650-9.
- Raza, M. et al. , “A Review of Particulate Number (PN) Emissions from Gasoline Direct Injection (GDI) Engines and Their Control Techniques,” Energies 11(6):1417, 2018, doi:10.3390/en11061417.
- Zhao, H. , Overview of Gasoline Direct Injection Engines, in Advanced Direct Injection Combustion Engine Technologies and Development: Gasoline and Gas engines (Woodhead Publishing Ltd., 2010). ISBN:978-1-845-69389-3.
- Martini, G., Giechaskiel, B., and Dilara, P. , “Future European Emission Standards for Vehicles: The Importance of the UN-ECE Particle Measurement Programme,” Biomarkers 14(sup1):29-33, 2009, doi:10.1080/13547500902965393.
- Gidney, J.T., Twigg, M.V., and Kittelson, D.B. , “Effect of Organometallic Fuel Additives on Nanoparticle Emissions from a Gasoline Passenger Car,” Environmental Science & Technology 44(7):2562-2569, 2010, doi:10.1021/es901868c.
- Giechaskiel, B., Manfredi, U., and Martini, G. , “Engine Exhaust Solid Sub-23 nm Particles: I. Literature Survey,” SAE Int. J. Fuels Lubr 7(3):950-964, 2014, doi:10.4271/2014-01-2834.
- Jang, J. et al. , “Reduction of Particle Emissions from Gasoline Vehicles with Direct fuel Injection Systems Using a Gasoline Particulate Filter,” Science of The Total Environment 644:1418-1428, 2018, doi:10.1016/j.scitotenv.2018.06.362.
- Zheng, Z. et al. , “Investigation of Solid Particle Number Measurement: Existence and Nature of Sub-23nm Particles under PMP Methodology,” Journal of Aerosol Science 42(12):883-897, 2011, doi:10.1016/j.jaerosci.2011.08.003.
- SAE International , “Procedure for the Continuous Sampling and Measurement of Non-Volatile Particulate Matter Emissions from Aircraft Turbine Engines,” SAE Standard: ARP6320, 2018.
- Giechaskiel, B. et al. , “Investigation of Vehicle Exhaust sub-23 nm Particle Emissions,” Aerosol Science and Technology 51(5):626-641, 2017, doi:10.1080/02786826.2017.1286291.
- Down To Ten , available from: http://www.downtoten.com/ (accessed March 7, 2019).
- SUREAL-23 , available from: http://sureal-23.cperi.certh.gr (accessed March 7, 2019).
- PEMs4Nano , available from: http://www.pems4nano.eu (accessed March 7, 2019).
- Giechaskiel, B. et al. , “Particle Number Measurements in the European Legislation and Future JRC Activities,” Combustion Engines 74(3):3-16, 2018, doi:10.19206/CE-2018-301.
- Johansson, A. and Dahlander, P. , “Experimental Investigation of the Influence of Boost on Combustion and Particulate Emissions in Optical and Metal SGDI-Engines Operated in Stratified Mode,” SAE Int. J. Engines 9(2):807-818, 2016, doi:10.4271/2016-01-0714.
- Leach, F. et al. , “Particulate Emissions from a Highly Boosted Gasoline Direct Injection Engine,” International Journal of Engine Research 19(3):347-359, 2018, doi:10.1177/1468087417710583.
- Karjalainen, P. et al. , “Exhaust Particles of Modern Gasoline Vehicles: A Laboratory and an on-Road Study,” Atmospheric Environment 97:262-270, 2014, doi:10.1016/j.atmosenv.2014.08.025.
- Bogarra, M. et al. , “Influence of Three-Way Catalyst on Gaseous and Particulate Matter Emissions During Gasoline Direct Injection Engine Cold-start,” Johnson Matthey Technology Review 61(4):329-341, 2017, doi:10.1595/205651317X696315.
- Braisher, M., Stone, R., and Price, P. , “Particle Number Emissions from a Range of European Vehicles,” SAE Technical Paper 2010-01-0786 , 2010, doi:10.4271/2010-01-0786.
- Leach, F. et al. , “Predicting the Particulate Matter Emissions from Spray-Guided Gasoline Direct-Injection Spark Ignition Engines,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231(6):717-730, 2017, doi:10.1177/0954407016657453.
- Leach, F.C.P. et al. , “The Effect of Oxygenate Fuels on PN Emissions from a Highly Boosted GDI Engine,” Fuel 225:277-286, 2018, doi:10.1016/j.fuel.2018.03.148.
- Leach, F.C.P. et al. , “The Effect of Fuel Composition on Particulate Emissions from a Highly Boosted GDI Engine-An Evaluation of Three Particulate Indices,” Fuel 252:598-611, 2019, doi:10.1016/j.fuel.2019.04.115.
- Reavell, K., Hands, T., and Collings, N. , “A Fast Response Particulate Spectrometer for Combustion Aerosols,” SAE Technical Paper 2002-01-2714 , 2002, doi:10.4271/2002-01-2714.
- Horn, H. , “Calibrated CPC with D50 ≤ 10 nm for Laboratory Use-Together with the Documented Calibration Procedure,” PEMs4Nano deliverable D2.2, 2017. Available from: http://www.pems4nano.eu/download/public_reports/reports_of_project_results_deliverables/PEMs4Nano_D2.2_Calibrated_CPC_for_lab_use_with_calibration_procedure_PU_.pdf.
- Turner, J., Popplewell, A., Patel, R., Johnson, T. et al. , “Ultra Boost for Economy: Extending the Limits of Extreme Engine Downsizing,” SAE Int. J. Engines 7(1):387-417, 2014, doi:10.4271/2014-01-1185.
- Leach, F., Knorsch, T., Laidig, C., and Wiese, W. , “A Review of the Requirements for Injection Systems and the Effects of Fuel Quality on Particulate Emissions from GDI Engines,” SAE Technical Paper 2018-01-1710 , 2018, doi:10.4271/2018-01-1710.
- Leach, F., Stone, R., and Richardson, D. , “The Influence of Fuel Properties on Particulate Number Emissions from a Direct Injection Spark Ignition Engine,” SAE Technical Paper 2013-01-1558 , 2013, doi:10.4271/2013-01-1558.
- “EN228:2008 Automotive Fuels. Unleaded Petrol. Requirements and Test Methods,” 2008.