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Determination of Suspended Exhaust PM Mass for Light-Duty Vehicles
Technical Paper
2014-01-1594
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This study provides one of the first evaluations of the integrated particle size distribution (IPSD) method in comparison with the current gravimetric method for measuring particulate matter (PM) emissions from light-duty vehicles. The IPSD method combines particle size distributions with size dependent particle effective density to determine mass concentrations of suspended particles. The method allows for simultaneous determination of particle mass, particle surface area, and particle number concentrations. It will provide a greater understanding of PM mass emissions at low levels, and therefore has the potential to complement the current gravimetric method at low PM emission levels. Six vehicles, including three gasoline direct injected (GDI) vehicles, two port fuel injected (PFI) vehicles, and one diesel vehicle, were tested over the Federal Test Procedure (FTP) driving cycle on a light-duty chassis dynamometer. PM mass emissions were determined by the gravimetric (MGravimetric) and IPSD (MIPSD) methods. The results show a systematic bias between methods, with the MIPSD underestimating particle mass relative to MGravimetric (MIPSD = 0.63 × MGravimetric), although there is a relatively strong correlation (R2=0.79) between the methods. The real-time MIPSD showed that more than 55% of the PM mass comes from the first 100 seconds of the FTP for GDI vehicles.
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Authors
- Yang Li - University of California
- Jian Xue - University of California
- Kent Johnson - University of California
- Thomas Durbin - University of California
- Mark Villela - University of California
- Liem Pham - University of California
- Seyedehsan Hosseini - University of California
- Zhongqing Zheng - University of California
- Daniel Short - University of California
- George Karavalakis - University of California
- Akua Asa-Awuku - University of California
- Heejung Jung - University of California
- Xiaoliang Wang - Desert Research Institute
- David Quiros - California Air Resources Board
- Shaohua Hu - California Air Resources Board
- Tao Huai - California Air Resources Board
- Alberto Ayala - California Air Resources Board
Citation
Li, Y., Xue, J., Johnson, K., Durbin, T. et al., "Determination of Suspended Exhaust PM Mass for Light-Duty Vehicles," SAE Technical Paper 2014-01-1594, 2014, https://doi.org/10.4271/2014-01-1594.Also In
References
- United States Environmental Protection Agency Code of Federal Regulations 40 CFR Part 1065, Title 40 - Protection of the Environment, Part 1065 - Engine Testing Procedures 2011
- Code of Federal Regulations, Protection of the Environment, Title 40, Parts 80 and 86 U.S. Government Printing Office Washington 2005
- CARB Staff report: LEV III PM, technical support document - development of particulate matter mass standards for future light-duty vehicles 2012
- United States Environmental Protection Agency Regulatory Announcement: EPA Proposes Tier 3 Motor Vehicle Emission and Fuel Standards 2013
- Giechaskiel , B. ; Mamakos , A. ; Andersson , J. ; Dilara , P. ; Martini , G. ; Schindler , W. ; Bergmann , A. Measurement of Automotive Nonvolatile Particle Number Emissions within the European Legislative Framework: A Review Aerosol Sci Tech 2012 46 7 719 749
- Liu , Z. G. ; Vasys , V. N. ; Dettmann , M. E. ; Schauer , J. J. ; Kittelson , D. B. ; Swanson , J. Comparison of Strategies for the Measurement of Mass Emissions from Diesel Engines Emitting Ultra-Low Levels of Particulate Matter Aerosol Sci Tech 2009 43 11 1142 1152
- Maricq , M. M. ; Ning , X. The effective density and fractal dimension of soot particles from premixed flames and motor vehicle exhaust J Aerosol Sci 2004 35 10 1251 1274
- Ristimaki , J. ; Virtanen , A. ; Marjamaki , M. ; Rostedt , A. ; Keskinen , J. On-line measurement of size distribution and effective density of submicron aerosol particles J Aerosol Sci 2002 33 11 1541 1557
- www.dekati.com
- Lehmann , U. ; Niemela , V. ; Mohr , M. New method for time-resolved diesel engine exhaust particie mass measurement Environ Sci Technol 2004 38 21 5704 5711
- Mamakos , A. ; Ntziachristos , L. ; Samaras , Z. Evaluation of the Dekati mass monitor for the measurement of exhaust particle mass emissions Environ Sci Technol 2006 40 15 4739 4745
- Operation and Service Manual Model 3090 Engine Exhaust Particle Sizer Spectrometer TSI Inc. 2011
- Johnson , T. , Caldow , R. , Pöcher , A. , Mirme , A. et al. A New Electrical Mobility Particle Sizer Spectrometer for Engine Exhaust Particle Measurements SAE Technical Paper 2004-01-1341 2004 10.4271/2004-01-1341
- Jeong , C. H. ; Evans , G. J. Inter-Comparison of a Fast Mobility Particle Sizer and a Scanning Mobility Particle Sizer Incorporating an Ultrafine Water-Based Condensation Particle Counter Aerosol Sci Tech 2009 43 4 364 373
- Asbach , C. ; Kaminski , H. ; Fissan , H. ; Monz , C. ; Dahmann , D. ; Mulhopt , S. ; Paur , H. R. ; Kiesling , H. J. ; Herrmann , F. ; Voetz , M. ; Kuhlbusch , T. A. J. Comparison of four mobility particle sizers with different time resolution for stationary exposure measurements J Nanopart Res 2009 11 7 1593 1609
- Wang , X. ; Grose , M. ; Caldow , R. ; Swason J. ; Watts W. ; Kittelson , D. B. Improvement of Engine Exhaust Particle Sizer Spectrometer for Engine Emissions Measurement 28th AAAR Annual Conference Minneapolis, MN 2009
- Zheng , Z. Q. ; Durbin , T. D. ; Karavalakis , G. ; Johnson , K. C. ; Chaudhary , A. ; Cocker , D. R. ; Herner , J. D. ; Robertson , W. H. ; Huai , T. ; Ayala , A. ; Kittelson , D. B. ; Jung , H. S. Nature of Sub-23-nm Particles Downstream of the European Particle Measurement Programme (PMP)-Compliant System: A Real-Time Data Perspective Aerosol Sci Tech 2012 46 8 886 896
- Liu , Z. ; Swanson , J. ; Kittelson , D. B. ; Pui , D. Y. H. Comparison of Methods for Online Measurement of Diesel Particulate Matter Environ Sci Technol 2012 46 11 6127 6133
- Park , K. ; Cao , F. ; Kittelson , D. B. ; McMurry , P. H. Relationship between particle mass and mobility for diesel exhaust particles Environ Sci Technol 2003 37 3 577 583
- Shah , S. D. ; Cocker , D. R. A fast scanning mobility particle spectrometer for monitoring transient particle size distributions Aerosol Sci Tech 2005 39 6 519 526
- Maricq , M. M. , Maricq M. M. Chapter 2: Characterization of combustion and engine exhaust particles Nanoparticles in medicine and environment: Inhalation and health effects Marijnissen J. C. M. , Gradon L. Springer 19 37 978-90-481-2631-6 2010
- Zhang , S. and McMahon , W. Particulate Emissions for LEV II Light-Duty Gasoline Direct Injection Vehicles SAE Int. J. Fuels Lubr. 5 2 637 646 2012 10.4271/2012-01-0442
- Harris , S. J. ; Maricq , M. M. Signature size distributions for diesel and gasoline engine exhaust particulate matter J Aerosol Sci 2001 32 6 749 764
- Xue , J. ; Li , Y. ; Wang , X. ; Durbin , T. ; Johnson , K. ; Pham , L. ; Short , D. ; Asa-Awuku , A. ; Karavalakis , G. ; Quiros , D. ; Hu , S. ; Huai , T. ; Ayala , A. ; Jung , H. S. Comparison of EEPS and SMPS measured particle size distributions at steady state engine operating conditions with emphasis on light duty vehicles In preparation 2014