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Sensitivity Study on Thermal and Soot Oxidation Dynamics of Gasoline Particulate Filters
Technical Paper
2019-01-0990
ISSN: 0148-7191, e-ISSN: 2688-3627
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Abstract
Gasoline particulate filters (GPFs) are devices used to filter soot emitted by gasoline direct injection (GDI) engines.
A numerical model for a ceria-coated GPF presented in a previous paper by H. Arunachalam et al. in 2017 was developed to predict internal temperature and soot amount combusted during regeneration events. Being that both the internal temperature and the accumulated soot cannot be directly measured during real-time operation and owing to their critical importance for GPF health monitoring as well as regeneration scheduling, the above model turns out to be a valuable tool for OBD applications. In this paper, we first conduct a stochastic analysis to understand the relation between the model parameters and the initial value of the ceria (IV) oxide volume fraction, as a deterministic value for such a state is not known. A particle swarm optimization (PSO) algorithm was employed to define what type of relationship the model parameters were with respect to the initial state of the ceria (IV) oxide volume fraction. A sensitivity study is then conducted over the model parameters to study parameter identifiability from system measurements. Effects of the initial temperature and initial amount of soot were studied as well. Results indicated that the model is most sensitive to the activation energy of GPF regeneration, agreeing with previous studies. Additionally, the model was shown to be able to predict the GPF temperature with less than 5% error when there was at most 20% uncertainty in the parameters. The results of the relationship between ceria (IV) oxide and the parameters, as well as the sensitivity analysis can be used simultaneously in the future for observer-based design.
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Takahashi, A., Korneev, S., and Onori, S., "Sensitivity Study on Thermal and Soot Oxidation Dynamics of Gasoline Particulate Filters," SAE Technical Paper 2019-01-0990, 2019, https://doi.org/10.4271/2019-01-0990.Data Sets - Support Documents
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References
- Cao , L. et al. Importance of Carbon Dioxide Physiological Forcing to Future Climate Change Proceedings of the National Academy of Sciences 2010
- Joshi , A. and Johnson , T.V. Gasoline Particulate Filters-A Review Emission Control Science and Technology 4 4 219 239 2018
- Zhu , R. , Hu , J. , Bao , X. , He , L. et al. Tailpipe Emissions from Gasoline Direct Injection (GDI) and Port Fuel Injection (PFI) Vehicles at Both Low and High Ambient Temperatures Environmental Pollution 216 223 234 2016
- Karjalainen , P. , Pirjola , L. , Heikkila , J. , Lahde , T. et al. Exhaust Particles of Modern Gasoline Vehicles: A Laboratory and an On-Road Study Atmospheric Environment 97 262 270 2014
- United States, Environmental Protection Agency 2018
- Weiss , M. et al. Will Euro 6 reduce the NOx emissions of new diesel cars?-Insights from on-road tests with Portable Emissions Measurement Systems (PEMS) Atmospheric Environment 62 657 665 2012
- Merkisz , J. , Pielecha , J. , Bielaczyc , P. , and Woodburn , J. Analysis of Emission Factors in RDE Tests as Well as in NEDC and WLTC Chassis Dynamometer Tests SAE Technical Paper 2016-01-0980 2016 10.4271/2016-01-0980
- Cutler , W.A. and Hickman , D.L. 2002
- Saito , C. , Nakatani , T. , Miyairi , Y. , Yuuki , K. et al. New Particulate Filter Concept to Reduce Particle Number Emissions SAE Technical Paper 2011-01-0814 2011 10.4271/2011-01-0814
- Chan , T. , Meloche , E. , Kubsh , J. , Rosenblatt , D. et al. Evaluation of a Gasoline Particulate Filter to Reduce Particle Emissions from a Gasoline Direct Injection Vehicle SAE Int. J. Fuels Lubr. 5 3 1277 1290 2012 10.4271/2012-01-1727
- Sappok , A. , Wang , Y. , Wang , R. , Kamp , C. et al. Theoretical and Experimental Analysis of Ash Accumulation and Mobility in Ceramic Exhaust Particulate Filters and Potential for Improved Ash Management SAE Int. J. Fuels Lubr. 7 2 511 524 2014 10.4271/2014-01-1517
- Görsmann , C. Catalytic Coatings for Active and Passive Diesel Particulate Filter Regeneration Monatshefte für Chemie/Chemical Monthly 136 1 91 105 2005
- Arunachalam , H. , Pozzato , G. , Hoffman , M.A. , and Onori , S. Modeling the Thermal Dynamics Inside a Ceria-Coated Gasoline Particulate Filter 2017 IEEE Conference on Control Technology and Applications (CCTA) Mauna Lani, HI 2017 99 105
- Pozzato , G. , Hoffman , M. , and Onori , S. Multi-Channel Physics-Based Modeling and Experimental Validation of an Uncoated Gasoline Particulate Filter in Clean Operating Conditions 2017 American Control Conference Seattle, WA May 24-26, 2017
- Lide , D.R. and Haynes , W.M. CRC Handbook of Chemistry and Physics: A Ready-Reference Book of Chemical and Physical Data Boca Raton, FL CRC 2009
- Rohan , P. et al. Thermal and Mechanical Properties of Cordierite, Mullite and Steatite Produced by Plasma Spraying Ceramics International 30 4 597 603 2004
- Boger , T. et al. Oxidation of Soot (Printex® U) in Particulate Filters Operated on Gasoline Engines Emission Control Science and Technology 1 1 49 63 2015