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Numerical Analysis on the Potential of Reducing DPF Size Using Low Ash Lubricant Oil
Technical Paper
2018-01-1760
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel particulate filter (DPF) is necessary for diesel engines to meet the increasingly stringent emission regulations. Many studies have demonstrated that the lubricant derived ash has a significant effect on DPF pressure drop and engine fuel economy, and this effect becomes more and more severe with the increasing of operating hours of the DPF because the ash accumulated in the DPF cannot be removed by regeneration. It is reported that most of the DPFs operated with more ash than soot in the filter for more than three quarters of the time during its lifetime [1]. In order to mitigate this problem, the original engine manufacturers (OEM) tend to use an oversized DPF for the engine. However, it will increase the costs of the DPF and reduce the compactness of the engine aftertreatment system.
With the development of the lubricant additives technology, some OEMs and lubricant oil manufacturers are concerning that if there is any possibility to reduce DPF size using low ash lubricant oil. In this work, a numerical DPF model was built to estimate the DPF pressure drop at different soot loading and ash loading levels. With the model, the lifetime averaged fuel penalty of the DPFs with different sizes and operating with different ash content lubricant oils were calculated. Based on the calculation results, the potential of reducing DPF size using low ash lubricant oil was analyzed under the same design criteria of engine fuel consumption penalty. The analysis results show that the DPF size can be reduced by about 6% by lowering the lubricant oil ash content from 1.0% to 0.75%, and 14% by lowering from 1.0% to 0.5%. The DPF size can be maximally reduced by lowering the lubricant oil ash content from 1.0% to 0.25%, which can reduce about 22% of the DPF size. While the DPF size can be only reduced by 7% by using no ash lubricant oil because of no “membrane effect” of the ash on the soot depth filtration in the DPF. The role of engine-out particulate matters (PM) emission and DPF regeneration control strategy on this potential was also studied, and the potential is slightly increased when the engine has a higher engine-out PM emission or a DPF regeneration control strategy with ash effects corrections is applied.
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Zhang, J., Qi, J., Shuai, S., Wang, L. et al., "Numerical Analysis on the Potential of Reducing DPF Size Using Low Ash Lubricant Oil," SAE Technical Paper 2018-01-1760, 2018, https://doi.org/10.4271/2018-01-1760.Data Sets - Support Documents
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References
- Sappok , A. and Wong , V. Lubricant-Derived Ash Properties and Their Effects on Diesel Particulate Filter Pressure-Drop Performance Journal of Engineering for Gas Turbines and Power 133 3 032805 2010 10.1115/1.4001944
- Shuai , S. , Tang , T. , Zhao , Y. , and Hua , L. State of the Art and Outlook of Diesel Emission Regulations and Aftertreatment Technologies J. Automotive Safety and Energy 3 03 200 217 2012 10.3969/j.issn.1674-8484.2012.03.002
- Khair , M. A Review of Diesel Particulate Filter Technologies SAE Technical Paper 2003-01-2303 2003 10.4271/2003-01-2303
- Guan , B. , Zhan , R. , Lin , H. et al. Review of the State-of-the-Art of Exhaust Particulate Filter Technology in Internal Combustion Engines Journal of Environmental Management 154 0 225 258 2015 10.1016/j.jenvman.2015.02.027
- Morcos , M. , Ayyappan , P. , and Harris , T. Characterization of DPF Ash for Development of DPF Regeneration Control and Ash Cleaning Requirements SAE Technical Paper 2011-01-1248 2011 10.4271/2011-01-1248
- Sappok , A. , Munnis , S. , and Wong , V. Individual and Synergistic Effects of Lubricant Additive Components on Diesel Particulate Filter Ash Accumulation and Performance ASME Internal Combustion Engine Division Spring Technical Conference 531 546 2012 10.1115/ICES2012-81237
- Sappok , A. and Wong , V. Ash Effects on Diesel Particulate Filter Pressure Drop Sensitivity to Soot and Implications for Regeneration Frequency and DPF Control SAE Int. J. Fuels Lubr. 3 1 380 396 2010 10.4271/2010-01-0811
- Shimizu , Y. , Fujita , H. , and Kasai , M. Study of Non-Phosphorus and Non-Ash Engine Oil SAE Technical Paper 2011-01-2127 2011 10.4271/2011-01-2127
- McGeehan , J. , Van Dam , W. , Narasaki , K. , Boffa , A. et al. Extending the Boundaries of Diesel Particulate Filter Maintenance with Ultra-Low Ash-Zero-Phosphorus Oil SAE Int. J. Fuels Lubr. 5 3 1240 1263 2012 10.4271/2012-01-1709
- McGeehan , J. , Van Dam , W. , Nelson , K. , Boffa , A. et al. Minimizing Diesel Particulate Filter Incombustibles by Using Ultra Low Ash-Zero Phosphorus Oil SAE Int. J. Fuels Lubr. 7 3 890 900 2014 10.4271/2014-01-2798
- AVL List GmbH 2014
- Koltsakis , G. , Haralampous , O. , Depcik , C. , and Ragone , J.C. Catalyzed Diesel Particulate Filter Modeling Reviews in Chemical Engineering 29 1 1 61 2013 10.1515/revce-2012-0008
- Koltsakis , G. and Stamatelos , A. Modeling Thermal Regeneration of Wall-Flow Diesel Particulate Traps Reactors, Kinetics, and Catalysis 42 1662 1672 1996 10.1002/aic.690420618
- Bissett , E. Mathematical Model of the Thermal Regeneration of a Wall-Flow Monolith Diesel Particulate Filter Chemical Engineering Science 39 1233 1244 1984 10.1016/0009-2509(84)85084-8
- Aravelli , K. and Heibel , A. Improved Lifetime Pressure Drop Management for Robust Cordierite (RC) Filters with Asymmetric Cell Technology ACT SAE Technical Paper 2007-01-0920 2007 10.4271/2007-01-0920
- Kamp , C. , Sappok , A. , and Wong , V. Soot and Ash Deposition Characteristics at the Catalyst-Substrate Interface and Intra-Layer Interactions in Aged Diesel Particulate Filters Illustrated Using Focused Ion Beam (FIB) Milling SAE Int. J. Fuels Lubr. 5 2 696 710 2012 10.4271/2012-01-0836
- Zhang , J. , Zhang , W. , Li , C. et al. Experimental Study on Hydrocarbon Injection Active Regeneration Processes of Catalyzed Diesel Particulate Filter Proceedings of the CSEE 36 16 4402 4407 2016 10.13334/j.0258-8013.pcsee.160384
- Sappok , A. , Santiago , M. , Vianna , T. , and Wong , V. Characteristics and Effects of Ash Accumulation on Diesel Particulate Filter Performance: Rapidly Aged and Field Aged Results SAE Technical Paper 2009-01-1086 2009 10.4271/2009-01-1086
- Tong , D. , Zhang , J. , Wang , G. , Yang , B. et al. Experimental Study and Numerical Interpretation on the Temperature Field of DPF during Active Regeneration with Hydrocarbon Injection SAE Technical Paper 2018-01-1257 2018 10.4271/2018-01-1257
- Singh , N. , Rutland , C. , Foster , D. , Narayanaswamy , K. et al. Investigation into Different DPF Regeneration Strategies Based on Fuel Economy Using Integrated System Simulation SAE Technical Paper 2009-01-1275 2009 10.4271/2009-01-1275
- Gong , J. and Rutland , C. Pulsed Regeneration for DPF Aftertreatment Devices SAE Technical Paper 2011-24-0182 2011 10.4271/2011-24-0182
- Hannu , J. 2007
- Tang , T. , Cao , D. , Zhang , J. , Zhao , Y. et al. Experimental Study of Catalyzed Diesel Particulate Filter with Exhaust Fuel Injection System for Heavy-Duty Diesel Engines SAE Technical Paper 2014-01-1496 2014 10.4271/2014-01-1496
- Froelund , K. and Ross , M. Laboratory Benchmarking of Seven Model Year 2003-2004 Heavy-Duty Diesel Engines Using a CI-4 Lubricant SAE Technical Paper 2005-01-3715 2005 10.4271/2005-01-3715
- Jiang , J. , Gong , J. , Liu , W. , Chen , T. et al. Analysis on Filtration Characteristic of Wall-Flow Filter for Ash Deposition in Cake Journal of Aerosol Science 95 73 83 2016 10.1016/j.jaerosci.2016.01.009