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Experimental Study on Thermal Management Strategy of the Exhaust Gas of a Heavy-Duty Diesel Engine Based on In-Cylinder Injection Parameters
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2020 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The aftertreatment system is indispensable for the removal of the noxious pollutants emitted by diesel engines, whose efficiency depends largely on the exhaust gas temperature. Therefore, this study proposes a thermal management strategy including post injection, intake throttling and late post injection to improve the efficiency of the aftertreatment system for a heavy-duty diesel engine. In the experiments, the effects of main injection, post injection, injection pressure and throttle opening on the exhaust gas temperature at diesel oxidation catalyst (DOC) inlet were studied, with the influence of late post injection on the exhaust gas temperature at DOC outlet also investigated. The results showed that the reasonable control of throttle opening and post injection (such as the adjustment of injection timing and injection quantity) can significantly improve the average temperature at DOC inlet from 237.8°C to 333.6°C in the WHTC, with an increase of 40.3%. On the contrary, the influence of main injection timing on the temperature at DOC inlet was very limited, and reducing injection pressure can slightly raise the temperature at DOC inlet, which, however, can also lead to the remarkable increment of particulate matter (PM) emissions and the deterioration of the fuel economy. In addition, with the delayed late post injection timing, carbon monoxide (CO) emissions first increased and then decreased, while total hydrocarbons (THC) emissions kept rising. The temperature at DOC outlet increased with increasing injection quantity and delaying injection timing of late post injection, and the larger injection quantity was, the faster the temperature at DOC outlet increased. The active regeneration of the diesel particulate filter (DPF) can be realized by appropriate control of late post injection, while the lubricating oil dilution and fuel economy deterioration should be avoided by employing proper injection quantity.
CitationTan, P., Duan, L., Li, E., Hu, Z. et al., "Experimental Study on Thermal Management Strategy of the Exhaust Gas of a Heavy-Duty Diesel Engine Based on In-Cylinder Injection Parameters," SAE Technical Paper 2020-01-0621, 2020, https://doi.org/10.4271/2020-01-0621.
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- Sindhu, R., Amba Prasad Rao, G., and Madhu Murthy, K. , “Effective Reduction of NOx Emissions from Diesel Engine Using Split Injections,” Alexandria Engineering Journal 57:1379-1392, 2018.
- Reşitoğlu, I.A. and Keskin, K.A.A. , “The Pollutant Emissions from Diesel-Engine Vehicles and Exhaust Aftertreatment Systems,” Clean Technologies and Environmental Policy 17:15-27, 2015.
- Ristovski, Z., Miljevic, B., Surawski, N. et al. , “Respiratory Health Effects of Diesel Particulate Matter,” Respirology 17:201-212, 2012.
- Yilmaz, N. and Davis, S.M. , “Polycyclic Aromatic Hydrocarbon (PAH) Formation in a Diesel Engine Fueled with Diesel, Biodiesel and Biodiesel/n-Butanol Blends,” Fuel 181:729-740, 2016.
- Johnson, T. , “Review of Vehicular Emissions Trends,” SAE Int. J. Engines 8(3):1152-1167, 2015. https://doi.org/10.4271/2015-01-0993.
- Myoung, C.-L., Ko, A., Kim, J. et al. , “Specific Engine Performance and Gaseous Emissions Characteristics of European Test Cycle and Worldwide Harmonized Driving Cycle for a Heavy-Duty Diesel Engine,” Journal of Mechanical Science and Technology 27:3893-3902, 2013.
- Gosala, D.B., Shaver, G.M., McCarthy, J.E. Jr. et al. , “Fuel-Efficient Thermal Management in Diesel Engines via Valvetrain-Enabled Cylinder Ventilation Strategies,” International Journal of Engine Research, 2019.
- Pajdowski, P. and Puchałka, B. , “The Process of Diesel Particulate Filter Regeneration Under Real Driving Conditions,” in International Conference on the Sustainable Energy and Environmental Development, 214, 2019.
- Ayodhya, A.S. and Narayanappa, K.G. , “An Overview of After-Treatment Systems for Diesel Engines,” Environmental Science and Pollution Research 25:35034-35047, 2018.
- Shao, S., Cheng, J., Zhang, B. et al. , “Effects of a DOC+DPF System on Emission Characteristics of China Π Engineering Vehicle Diesel Engine and Influence Factors of Trapping Efficiency of PM for DOC+DPF System,” Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 41:527-541, 2019.
- Ning, J. and Yan, F. , “Disturbance Rejection in DOC-Out Temperature Control for DPF Regeneration,” Proceedings of the Institution of Mechanical Engineers Part D-Journal of Automobile Engineering 231:487-499, 2017.
- Ye, S., Yap, Y.H., Kolaczkowski, S.T. et al. , “Catalyst ‘Light-Off’ Experiments on a Diesel Oxidation Catalyst Connected to a Diesel Engine-Methodology and Techniques,” Chemical Engineering Research & Design 90:834-845, 2012.
- Mahadevan, G. and Subramanian, S. , “Experimental Investigation of Cold Start Emission Using Dynamic Catalytic Converter with Pre-Catalyst and Hot Air Injector on a Multi Cylinder Spark Ignition Engine,” SAE Technical Paper 2017-01-2367, 2017. https://doi.org/10.4271/2017-01-2367.
- Ramesh, A.K., Odstrcil, T.E., Gosala, D.B. et al. , “Reverse Breathing in Diesel Engines for Aftertreatment Thermal Management,” International Journal of Engine Research 20:862-876, 2019.
- Gao, J., Tian, G., and Sorniotti, A. , “On the Emission Reduction Through the Application of an Electrically Heated Catalyst to a Diesel Vehicle,” Energy Science & Engineering 00:1-15, 2019.
- Gopal Radhakrishnan, K. , “Effect of Catalyzed Particulate Filter and Metal-Based Additive-Added Biodiesel on Engine Emissions,” Environmental Engineering Science 36:589-603, 2019.
- Guan, W., Zhao, H., Ban, Z. et al. , “Exploring Alternative Combustion Control Strategies for Low-Load Exhaust Gas Temperature Management of a Heavy-Duty Diesel Engine,” International Journal of Engine Research 20:381-392, 2019.
- Hamedia, M.R., Doustdara, O., Tsolakisa, A. et al. , “Thermal Energy Storage System for Efficient Diesel Exhaust Aftertreatment at Low Temperatures,” Applied Energy 235:874-887, 2019.
- Shuzhan, B., Guobin, C., Qiang, S. et al. , “Influence of Active Control Strategies on Exhaust Thermal Management for Diesel Particular Filter Active Regeneration,” Applied Thermal Engineering 119:297-303, 2017.
- Smith, J.D., Ruehl, C., and Burnitzki, M. , “Real-Time Particulate Emissions Rates from Active and Passive Heavy-Duty Diesel Particulate Filter Regeneration,” Science of the Total Environment 680:132-113, 2019.