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A Simulation Research on Emission Control Technology of Low-Speed Two-Stroke Diesel Engine Based on EGR and Miller Cycle
Technical Paper
2019-01-0945
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper investigates the influences of EGR and Miller cycle on NOx emission of a heavy-duty two-stroke diesel engine. The NOx emission is strictly restricted by the IMO Tier III Emission Regulations, resulting in an insufficient application of the single emission reduction technology to meet the emission requirements. It is asserted that EGR is the most effective manner to reduce NOx emission, but the fuel consumption increases simultaneously. In consideration of emission reduction with fuel economy, EGR and Miller cycle were combined and studied in this paper. Parameters like in-cylinder pressure, in-cylinder temperature, mass in the chamber, emission (NOx and soot) and fuel consumption rate were investigated based on a single-cylinder 3D model. The wet condition that happens in the engine application was considered in the model development process. The model was validated and compared with the experimental data. The simulation results show the "trade-off" relationship between NOx and soot under EGR, as well as the performance of reducing NOx in different load. This paper, subsequently, used Miller cycle (achieve by delay the closing timing of the exhaust valve with intake boosting) to optimize the fuel consumption rate base on the EGR results. Finally, the combustion conditions under different EGR ratio and different Miller cycle condition were reflected by in-cylinder pressure, the contours of in-cylinder temperatures and the generating area of NOx. According to the simulation results of EGR and Miller cycle, the optimum scheme was giving out to satisfy the IMO Tier Three with better fuel economy performance.
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Zhu, Z., Liang, X., Wang, Y., and Liu, B., "A Simulation Research on Emission Control Technology of Low-Speed Two-Stroke Diesel Engine Based on EGR and Miller Cycle," SAE Technical Paper 2019-01-0945, 2019, https://doi.org/10.4271/2019-01-0945.Data Sets - Support Documents
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References
- Wu , B. , Zhan , Q. , Yu , X. , Lv , G. et al. Effects of Miller Cycle and Variable Geometry Turbocharger on Combustion and Emissions in Steady and Transient Cold Process Applied Thermal Engineering 118 621 629 2017 10.1016/j.applthermaleng. 2017.02.074
- Liu , Y. and Pucheng , P. Asymptotic Analysis on Autoignition and Explosion Limits of Hydrogen-Oxygen Mixtures in Homogeneous Systems International Journal of Hydrogen Energy 31 5 639 647 2006 10.1016/j.ijhydene.2005.05.005
- Kyriakides , N. , Chryssakis , C. , and Kaiktsis , L. Influence of Heavy Fuel Properties on Spray Atomization for Marine Diesel Engine Applications SAE Technical Paper 2009-01-1858 2009 10.4271/2009-01-1858
- Rohani , B. and Bae , C. Effect of Exhaust Gas Recirculation (EGR) and Multiple Injections on Diesel Soot Nano-Structure and Reactivity Applied Thermal Engineering 116 160 169 2017 10.1016/j.applthermaleng.2016.11.116
- Yan , B. , Tong , L. , Wang , H. , Zheng , Z. et al. Experimental and Numerical Investigation of the Effects of Combustion Chamber Reentrant Level on Combustion Characteristics and Thermal Efficiency of Stoichiometric Operation Natural Gas Engine with EGR Applied Thermal Engineering 123 1473 1483 2017 10.1016/j.applthermaleng.2017.05.139
- Yu , J. , Duan , S. , Zhang , W. , and Yu , G. Marine Diesel NOx Emission Reduction Study 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011 - Proceedings 2011 2315 2318 10.1109/ICEICE.2011.5776960
- Zhao , C. , Yu , G. , Yang , J. , Bai , M. et al. Achievement of Diesel Low Temperature Combustion through Higher Boost and EGR Control Coupled with Miller Cycle SAE Technical Paper 2015-01-0383 2015 10.4271/2015-01-0383
- Gonca , G. Comparative Performance Analyses of Irreversible OMCE (Otto Miller Cycle Engine)-DiMCE (Diesel Miller Cycle Engine)-DMCE (Dual Miller Cycle Engine) Energy 109 152 159 2016 10.1016/j.energy.2016.04.049
- Haifeng , L. , Huixiang , Z. , Hu , W. , Xian , Z. et al. A Numerical Study on Combustion and Emission Characteristics of Marine Engine through Miller Cycle Coupled with EGR and Water Emulsified Fuel SAE Technical Paper 2016-01-2187 2016 10.4271/2016-01-2187
- Tavakoli , S. , Jazayeri , S.A. , Fathi , M. , and Jahanian , O. Miller Cycle Application to Improve Lean Burn Gas Engine Performance Energy 109 190 200 2016 10.1016/j.applthermaleng.2017.05.139