This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Split Injection and Intake Air Humidification on Combustion and Emission Characteristics of a Marine Diesel Engine in Partially Premixed Low-Temperature Combustion Mode
Technical Paper
2020-01-0298
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The objective of this study was to investigate combined effects of split injection strategies and intake air humidification on combustion and emissions of a partially premixed charge compression ignition (PCCI) marine diesel engine. In this research, a three-dimensional numerical model was established by a commercial code AVL-Fire to explore in-cylinder combustion process and pollutant formation factors in a four-stoke supercharged intercooled marine diesel engine under partial load at 1350 r/min. The novelty of this study is to combine different water-fuel ratios and fuel injection parameters (pilot injection timing and main injection timing) to find the optimized way to improve engine performance as well as NOx-soot emissions, thus meeting the increasingly stringent emissions restriction. The results indicate that as the main injection timing advances (-14°CA to -20°CA aTDC), the in-cylinder peak pressure increases by about 10%, the main injection ignition delay (MI ignition delay) becomes longer, the CA50 is advanced near the top dead center (TDC), which is effective to improve the indicated thermal efficiency (ITE). Meanwhile, soot emissions are reduced by about 50% compared with the original engine at the -20°CA aTDC main injection timing. The early pilot injection timing can form relatively uniform temperature field and concentration field in the cylinder before the start of main injection (SOMI) timing, which is advantageous to fuel-air mixing. The high level of water-fuel ratio is utilized to reduce overall combustion temperatures and achieve low temperature combustion of the diesel engine. NOx emissions significantly decrease by about 75% compared with the original engine when the water-fuel mass ratio is 2.0. All in all, the technical route to improve the NOx-soot trade-off relationship is found through the coupling optimization of split injection strategies and intake air humidification. Meanwhile, the indicated specific fuel consumption (ISFC) is reduced and NOx-ISFC trade-off relationship is improved.
Authors
Topic
Citation
Cai, Y., Zhao, C., Wang, K., Kong, S. et al., "Effect of Split Injection and Intake Air Humidification on Combustion and Emission Characteristics of a Marine Diesel Engine in Partially Premixed Low-Temperature Combustion Mode," SAE Technical Paper 2020-01-0298, 2020, https://doi.org/10.4271/2020-01-0298.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 |
Also In
References
- Nielsen , K.V. , Blanke , M. , Eriksson , L. et al. Marine Diesel Engine Control to Meet Emission Requirements and Maintain Maneuverability Control Engineering Practice 76 12 21 2018
- Troberg , M. and Delneri , D. Tier III Emission Roadmap for Marine Engine Application MTZ Worldwide 71 6 12 17 10.1007/bf03227019
- Stanglmaier , R. and Roberts , C. Homogeneous Charge Compression Ignition (HCCI): Benefits, Compromises, and Future Engine Applications SAE Technical Paper 1999-01-3682 1999 https://doi.org/10.4271/1999-01-3682
- Kanda , T. , Hakozaki , T. , Uchimoto , T. et al. PCCI Operation with Early Injection of Conventional Diesel Fuel SAE Technical Paper 2005-01-0378 2005 https://doi.org/10.4271/2005-01-0378
- Mikulski , M. , Ramesh , S. , and Bekdemir , C. Reactivity Controlled Compression Ignition for Clean and Efficient Ship Propulsion Energy 182 1173 1192 2019
- Zhu , H.Y. , Bohac , S. , Nakashima , K. et al. Effect of Fuel Oxygen on the Trade-Offs between Soot, NO x and Combustion Efficiency in Premixed Low-Temperature Diesel Engine Combustion Fuel 112 459 465 2013
- Shayler , P. , Brooks , T. , and Pugh , G. The Influence of Pilot and Split-Main Injection Parameters on Diesel Emissions and Fuel Consumption SAE Technical Paper 2005-01-0375 2005 https://doi.org/10.4271/2005-01-0375
- Huang , H.Z. , Zhu , Z.J. , Zhu , J.Z. et al. Experimental and Numerical Study of Pre-Injection Effects on Diesel-n-Butanol Blends Combustion Applied Energy 249 377 391 2019
- Jain , A. , Singh , A.P. , and Agarwal , A.K. Effect of Split Fuel Injection and EGR on NO x and PM Emission Reduction in a Low Temperature Combustion (LTC) Mode Diesel Engine Energy 122 249 264 2017
- Jain , A. , Singh , A.P. , and Agarwal , A.K. Effect of Fuel Injection Parameters on Combustion Stability and Emissions of a Mineral Diesel Fueled Partially Premixed Charge Compression Ignition (PCCI) Engine Applied Energy 190 658 669 2017
- Mingfa , Y. , Hu , W. , and Zunqing , Z. Experimental Study of Multiple Injections and Coupling Effects of Multi-Injection and EGR in a HD Diesel Engine SAE Technical Paper 2009-01-2807 2009 https://doi.org/10.4271/2009-01-2807
- Mohammad , R. , Herfatmanesh , M.R. , and Lu , P. Experimental Investigation into the Effects of Two-Stage Injection on Fuel Injection Quantity, Combustion and Emissions in a High-Speed Optical Common Rail Diesel Engine Fuel 109 137 147 2013
- Mobasheri , R. , Peng , Z.J. , and Mirsalim , S.M. Analysis the Effect of Advanced Injection Strategies on Engine Performance and Pollutant Emissions in a Heavy-Duty DI-Diesel Engine by CFD Modeling International Journal of Heat and Fluid Flow 33 59 69 2012
- Kanda , T. , Hakozaki , T. , Uchimoto , T. et al. PCCI Operation with Fuel Injection Timing Set Close to TDC SAE Technical Paper 2006-01-0920 2006 https://doi.org/10.4271/2006-01-0920
- Park , Y. and Bae , C. Influence of EGR and Pilot Injection on PCCI Combustion in a Single-Cylinder Diesel Engine SAE Technical Paper 2011-01-1823 2011 https://doi.org/10.4271/2011-01-1823
- Wang , C. , Wang , T. , Sun , K. et al. Effects of EGR and Injection Strategies on the Performance and Emissions of a Two-Stroke Marine Diesel Engine SAE Technical Paper 2017-01-2249 2017 https://doi.org/10.4271/2017-01-2249
- Tanner , F. , Brunner , M. , and Weisser , G. A Computational Investigation of Water Injection Strategies for Nitric Oxide Reduction in Large-Bore DI Diesel Engines SAE Technical Paper 2001-01-1069 2001 https://doi.org/10.4271/2001-01-1069
- Tauzia , X. , Maiboom , A. , and Shah , S.R. Experimental Study of Inlet Manifold Water Injection on Combustion and Emissions of an Automotive Direct Injection Diesel Engine Energy 35 3628 3639 2010
- Nishijima , Y. , Asaumi , Y. , and Aoyagi , Y. Impingement Spray System with Direct Water Injection for Premixed Lean Diesel Combustion Control SAE Technical Paper 2002-01-0109 2002 https://doi.org/10.4271/2002-01-0109
- Rahai , H. , Shamloo , E. , and Bonifacio , J. Investigation of the Effect of a Humid Air System on Diesel NOx and PM Emissions of a Small Diesel Engine SAE Technical Paper 2011-01-0692 2011 https://doi.org/10.4271/2011-01-0692
- Andreadis , P. , Chryssakis , C. , and Kaiktsis , L. Optimization of Injection Characteristics in a Large Marine Diesel Engine Using Evolutionary Algorithms SAE Technical Paper 2009-01-1448 2009 https://doi.org/10.4271/2009-01-1448
- Jia , M. , Xie , M.Z. , and Wang , T.Y. The Effect of Injection Timing and Intake Valve Close Timing on Performance and Emissions of Diesel PCCI Engine with a Full Engine Cycle CFD Simulation Applied Energy 88 2967 2975 2011
- He , S. , Du , B.G. , Feng , L.Y. et al. A Numerical Study on Combustion and Emission Characteristics of a Medium-Speed Diesel Engine Using In-Cylinder Cleaning Technologies Energies 8 5 4118 4137 2015
- Chryssakis , C. , Kaiktsis , L. , and Frangopoulos , A. Computational Investigation of In-Cylinder NOx Emissions Reduction in a Large Marine Diesel Engine Using Water Addition Strategies SAE Technical Paper 2010-01-1257 2010 https://doi.org/10.4271/2010-01-1257
- Liu , A. , Mather , D. , and Reitz , R. Modeling the Effects of Drop Drag and Breakup on Fuel Sprays SAE Technical Paper 930072 1993 https://doi.org/10.4271/930072
- Colin , O. and Benkenida , A. The 3-Zones Extended Coherent Flame Model (Ecfm3z) for Computing Premixed/Diffusion Combustion Oil & Gas Science and Technology 59 6 593 609 2004
- Hanjalic´ , K. , Popovac , M. , and Hadziabdic , M. A Robust Near-Wall Elliptic-Relaxation Eddy-Viscosity Turbulence Model for CFD International Journal of Heat and Fluid Flow 25 6 1047 1051 2004
- Dukowicz , J.K. A Particle-Fluid Numerical Model for Liquid Sprays Journal of Computational Physics 35 2 229 253 1980
- Sun , Y. and Reitz , R. Modeling Diesel Engine NO x and Soot Reduction with Optimized Two-Stage Combustion SAE Technical Paper 2006-01-0027 2006 https://doi.org/10.4271/2006-01-0027
- Priesching , P. , Ramusch , G. , Ruetz , J. et al. 3D-CFD Modeling of Conventional and Alternative Diesel Combustion and Pollutant Formation - A Validation Study SAE Technical Paper 2007-01-1907 2007 https://doi.org/10.4271/2007-01-1907
- Shah , S. , Maiboom , A. , Tauzia , X. , and Hétet , J. Experimental Study of Inlet Manifold Water Injection on a Common Rail HSDI Automobile Diesel Engine, Compared to EGR with Respect to PM and Nox Emissions and Specific Consumption SAE Technical Paper 2009-01-1439 2009 https://doi.org/10.4271/2009-01-1439
- Ladommatos , N. , Abdelhalim , S. , Zhao , H. , and Hu , Z. The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Disesel Engine Emissions - Part 4: Effects of Carbon Dioxide and Water Vapour SAE Technical Paper 971660 1997 https://doi.org/10.4271/971660