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Numerical Investigation on Effects of Combustion Chamber Structure and Intake Air Humidification on Combustion and Emission Characteristics of Marine Diesel Engine
Technical Paper
2017-01-2254
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In order to improve the combustion and emissions for high-speed marine diesel engines, numerical investigations on effects of different combustion chamber structures combined with intake air humidification have to be conducted. The study uses AVL Fire code to establish three-dimensional combustion model and simulate the in-cylinder flow, air-fuel mixing and combustion process with the flow dynamics metrics such as swirl number and uniformity index, analyze the interactional effects of combustion chamber structures and intake air humidification against the experimental data for a part load operation at 1350 r/min, find the optimized way to improve engine performance as well as decrease the NOx and soot emissions. The novelty is that this study is to combine different air humidifying rates with different combustion chamber structures including the re-entrant chamber, the straight chamber and the open chamber. Results show that the chamber diameter, bowl depth, intake air humidification can greatly influence in-cylinder flow, the re-entrant chamber makes a higher power output at the price of a smaller increase of NOx emissions, meanwhile the chamber combined with suitable humidifying rates can reduce the in-cylinder peak pressure and temperature, decrease the NOx emissions and cause a little more soot emissions. The straight chamber has lower emissions at the same output power level compared with the prototype, the open chamber is found to have a lower output power.
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Huang, S., Zhao, C., and Zhu, Y., "Numerical Investigation on Effects of Combustion Chamber Structure and Intake Air Humidification on Combustion and Emission Characteristics of Marine Diesel Engine," SAE Technical Paper 2017-01-2254, 2017, https://doi.org/10.4271/2017-01-2254.Data Sets - Support Documents
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References
- Ishida , M. , Ueki , H. , and Sakaguchi , D. Prediction of NOx Reduction Rate Due to Port Water Injection in a DI Diesel Engine SAE Technical Paper 972961 1997 10.4271/972961
- He S , Du B , Feng L et al. A numerical study on combustion and emission characteristics of a medium-speed diesel engine using, in-cylinder cleaning technologies Energies 2015
- Park , H. , Ghal , S. , Park , H. , Choi , S. et al. A Study on NOx Reduction of Marine 4-Stroke Diesel Engine Using Charge Air Humidification SAE Technical Paper 2011-24-0172 2011 10.4271/2011-24-0172
- Su L , Li X , Zhang Z et al. Numerical analysis on the combustion and emission characteristics of forced swirl combustion system for DI diesel engines Energy Conversion & Management 86 10 20 27 2014
- Arunachalam , P. , Tuner , M. , Tunestal , P. , Johansson , B. et al. System Simulations to Evaluate the Potential Efficiency of Humid Air Motors SAE Technical Paper 2013-01-2646 2013 10.4271/2013-01-2646
- AVL Fire Diesel particulate filter model 2013
- Rakopoulos C D , Kosmadakis G M , Pariotis E G. Investigation of piston bowl geometry and speed effects in a motored HSDI diesel engine using a CFD against a quasi-dimensional model Energy Conversion & Management 51 3 470 484 2010
- Tauzia X , Maiboom A , Shah S R. Experimental study of inlet manifold water injection on combustion and emissions of an automotive direct injection diesel engine Energy 35 9 3628 3639 2010
- 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 10.4271/2009-01-1439
- Li J , Yang W M , An H et al Effects of piston bowl geometry on combustion and emission characteristics of biodiesel fueled diesel engines Fuel 120 1 66 73 2013
- Jafarmadar S , Taghavifar H , Taghavifar H et al. Numerical assessment of flow dynamics for various DI diesel engine designs considering swirl number and uniformity index Energy Conversion & Management 110 347 355 2016
- Mobasheri , R. and Peng , Z. The Development and Application of Homogeneity Factor on DI Diesel Engine Combustion and Emissions SAE Technical Paper 2013-01-0880 2013 10.4271/2013-01-0880
- 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 10.4271/971660
- Kökkülünk G , Parlak A , Ayhan V et al. Theoretical and experimental investigation of steam injected diesel engine with EGR Energy 74 331 339 2014
- Gonca G , Sahin B , Ust Y et al. Comparison of Steam Injected Diesel Engine and Miller Cycled Diesel Engine by Using Two Zone Combustion Model Journal of the Energy Institute 88 1 43 52 2015
- Roberts , C. , Naegeli , D. , and Chadwell , C. The Effect of Water on Soot Formation Chemistry SAE Technical Paper 2005-01-3850 2005 10.4271/2005-01-3850
- Lif A. , Holmberg K. Water-in-diesel emulsions and related systems Colloid and Interface Science 231 1299 2006
- Bhaskar T , Juan C , Aaron J Water Addition in Diesel Engine Intake for NOx Reduction: Comparison of Modeling and Experiments presented at Fall Technical Conference of the ASME Internal Combustion Engine Division 2003 USA September 7-10,2003
- Maiboom , A. Tauzia , X. Experimental Study of Various Effects of Exhaust Gas Recirculation on Combustion and Emissions of an Automotive HSDI Diesel Engine Using an LP EGR Loop Energy 33 22 34 2008