This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulation Investigation of Working Process and Emissions on GDI Engine Fueled with Hydrous Ethanol Gasoline Blends
Technical Paper
2019-01-0219
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Compared with ordinary gasoline, using ethanol gasoline blends as fuel of Internal Combustion Engine is beneficial for the performance of power, economy and emission of engine. However, the fuel ethanol blended in ethanol gasoline blends currently is usually anhydrous ethanol, which requires dewatering implementer in production process, and the cost is high. Therefore, the production cost can be significantly reduced by replacement of anhydrous ethanol with hydrous ethanol while exerting the advantage of ethanol gasoline blends. In this study, computation fluid dynamics (CFD) software CONVERGE is employed to establish a simulation model of an actual gasoline direct injection (GDI) engine, and investigate the effect of burning hydrous ethanol gasoline blends and different injection strategy on combustion process and emission, and the validity of the model was validated by experiments. The numerical results show that compared with ordinary gasoline burning hydrous ethanol gasoline blends can accelerate combustion, expand the high temperature region during combustion, and reduce the formation of soot. When changing the start of injection (SOI) timing, due to factors such as wall impingement, fuel evaporation of and in-cylinder flow, the case with injection at -270 CAD has the best uniformity of mixture gas has, the fastest rate of heat release (RoHR), the highest in-cylinder pressure peak and optimal timing of pressure peak. Double injection strategy can improve the fuel evaporation rate, optimize the distribution of the mixture gas, and reduce NOx emissions. The optimal secondary injection timing is -130 CAD with a ratio of 25%. The lean stratified combustion mode is also explored, and has the capability to reduce the combustion pressure and temperature. It also has a latent capacity of decreasing the formation of NOx and Soot.
Recommended Content
Authors
Topic
Citation
Liao, Y., Shi, X., Ni, J., and Kang, Y., "Simulation Investigation of Working Process and Emissions on GDI Engine Fueled with Hydrous Ethanol Gasoline Blends," SAE Technical Paper 2019-01-0219, 2019, https://doi.org/10.4271/2019-01-0219.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 |
Also In
References
- Poulopoulos , S.G. , Samaras , D.P. , and Philipopoulos , C.J. Regulated and Unregulated Emissions from an Internal Combustion Engine Operating on Ethanol-Containing Fuels Atmospheric Environment 35 26 4399 4406 2001 10.1016/S1352-2310(01)00248-5
- Al , H.M. Effect of Ethanol-Unleaded Gasoline Blends on Engine Performance and Exhaust Emission Energy Conversion and Management 44 9 1547 1561 2003 10.1016/S0196-8904(02)00166-8
- Yüksel , F. and Yüksel , B. The Use of Ethanol-Gasoline Blend as a Fuel in an SI Engine Renewable Energy 29 7 1181 1191 2004 10.1016/j.renene.2003.11.012
- Costa , R.C. and Sodré , J.R. Hydrous Ethanol vs. Gasoline-Ethanol Blend: Engine Performance and emissions Fuel 89 2 287 293 2010 10.1016/j.fuel.2009.06.017
- Alleman , T.L. , McCormick , R.L. , and Yanowitz , J. Properties of Ethanol Fuel Blends Made with Natural Gasoline Energy & Fuels 29 8 5095 5102 2015 10.1021/acs.energyfuels.5b00818
- de Melo , T.C.C. , Machadoa , G.B. , and Belchior , C.R.P. Hydrous Ethanol-Gasoline Blends - Combustion and Emission Investigations on a Flex-Fuel Engine Fuel 97 796 804 2012 10.1016/j.fuel.2012.03.018
- Li , J. , You , C. , Lyu , Z. et al. Fuel-Based Ethanol Dehydration Process Directly Extracted by Gasoline Additive Separation and Purification Technology 149 9 15 2015 10.1016/j.seppur.2015.05.012
- Shaohua , L. , Lizhong , S. , Ninaye , Y. et al. Research on Effects of E10 Hydrous Ethanol Gasoline Blend on Performance and Emissions of Gasoline Engine Chinese Internal Combustion Engine Engineering 33 5 46 51 2012 10.13949/j.cnki.nrjgc.2012.05.014
- Qun , W. , Wang , T. , Zhijin , Z. et al. Particle Emission Characteristics of Alcohol-Gasoline Blends in Combination of EGR Acta Scientiae Circumstantiae 35 6 1690 1696 2015 10.13671/j.hjkxxb.2014.0892
- Klippenstein , S.J. , Harding , L.B. , Davis , M.J. et al. Uncertainty Driven Theoretical Kinetics Studies for CH3OH ignition: HO2 +CH3OH and O2 +CH3OH Proceedings of the Combustion Institute 33 1 351 357 2011 10.1016/j.proci.2010.05.066
- Mittal , G. , Burke , S.M. , Davies , V.A. et al. Autoignition of Ethanol in a Rapid Compression Machine Combustion & Flame 161 5 1164 1171 2014 10.1016/j.combustflame.2013.11.005
- Yaodong , L. 2013
- Liu , Y. , Jia , M. , Xie , M. et al. Improvement on a Skeletal Chemical Kinetic Model of Iso-Octane for Internal Combustion Engine by Using a Practical Methodology Fuel 103 1 884 891 2013 10.1016/j.fuel.2012.07.046
- Liu , Y. , Jia , M. , Xie , M. et al. Enhancement on a Skeletal Kinetic Model for Primary Reference Fuel Oxidation by Using a Semidecoupling Methodology Energy & Fuels 26 12 7069 7083 2012 10.1021/ef301242b
- Zhan , R. , Eakle , S.T. , and Weber , P. Simultaneous Reduction of PM, HC, CO and NOx Emissions from a GDI Engine SAE Technical Paper 2010-01-0365 2010 10.4271/2010-01-0365
- Golovitchev , V.I. , Atarashiya , K. , Tanaka , K. et al. Towards Universal EDC-Based Combustion Model for Compression Ignited Engine Simulations SAE Technical Paper 2003-01-1849 2003 10.4271/2003-01-1849
- Yanzhao , A. 2016
- Zheng , Z. , Tian , X. , and Zhang , X. Effects of Split Injection Proportion and the Second Injection Time on the Mixture Formation in a GDI Engine under Catalyst Heating Mode Using Stratified Charge Strategy Applied Thermal Engineering 84 14 237 245 2015 10.1016/j.applthermaleng.2015.03.041
- Banerjee , R. and Kumar , S. Numerical Investigation of Stratified Air/Fuel Preparation in a GDI Engine Applied Thermal Engineering 104 414 428 2016 10.1016/j.applthermaleng.2016.05.050