This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Lube Oil Film Thickness on Spray/Wall Impingement with Diesel, M20 and E20 Fuels
Technical Paper
2017-01-0847
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Spray impacting on a lube oil film with a finite thickness is a common phenomenon in IC engines and plays a critical role in the fuel-air mixture process and combustion. With the use of early injection strategy to achieve HCCI combustion mode in diesel engines, this phenomenon becomes more and more prominent. In addition, oxygenated fuels such as methanol and ethanol are regarded as alternative fuel and additives to improve the overall performance of HCCI engine. Therefore, a better understanding about the role of lube oil film thickness in methanol-diesel and ethanol-diesel blended fuels spray/wall impingement is helpful for accumulating experimental data to establish a more accurate spray/wall impingement model and optimize the combustion in HCCI engines. In this paper, the effect of lube oil film thickness on the characteristics of spray/wall impingement of different fuels are investigated in a constant volume bomb test system. Fuels include diesel, methanol (20v%)-diesel (80v%) blended fuels(M20),ethanol(20v%)-diesel(80v%) blended fuels(E20). With the novel measurement methods, the information about film thickness and adhered fuel ratio was obtained. In general, the results demonstrate that the initial lube oil film influence the wall film distribution after impingement. With the increase of initial lube oil film thickness, the diffusion and merge interaction between spray droplets and oil film become obvious which intensify the phenomenon of the dilution of oil film. But due to the low-density and high-volatile property of M20 and E20 fuels compared to diesel, the level of diffusion and merge interaction between alcohol-diesel blended fuels spray and lube oil film is lower than that of diesel which means using alcohol-diesel blended fuels can mitigate the problem of lube oil dilution and local rich mixture during spray/wall impingement process.
Recommended Content
Authors
Topic
Citation
Ge, M., Liang, X., Yu, H., Wang, Y. et al., "Effect of Lube Oil Film Thickness on Spray/Wall Impingement with Diesel, M20 and E20 Fuels," SAE Technical Paper 2017-01-0847, 2017, https://doi.org/10.4271/2017-01-0847.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- Yao , M. , Zheng Z. , and Liu H. Progress and recent trends in homogeneous charge compression ignition (HCCI) engines Progress in Energy and Combustion Science 2009 35 5 398 437 10.1016/j.pecs.2009.05.001
- Naber , J. and Reitz , R. Modeling Engine Spray/Wall Impingement SAE Technical Paper 880107 1988 10.4271/880107
- Watkins A.P. , Wang D.M. A new model for diesel spray impaction on walls and comparison with experiment COMODIA 90 Proceedings of International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engines 1990 243 248
- Park , K. and Watkins A.P. Comparison of wall spray impaction models with experimental data on drop velocities and sizes International Journal of Heat and Fluid Flow 1996 17 4 424 438 10.1016/0142-727X(96)00049-5
- Mundo , C. , Sommerfeld M. , and Tropea C. Experimental studies of the deposition and splashing of small liquid droplets impinging on a flat surface 1994
- Bai , C.X. , Rusche H. , and Gosman A.D. Modeling of gasoline spray impingement Atomization & Sprays 2002 12 1-3 1 28 10.1615/AtomizSpr.v12.i123.10
- Lee , S.H. and Hong S.R. Development of a new spray/wall interaction model International Journal of Multiphase Flow 2000 26 7 1209 1234 10.1016/S0301-9322(99)00080-4
- Kalantari , D. and Tropea C. Spray impact onto flat and rigid walls: Empirical characterization and modelling International Journal of Multiphase Flow 2007 33 5 525 544 10.1016/j.ijmultiphaseflow.2006.09.008
- Saito , A. ; Kawamura , K. ; Watanabe , S. ; Takahashi , T. ; Tuzuki , N. Analysis of impinging spray characteristics under high-pressure fuel injection (1st report, measurements of impinging spray characteristics) Trans. Jpn. Soc. Mech. Eng. Part B 1993 59 3290 3295
- Akop , M.Z. ; Zama , Y. ; Furuhata , T. ; Arai , M. Characteristics of adhesion of diesel fuel on impingement disk wall. Part 1: Effect of Impingement area and inclination angle of disk At. Sprays 2013 23 725 744 10.1615/AtomizSpr.2013008113
- Akop , M.Z. ; Zama , Y. ; Furuhata , T. ; Arai , M. Characteristics of adhesion of diesel fuel on impingement disk wall. Part 2: Droplet Weber number and adhered fuel mass At. Sprays 2014 24 651 671 10.1615/AtomizSpr.2014008445
- Brown , D.R. A study of the behaviour of a thin sheet of moving liquid Journal of Fluid Mechanics 1961 10 2 297 305 10.1017/S002211206100024X
- Wang A. B. , Chen C. C. , and Hwang W. C. Very thin plane film generator and visualization of droplet impinging on the film’’ (in Chinese) Proceedings of the 16th National Conference of Mechanical Engineering Hsin-Chu, Taiwan 3-4 December 1999 190
- Wang AB , Chen CC. Splashing impact of a single drop onto very thin liquid films Physics of Fluids 2000 12 12 2155 8 10.1063/1.1287511
- Yu , H. et al. Experimental investigation on wall film ratio of diesel, butanol/diesel, DME/diesel and gasoline/diesel blended fuels during the spray wall impingement process Fuel Processing Technology 2017 156 9 18 10.1016/j.fuproc.2016.09.029
- Yu , H. et al. Experimental investigation on spray-wall impingement characteristics of n-butanol/diesel blended fuels Fuel 2016 182 248 258 10.1016/j.fuel.2016.05.115
- Infralytic GmbH Oil-Thickness Sensor NG Operating Manual; Version 1.6.3 Infralytic GmbH Marburg, Germany 2011
- Yu , H. et al. Experimental Investigation on Wall Film Distribution of Dimethyl Ether/Diesel Blended Fuels Formed during Spray Wall Impingement Energies 2016 9 11 10.3390/en9110949