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Effects of Flame Lift-Off and Flame Temperature on Soot Formation in Oxygenated Fuel Sprays
Technical Paper
2003-01-0073
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Considering the bell-shaped temperature dependence of soot particle formation, the control of flame temperature has a possibility to drastically suppress of soot formation. Furthermore, oxygenated fuels are very effective on soot reduction, and the use of these kinds of fuels has a potentiality for smokeless diesel combustion. In this paper, the effects of flame lift-off and flame temperature on soot formation in oxygenated fuel sprays were experimentally investigated using a constant volume combustion vessel which simulated diesel engine conditions. The diffusion flame lift-off length was measured in order to estimate the amount of the oxygen entrained upstream of the flame lift-off length in the fuel jet. This was determined from time-averaged OH chemiluminescence imaging technique. Also, the flame temperature and soot concentration were simultaneously evaluated by means of two-color method. Measurements were obtained at various ambient gas temperatures, oxygen concentrations and injection pressure drops across nozzle orifice. The experimental results showed that the soot formation inside a burning diesel jet has the significant relation with the flame lift-off length and flame temperature. The oxygenated fuels have a large potentiality for smokeless diesel combustion based on the control of the flame temperature as well as that of the mixture formation process.
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Citation
Ito, T., Kitamura, T., Ueda, M., Matsumoto, T. et al., "Effects of Flame Lift-Off and Flame Temperature on Soot Formation in Oxygenated Fuel Sprays," SAE Technical Paper 2003-01-0073, 2003, https://doi.org/10.4271/2003-01-0073.Also In
Ci Engine Combustion Processes & Performance With Alternative Fuels
Number: SP-1737; Published: 2003-03-03
Number: SP-1737; Published: 2003-03-03
References
- Ryan, T. W. Callahan T. J. “Homogeneous charge compression ignition of diesel fuel” SAE paper 961160 1996
- Kamimoto, T. Bae, M. H. “High temperature for the reduction of particulate in diesel engines” SAE Paper 880423 1988
- Akihama, K. Takatori, Y. Inagaki, K. Sasaki, S. Dean, A. M. “Mechanism of the smokeless rich diesel combustion by reducing temperature” SAE Paper 2001-01-0655 2001
- Miyamoto, N. Ogawa, H. Nabi, M. M. “Approaches to extremely low emissions and efficient diesel combustion with oxygenated fuels” Int. j. Engine Research 2000 1 1 71 85
- Siebers, D. Higgins, B. “Flame Lift-Off on Direct-Injection Diesel Sprays Under Quiescent Conditions” SAE Paper 2001-01-0530 2001
- Siebers, D., L. “Ignition Delay Characteristics of Alternative Diesel Fuels: Implications on Cetane Number” SAE Paper 852102
- Oren, D. C. Wahiduzzaman, S. Ferguson, C. R. “Diesel Combustion Bomb: Proof of Concept” SAE Paper 841358 1984
- Higgins, B. Siebers, D. “Measurement of the Flame Lift-Off Location on DI Diesel Sprays Using OH chemiluminescence” SAE Paper 2001-01-0918 2001
- Naber, J. D. Siebers, D. L. “Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays” SAE Paper 960034 1996
- Siebers, D. L. “Scaling Liquid-Phase Fuel Penetration in Diesel Sprays Based on Mixing-Limited Vaporization” SAE 1999-01-0528 1999
- Siebers, D. Higgins, B. Pickett, L. “Flame Lift Off on Direct-Injection Diesel Fuel Jets: Oxygen Concentration Effects” SAE Paper 2002-01-0890 2002
- Hottel, H. G. Broughton, F. P. Ind. And Engng. Chem. 166 1932
- Kellerer, H. Koch, R. Wittig, S. “Measurements of the growth and coagulation of soot particles in a high pressure shock tube” Combustion and Flame 120 188 199 2000
- Bauerle, ST. Karasevich, Y. Slavov, ST. Tanke, D. Tappe, M. Thienel, TH. Wagner, H. GG. “Soot Formation at Elevated Pressures and Carbon Concentrations in Hydrocarbon Pyrolysis” Twenty-Fifth Symposium (International) on Combustion 627 634 1994
- Miyamoto, N. Ogawa, H. Nurun, N. M. Obata, K. Arima, T. “Smokeless, Low NOx, High Thermal Efficiency, and Low Noise Diesel Combustion with Oxygenated Agents as Main Fuel” SAE Paper 980506 1998
- Kitamura, T. Ito, T. Senda, J. Fujimoto, H. “Mechanism of smokeless diesel combustion with oxygenated fuels based on the dependence of equivalence ratio and temperature on soot particle formation” Int. j. Engine Research