This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Hole Diameter and Injection Pressure on Fuel Spray and Its Evaporation Characteristics of Multi-Hole Nozzle for Diesel Engine
Technical Paper
2017-01-2305
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The performance of a diesel engine largely depends on the spray behavior and mixture formation. Nozzle configurations and operating conditions are important factors that influence spray development. Using numerical and experimental methods, this study focused on the spray development of multi-hole nozzles under non-evaporating and evaporating conditions to compare the influence of nozzle hole diameter and injection pressure on spray characteristics. High-speed video observation was employed to study the properties of spray development under the non-evaporating condition, while the Laser Absorption Scattering technique was used in the observation and quantitative analysis of evaporating spray characteristics in the evaporating condition. In addition, computational fluid dynamics study results published previously [1] were correlated with the current experimental results to provide more detailed explanations about the mechanism of the characteristics of spray behavior. As for the effects of hole diameter, the evaporation ratio increased when the nozzle with smaller hole diameter was used at the initial injection phase. However, especially after injection, the evaporation ratio increased with increasing nozzle hole diameter because of the shorter injection duration. With regard to the effect of injection pressure, high injection pressure accelerated the internal flow that promotes the high cavitation level inside the nozzle. High injection pressure also provides high momentum, which prolongs the spray tip penetration. As a result, the evaporation ratio increases with the increase in injection pressure. The combined effects of nozzle hole diameter and injection pressure under similar fuel injection rates were investigated in the last section. The results show the distinct features for each condition although they have similar injection rate curves.
Recommended Content
Authors
Topic
Citation
Yamauchi, J., Dong, P., Nishida, K., and Ogata, Y., "Effects of Hole Diameter and Injection Pressure on Fuel Spray and Its Evaporation Characteristics of Multi-Hole Nozzle for Diesel Engine," SAE Technical Paper 2017-01-2305, 2017, https://doi.org/10.4271/2017-01-2305.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 |
Also In
References
- Dong , P. , Yamauchi , J. , Nishida , K. , and Ogata , Y. Hole Geometrical Effect on Internal Flow, Fuel Atomization and Spray Evaporation of Multi-Hole Nozzle for Diesel Engine SAE Technical Paper 2017-01-0860 2017 10.4271/2017-01-0860
- Desantes , J. , Payri , R. , Salvador , F. , and Gimeno , J. Measurements of Spray Momentum for the Study of Cavitation in Diesel Injection Nozzles SAE Technical Paper 2003-01-0703 2003 10.4271/2003-01-0703
- Payri R. , García , J.M. Salvador F.J. , Gimeno J. Using spray momentum flux measurements to understand the influence of diesel nozzle geometry on spray characteristics Fuel 84 2005 551 561
- Arcoumanis , C. , Flora , H. , Gavaises , M. , Kampanis , N. et al. Investigation of Cavitation in a Vertical Multi-Hole Injector SAE Technical Paper 1999-01-0524 1999 10.4271/1999-01-0524
- Blessing , M. , König , G. , Krüger , C. , Michels , U. et al. Analysis of Flow and Cavitation Phenomena in Diesel Injection Nozzles and Its Effects on Spray and Mixture Formation SAE Technical Paper 2003-01-1358 2003 10.4271/2003-01-1358
- López J. Javier , Salvador F.J , de la Garza Oscar A. , Arrègle Jean A comprehensive study in the effect of cavitation on injection velocity Energy Conversion and Injection Management 64 2012 415 423
- Nouri JM , Mackenzie S , Gaskell C , Dhunput A Effect of Viscosity, Temperature and Nozzle Length-to-Diameter Ratio on Internal Flow and Cavitation in a Multi-Hole Injector Book of Fuel Systems for IC Engine 265 278 2012
- Battistoni , M. , Grimaldi , C. , and Mariani , F. Coupled Simulation of Nozzle Flow and Spray Formation Using Diesel and Biodiesel for CI Engine Applications SAE Technical Paper 2012-01-1267 2012 10.4271/2012-01-1267
- Pickett LM , Siebers DL Orifice Diameter Effects on Diesel Fuel Jet Flame Structure Journal of Engineering for Gas Turbines and Power 127 1 187 196 2005
- Ding Chuan , He Yongling Analysis of Transient Flow and Cavitation within Different Nozzle Geometry in High-Pressure Common Rail Injector SAE 2011-01-1842
- Molina S. , Salvador F.J. , Carreres M. , Jaramillo D. A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles Energy Conversion and Management 79 2014 114 127
- Prasetya R. , Mashida M. , Yamada Y. , Sou A. Effect of Nozzle Inlet Roundness and Nozzle Length on Cavitation and Liquid Jet ICLASS 2015, 13th Triennial International Conference on Liquid Atomization and Spray Systems Tainan, Taiwan August 23-27, 2015
- Zhixia He , Zhuang Shao , Qian Wang , Wenjun Zhong , Xicheng Tao Experimental study of cavitation flow inside vertical multihole nozzles with different length-diameter ratios using diesel and biodiesel Experimental Thermal and Fluid Science 60 2015 252 262
- Fuying Xue , Fuqiang Luo , Huifeng Cui , Adams Moro , Liying Zhou Numerical analyses of transient flow characteristics within each nozzle hole of asymmetric diesel injector International Journal of Heat and Mass Transfer 104 2017 18 27
- Salvador F.J. , Carreres M. , Jaramillo D. , Martínez-López J. Comparison of microsac and VCO diesel injector nozzles in terms of internal nozzle flow characteristics Energy Conversion and Management 103 2015 284 229
- Payri F. , Bermúdez V. , Payri R. , Salvador F.J. The influence of cavitation on the internal flow and the pray characteristics in diesel injection nozzles Fuel 83 2004 419 431
- Guo G.M. , He Z.X. , Wang Q. , Shao Z. , Zhang Z.Y. Visual Experiment of Transient Cavitating Flow in the Rail-Size Diesel Injector Nozzle ICLASS 2015, 13th Triennial International Conference on Liquid Atomization and Spray Systems Tainan, Taiwan August 23-27, 2015
- Tao X.C. , He Z.X. , Zhang L. , Guo G.M. , Zhang Z.Y. Experimental Investigation of the Effect of Nozzle Hole Shape on Internal Flow and Spray Characteristics ICLASS 2015, 13th Triennial International Conference on Liquid Atomization and Spray Systems Tainan, Taiwan August 23-27, 2015
- Guangjun Jiang , Yusheng Zhang , Hua Wen , Gan Xiao Study of the generated density of cavitation inside diesel nozzle using different fuels and nozzles Energy Conversion and Management 103 2015 208 217
- Tao Qiu , Xin Song , Yan Lei , Hefei Dai , Chunlei Cao , Hui Xu , Xiang Feng Effect of back pressure on nozzle inner flow in fuel injector Fuel 173 2016 79089
- Tao Qiu , Xin Song , Yan Lei , Xinghua Liu , Xiaodong An , Mingchia Lai Influence of inlet pressure on cavitation flow in diesel nozzle Applied Thermal Engineering 109 2016 364 372
- Gavaises , M. , Papoulias , D. , Andriotis , A. , Giannadakis , E. et al. Link Between Cavitation Development and Erosion Damage in Diesel Injector Nozzles SAE Technical Paper 2007-01-0246 2007 10.4271/2007-01-0246
- Bower , G. and Foster , D. A Comparison of the Bosch and Zuech Rate of Injection Meters SAE Technical Paper 910724 1991 10.4271/910724
- Zhang , Y. Y. A Study on Mixture Formation in Diesel Sprays with Split Injection Strategy Dissertation University of Hiroshima 2001
- Itamochi Masayuki , Matsuo Takeru , Li Kuichun , Nishida Keiya , Ogata Yoichi , Shimo Daisuke , Namba Makoto , Kim Sang-kyu , Kanzaki Jun Laser Absorption Scattering Technique Using Tracer-Doped Fuel (Tracer LAS) for Quantitative Measurement of Mixture Concentration Distribution in Diesel Spray ICLASS 2015, 13th Triennial International Conference on Liquid Atomization and Spray Systems Tainan, Taiwan August 23-27, 2015
- MATSUO Takeru , LI Kuichun , ITAMOCHI Masayuki , NISHIDA Keiya , OGATA Yoichi , SHI Baolu , SHIMO Daisuke , NAMBA Makoto , KIM Sang-kyu , KANZAKI Jun Tracer LAS Technique for Quantitative Mixture Concentration Measurement of Evaporation Diesel Spray ILASS-Asia 2014, 17th Annual Conference on Liquid Atomization and Spray System-Asia Shanghai, China
- Naber , J. and Siebers , D. Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays SAE Technical Paper 960034 1996 10.4271/960034