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Theoretical Study on Similarity of Diesel Combustion
Technical Paper
2018-01-0235
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Based on the similarity theory and conservation equations, some of the important dimensionless numbers in diesel combustion are deduced and discussed. Existence of similarity is theoretically proved in diffusion (or mixing-controlled) combustion and premixed combustion as well as in spray mixture formation processes in different size diesel engines. With the prerequisite of geometric similarity, scaling rules for some parameters including engine speed, injection pressure and injection duration are established to realize the similarity between large-bore and small-bore diesel engines. To verify the similarity theories, the computational fluid dynamics (CFD) simulation are conducted, and three scaling rules, which keep the engine speed, injection pressure and lift-off length constant, respectively, are compared under the conditions of the light load (0.3 MPa IMEP) and high load (1.55 MPa IMEP) operations. The theoretical analysis and simulation results demonstrate that the scaling rule that keeps the engine speed constant is more preferable under the operating conditions where the premixed combustion dominates the heat release processes, while the similarity rule keeping the injection pressure constant is superior than the others when the diffusion (or mixing-controlled) combustion dominates the heat release processes. Nevertheless, the above three rules exhibit different degrees of similarity in terms of NOx and soot emissions, and the discrepancy is discussed.
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Zhou, X., Li, T., Lai, Z., and Wang, B., "Theoretical Study on Similarity of Diesel Combustion," SAE Technical Paper 2018-01-0235, 2018, https://doi.org/10.4271/2018-01-0235.Data Sets - Support Documents
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References
- Borovikov , V. and Vanyagin , I. 1995 20 21
- Chikahisa , T. and Murayama , T. Theory on Combustion Similarity for Different Size Diesel Engines Transactions of the Japan Society of Mechanical Engineers Series B 54 508 3579 3584 1988
- Chikahisa , T. , Kikuta , K. , and Murayama , T. Combustion Similarity for Different Size Diesel Engines: Theoretical Prediction and Experimental Results SAE Technical Paper 920465 1992 10.4271/920465
- Chikahisa , T. and Murayama , T. Theory and Practice of Scale Model Experiments for Predicting Fuel Consumption, Emissions, and Thermal Loads in Large Diesel Engines CIMAC D33 1 19 1995
- Kikuta , K. , Chikahisa , T. , and Hishinuma , Y. Study on Predicting Combustion and NOx Formation in Diesel Engines from Scale Model Experiments Transactions of the Japan Society of Mechanical Engineers Series B 65 629 369 375 1999
- Bergin , M. and Reitz , R. Soot and NOx Emissions Reduction in Diesel Engines via Spin-Spray Combustion Proceedings of the 18th Annual Conference on Liquid Atomization and Spray Systems Irvine May 2005
- Stager , L. and Reitz , R. Assessment of Diesel Engine Size-Scaling Relationships SAE Technical Paper 2007-01-0127 2007 10.4271/2007-01-0127
- Shi , Y. and Reitz , R.D. Study of Diesel Engine Size Scaling Relationships Based on Turbulence and Chemistry Scales SAE Technical Paper 2008-01-0955 2008 10.4271/2008-01-0955
- Staples , L. , Reitz , R. , and Hergart , C. An Experimental Investigation into Diesel Engine Size-Scaling Parameters SAE Int. J. Engines 2 1 1068 1084 2009 10.4271/2009-01-1124
- Lee , C. , Reitz , R. , and Kurtz , E. The Impact of Engine Design Constraints on Diesel Combustion System Size Scaling SAE Technical Paper 2010-01-0180 2010 10.4271/2010-01-0180
- Tess , M. , Lee , C. , and Reitz , R. Diesel Engine Size Scaling at Medium Load without EGR SAE Int. J. Engines 4 1 1993 2009 2011 10.4271/2011-01-1384
- Lee , C. , Reitz , R. , and Kurtz , E. A Numerical Study on Diesel Engine Size-Scaling in Low Temperature Combustion Operation Numerical Heat Transfer, Part A: Applications 58 9 681 701 2010
- Kawaguchi , J. , Hanasaki , M. , Hori , T. , Matsumura , E. et al. Improvement of Hybrid Scheme for WAVE-MTAB Model and LES Analysis of Diesel Spray Using Theory on the Spray Similarity Society of Automotive Engineers of Japan 70 16 1746 1751 2016
- Kawaguchi , J. , Nagano , Y. , Hori , T. , Matsumura , E. et al. Calculation of Diesel Spray and Combustion Using Theory on Spray Similarity Society of Automotive Engineers of Japan 1 17 22 25 2017
- Inagaki , K. , Mizuta , J. , Kawamura , K. , Idota , Y. et al. Theoretical Study on Spray Design for Small-Bore Diesel Engine SAE Technical Paper 2016-01-0740 2016 10.4271/2016-01-0740
- Takada , N. , Hashizume , T. , Tomoda , T. , Inagaki , K. et al. Theoretical Study on Spray Design for Small-Bore Diesel Engine (Second Report) SAE Int. J. Engines 10 3 1110 1118 2017 10.4271/2017-01-0704
- Inagaki , K. , Mizuta , J. , and Hashizume , T. Theoretical Study on Spray Design for Small-Bore-Size Diesel Engines (Fourth Report) Experimental and Theoretical Considerations on Similarity of Heat-Loss for Different-Bore Engines Society of Automotive Engineers of Japan 47 6 1297 1303 2016
- Pomraning , E. , Richards , K. , and Senecal , P.K. Modeling Turbulent Combustion Using a RANS Model, Detailed Chemistry, and Adaptive Mesh Refinement SAE Technical Paper 2014-01-1116 2014 10.4271/2014-01-1116
- Han , Z. and Reitz , R. Turbulence Modeling of Internal Combustion Engines Using RNG k-ε Models Combustion Science and Technology 106 4-6 267 295 1995
- Hauke , G. An Introduction to Fluid Mechanics and Transport Phenomena Dordrecht Springer Netherlands 2008 170 180
- Frank-Kamenetskii , D. Diffusion and Heat Exchange in Chemical Kinetics Princeton Princeton University Press 2015 3 10
- Hiroyasu , H. , Kadota , T. , and Arai , M. Supplementary Comments: Fuel Spray Characterization in Diesel Engines Combustion Modeling in Reciprocating Engines 369 1980 10.1007/978-1-4899-5298-1
- Pickett , L. , Siebers , D. , and Idicheria , C. Relationship Between Ignition Processes and the Lift-Off Length of Diesel Fuel Jets SAE Technical Paper 2005-01-3843 2005 10.4271/2005-01-3843
- Eilts , P. Similarity Considerations on Wall Heat Losses in Internal Combustion Engines Proceedings of the Institution of Mechanical Engineers Part A Journal of Power & Energy 205 21 139 142 1991
- Wakuri , Y. , Fujii , M. , and Amitani , T. Studies on the Penetration of Fuel Spray in a Diesel Engine Bulletin of JSME 3 9 123 130 1960
- Siebers , D. Scaling Liquid-Phase Fuel Penetration in Diesel Sprays Based on Mixing-Limited Vaporization SAE Technical Paper 1999-01-0528 1999 10.4271/1999-01-0528
- Hiroyasu , H. and Kadota , T. Fuel Droplet Size Distribution in Diesel Combustion Chamber Bulletin of JSME 19 135 1064 1072 1974
- Li , T. , Zhang , X.Q. , Wang , B. , Guo , T. et al. Characteristics of Non-evaporating, Evaporating and Burning Sprays of Hydrous Ethanol Diesel Emulsified Fuels Fuel 191 251 265 2017
- Kong , S. , Han , Z. , and Reitz , R. The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation SAE Technical Paper 950278 1995 10.4271/950278
- Reitz , R. and Bracco , F. Mechanisms of Breakup of Round Liquid Jets Encyclopedia of fluid mechanics 3 233 249 1986
- Golovichev , V. Mechanisms: Combustion Chemistry http://www.tfd.chalmers. se/~valeri/MECH.html
- Hiroyasu , H. and Kadota , T. Models for Combustion and Formation of Nitric Oxide and Soot in Direct Injection Diesel Engines SAE Technical Paper 760129 1976 10.4271/760129
- Patterson , M. , Kong , S. , Hampson , G. , and Reitz , R. Modeling the Effects of Fuel Injection Characteristics on Diesel Engine Soot and NOx Emissions SAE Technical Paper 940523 1994 10.4271/940523
- Amsden , A. 1997
- Schmidt , D. and Rutland , C. A New Droplet Collision Algorithm Journal of Computational Physics 164 1 62 80 2000
- Naber , J. and Reitz , R. Modeling Engine Spray/Wall Impingement SAE Technical Paper 880107 1988 10.4271/880107
- Amsden , A. , O’rourke , P. , and Butler , T. 1989
- O’Rourke , P. Collective Drop Effects on Vaporizing Liquid Sprays Los Alamos Los Alamos National Lab 1981
- Li , T. , Moriwaki , R. , Ogawa , H. , Kakizaki , R. et al. Dependence of Premixed Low-Temperature Diesel Combustion on Fuel Ignitability and Volatility International Journal of Engine Research 13 1 14 27 2012
- Li , T. and Ogawa , H. Analysis of the Trade-Off between Soot and Nitrogen Oxides in Diesel-like Combustion by Chemical Kinetic Calculation SAE Int. J. Engines 5 2 94 101 2012 10.4271/2011-01-1847
- Li , T. , Yin , T. , and Wang , B. Anatomy of the Cooled EGR Effects on Soot Emission Reduction in Boosted Spark-Ignited Direct-Injection Engines Applied Energy 190 43 56 2017
- Akihama , K. , Takatori , Y. , Inagaki , K. , Sasaki , S. et al. Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature SAE Technical Paper 2001-01-0655 2001 10.4271/2001-01-0655