Assessment of impinged flame structure in high-pressure direct diesel injection

Zhao, Zhihao; Zhu, Xiucheng; Naber, Jeffrey; Lee, Seong-Young

doi:10.1177/1468087419859788

Assessment of impinged flame structure in high-pressure direct diesel injection

Journal Article · Mon Jul 01 00:00:00 EDT 2019 · International Journal of Engine Research

DOI:https://doi.org/10.1177/1468087419859788· OSTI ID:1799295

^[1]; Zhu, Xiucheng ^[2]; Naber, Jeffrey ^[2]; Lee, Seong-Young ^[2]

Michigan Technological University, Houghton, MI, USA; OSTI
Michigan Technological University, Houghton, MI, USA

Spray impingement often occurs during cold-start in direct-injection diesel engines, affecting the subsequent combustion process by altering the local flow condition. This work has investigated the impinged flame structure by examining local expansion distance and planar curvature of the boundary in details. The experiments were carried out in a constant volume combustion chamber. The injection pressure and ambient density were varied from 120 to 180 MPa and 14.8 to 30.0 kg/m³under non-vaporizing conditions, respectively. For reacting conditions, the injection pressure and ambient density were fixed at 150 MPa and 22.8 kg/m³but with different ambient temperatures from 800 to 1000 K. Unlike orthogonal spray impingement, the profile of expansion distance along the radial direction at the 60° impinging angle is non-uniform but the profile is comparable between the non-vaporizing and reacting conditions under the same injection pressure and ambient density. With the help of Intensity-aXial-Time method, the most intensive soot luminosity region and Mie scattering intensity region are identified and the region has been found to be along the impinged spray axial direction. Outmost boundary of an impinged flame is found to have wrinkles attributed to air entrainment. The temporal level of flame wrinkles is higher in reacting conditions than in non-vaporizing conditions. The scatter distribution of the boundary curvature and near-field soot formation illustrates an inverted “S” shape correlation with time. High flame luminosity is found to be formed in concave regions while less soot is formed in convex regions. This inverted S-shape is a new finding of the state relationship at the solid–liquid–gas impinged flame propagation. Finally, heat flux measurement through the plate is examined.

Research Organization:: Michigan Technological Univ., Houghton, MI (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

DOE Contract Number:: EE0007292

OSTI ID:: 1799295

Journal Information:: International Journal of Engine Research, Journal Name: International Journal of Engine Research Journal Issue: 2 Vol. 21; ISSN 1468-0874

Publisher:: SAGE

Country of Publication:: United States

Language:: English

References (26)

Influence of Diesel Engine Combustion Parameters on Primary Soot Particle Diameter Mathis, Urs; Mohr, Martin; Kaegi, Ralf Environmental Science & Technology, Vol. 39, Issue 6 https://doi.org/10.1021/es049578p	journal	March 2005
Effects of injection pressure on ignition and combustion characteristics of impinging diesel spray Du, Wei; Zhang, Qiankun; Zhang, Zheng Applied Energy, Vol. 226 https://doi.org/10.1016/j.apenergy.2018.06.032	journal	September 2018
Experimental investigation on spray-wall impingement characteristics of n-butanol/diesel blended fuels Yu, Hanzhengnan; Liang, Xingyu; Shu, Gequn Fuel, Vol. 182 https://doi.org/10.1016/j.fuel.2016.05.115	journal	October 2016
Spray and evaporation characteristics of n-pentanol–diesel blends in a constant volume chamber Ma, Yinjie; Huang, Sheng; Huang, Ronghua Energy Conversion and Management, Vol. 130 https://doi.org/10.1016/j.enconman.2016.10.063	journal	December 2016
Scale-Based Description and Recognition of Planar Curves and Two-Dimensional Shapes Mokhtarian, Farzin; Mackworth, Alan IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. PAMI-8, Issue 1 https://doi.org/10.1109/TPAMI.1986.4767750	journal	January 1986
Generation of PDFS for flame curvature and for flame stretch rate in premixed turbulent combustion Bradley, D. Combustion and Flame, Vol. 135, Issue 4 https://doi.org/10.1016/S0010-2180(03)00181-0	journal	December 2003
A Threshold Selection Method from Gray-Level Histograms Otsu, Nobuyuki IEEE Transactions on Systems, Man, and Cybernetics, Vol. 9, Issue 1 https://doi.org/10.1109/TSMC.1979.4310076	journal	January 1979
Pressure influence on the flame front curvature of turbulent premixed flames: comparison between experiment and theory Soika, A.; Dinkelacker, F.; Leipertz, A. Combustion and Flame, Vol. 132, Issue 3 https://doi.org/10.1016/S0010-2180(02)00490-X	journal	February 2003
Ignition, lift-off, and soot formation studies in n-dodecane split injection spray-flames Moiz, Ahmed Abdul; Cung, Khanh D.; Lee, Seong-Young International Journal of Engine Research, Vol. 18, Issue 10 https://doi.org/10.1177/1468087417700778	journal	February 2017
Effect of wall surface temperature on ignition and combustion characteristics of diesel fuel spray impingement Zhang, Zheng; Liu, Fushui; An, Yifeng Applied Thermal Engineering, Vol. 137 https://doi.org/10.1016/j.applthermaleng.2018.03.040	journal	June 2018
Transient local extinction and reignition behavior of diffusion flames affected by flame curvature and preferential diffusion Yoshida, Kenji; Takagi, Toshimi Symposium (International) on Combustion, Vol. 27, Issue 1 https://doi.org/10.1016/S0082-0784(98)80461-X	journal	January 1998
Investigation of the combustion and emission characteristics of partially premixed compression ignition in a heavy-duty diesel engine Cheng, Xiao-Bei; Hu, Yang-Yang; Yan, Fang-Qin Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 228, Issue 7 https://doi.org/10.1177/0954407013513012	journal	February 2014
Engine performance and emissions of a diesel engine operating on diesel-RME (rapeseed methyl ester) blends with EGR (exhaust gas recirculation) Tsolakis, A.; Megaritis, A.; Wyszynski, M. Energy, Vol. 32, Issue 11 https://doi.org/10.1016/j.energy.2007.05.016	journal	November 2007
Convection Heat Transfer Bejan, Adrian John Wiley & Sons, Inc. https://doi.org/10.1002/9781118671627	book	January 2013
High Pressure Impinging Spray Film Formation Characteristics Zhao, Le; Zhao, Zhihao; Zhu, Xiucheng WCX World Congress Experience, SAE Technical Paper Series https://doi.org/10.4271/2018-01-0312	conference	April 2018
Local curvature measurements of a lean, partially premixed swirl-stabilised flame Bayley, Alan E.; Hardalupas, Yannis; Taylor, Alex M. K. P. Experiments in Fluids, Vol. 52, Issue 4 https://doi.org/10.1007/s00348-011-1181-4	journal	August 2011
Effect of fuel injection parameters on combustion stability and emissions of a mineral diesel fueled partially premixed charge compression ignition (PCCI) engine Jain, Ayush; Singh, Akhilendra Pratap; Agarwal, Avinash Kumar Applied Energy, Vol. 190 https://doi.org/10.1016/j.apenergy.2016.12.164	journal	March 2017
Combustion structure of free and wall-impinging diesel jets by simultaneous laser-induced fluorescence of formaldehyde, poly-aromatic hydrocarbons, and hydroxides Bruneaux, G. International Journal of Engine Research, Vol. 9, Issue 3 https://doi.org/10.1243/14680874JER00108	journal	June 2008
An Experimental and Numerical Study of Diesel Spray Impingement on a Flat Plate Zhao, Le; Torelli, Roberto; Zhu, Xiucheng SAE International Journal of Fuels and Lubricants, Vol. 10, Issue 2 https://doi.org/10.4271/2017-01-0854	journal	March 2017
Experimental assessment for instantaneous temperature and heat flux measurements under Diesel motored engine conditions Torregrosa, A. J.; Bermúdez, V.; Olmeda, P. Energy Conversion and Management, Vol. 54, Issue 1 https://doi.org/10.1016/j.enconman.2011.10.009	journal	February 2012
Partially Homogenous Charge Compression Ignition Engine Development for Low Volatility Fuels Singh, Akhilendra Pratap; Agarwal, Avinash Kumar Energy & Fuels, Vol. 31, Issue 3 https://doi.org/10.1021/acs.energyfuels.6b02832	journal	February 2017
Reaction mechanism of soot formation in flames Frenklach, Michael Physical Chemistry Chemical Physics, Vol. 4, Issue 11 https://doi.org/10.1039/b110045a	journal	February 2002
Conceptual models for partially premixed low-temperature diesel combustion Musculus, Mark P. B.; Miles, Paul C.; Pickett, Lyle M. Progress in Energy and Combustion Science, Vol. 39, Issue 2-3 https://doi.org/10.1016/j.pecs.2012.09.001	journal	April 2013
Effects of ultra-high injection pressure and micro-hole nozzle on flame structure and soot formation of impinging diesel spray Wang, Xiangang; Huang, Zuohua; Zhang, Wu Applied Energy, Vol. 88, Issue 5 https://doi.org/10.1016/j.apenergy.2010.11.035	journal	May 2011
Curvature effects on flame kernels in a turbulent environment Jenkins, K. W.; Cant, R. S. Proceedings of the Combustion Institute, Vol. 29, Issue 2 https://doi.org/10.1016/S1540-7489(02)80247-4	journal	January 2002
The effect of oxygenated fuel properties on diesel spray combustion and soot formation Park, Wonah; Park, Seunghyun; Reitz, Rolf D. Combustion and Flame, Vol. 180 https://doi.org/10.1016/j.combustflame.2016.02.026	journal	June 2017

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