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An Optical Characterization of Atomization in Non-Evaporating Diesel Sprays
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 05, 2016 by SAE International in United States
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High-speed planar laser Mie scattering and Laser Induced Fluorescence (PLIF) were employed for the determination of Sauter Mean Diameter (SMD) distribution in non-evaporating diesel sprays. The effect of rail pressure, distillation profile, and consequent fuel viscosity on the drop size distribution developing during primary and secondary atomization was investigated. Samples of conventional crude-oil derived middle-distillate diesel and light distillate kerosene were delivered into an optically accessible mini-sac injector, using a customized high-pressure common rail diesel fuel injection system. Two optical channels were employed to capture images of elastic Mie and inelastic LIF scattering simultaneously on a high-speed video camera at 10 kHz. Results are presented for sprays obtained at maximum needle lift during the injection. These reveal that the emergent sprays exhibit axial asymmetry and vorticity. An increase in the rail pressure was observed to lead to finer atomization, with larger droplets observable in the neighbourhood of the central axis of the spray, decreasing with radius towards the spray boundaries. Finally, the light kerosene was observed to produce smaller droplets (as measured by Sauter mean diameter), relative to the conventional diesel, suggesting a correlation between distillation profile and viscosity, and mean spray droplet size.
CitationLockett, R., Jeshani, M., Makri, K., and Price, R., "An Optical Characterization of Atomization in Non-Evaporating Diesel Sprays," SAE Technical Paper 2016-01-0865, 2016, https://doi.org/10.4271/2016-01-0865.
- Ikegani M. Kamimoto T, Ch. 6 - Conventional Diesel Combustion, in Flow and Combustion in Reciprocating Engines, (Editors) Arcoumanis C., Kamimoto T., Springer-Verlag Berlin Heidelberg, 2009. ISBN 978-3-540-64142-1.
- Dec, J., "A Conceptual Model of DI Diesel Combustion Based on Laser-Sheet Imaging*," SAE Technical Paper 970873, 1997, doi:10.4271/970873.
- Heywood, J. Ch. 10 - Combustion in Compression-Ignition Engines, in Internal Combustion Engine Fundamentals, McGraw-Hill Book Company 1988. ISBN 0-07-100499-8.
- Badock C., Wirth R., Fath A., and Leipertz A. ,“Investigation of cavitation in real size diesel injection nozzles”, Int. J. of Heat and Fluid Flow, pp. 538-544, 1999.
- Arcoumanis C., Gavaises M., Flora H., Roth H., “Visualisation of cavitation in diesel engine injectors”, Mecanique & Industries V2:5, pp 375 - 381, 2001.
- Arcoumanis, C., Flora, H., Gavaises, M., and Badami, M., "Cavitation in Real-Size Multi-Hole Diesel Injector Nozzles," SAE Technical Paper 2000-01-1249, 2000, doi:10.4271/2000-01-1249.
- Andriotis A., Gavaises M., Arcoumanis C. ,“Vortex flow and cavitation in diesel injector nozzles”, J. Fluid Mech 610, pp. 195 - 215, 2008.
- Lockett R.D, Liverani L., Thaker D., Jeshani M., Tait N.P., “The characterization of diesel nozzle flow using high speed imaging of elastic light scattering”, Fuel 106, 605 - 616, 2013.
- Lefebvre A. H., Ch. 2 - Basic Processes in Atomization, in Atomization and Sprays, Taylor and Francis, 1989. ISBN 0-89116-603-3.
- Guildenbecher D.R., Lopez-Rivera C., Sojka P.E., “Secondary Atomization”, Exp. Fluids v46:3, pp371 - 402, 2009.
- Faeth G.M., Hsiang, L.-P., Wu, P.-K., “Structure and Breakup Properties of Sprays”, Int. J. Multiphase Flow v21, pp99 - 127, 1995.
- Lin S.P., Reitz R.D., “Drop and Spray Formation from a Liquid Jet”, Annu. Rev. Fluid. Mech. v30, pp85 - 105, 1998.
- Wu P.-K., Miranda R.F., Faeth G.M. “Effects of initial flow conditions on primary breakup of nonturbulent and turbulent round liquid jets”, Atom. Sprays v5, pp175 - 196, 1995.
- Wu P.-K., Faeth G.M., “Aerodynamic effects on primary breakup of turbulent liquids”, Atom. Sprays v3, pp265 - 289, 1993.
- Chehroudi, B., Chen, S., Bracco, F., and Onuma, Y., "On the Intact Core of Full-Cone Sprays," SAE Technical Paper 850126, 1985, doi:10.4271/850126.
- Hsiang L.-P., Faeth G.M., “Near limit drop deformation and secondary breakup”, Int.J.Multiphase Flow v19, pp721 - 735, 1992.
- Ghurri A., Kim J.-D., Kim H. G., Jung J.-Y., and Song K.-K., “The effect of injection pressure and fuel viscosity on the spray characteristics of biodiesel blends injected into an atmospheric chamber”, J. of Mech. Sc. Tech., pp. 2941-2947, 2012.
- Jankowski A., Siemińska-Jankowska B., Sandel A., and Bocheński C., “Investigation of the fuel spray atomization spectrum in common-rail system for diesel engines”, J. of KONES, pp. 53-64, 2003.
- Chen P-C, Wang W-C, Roberts L.R,b, Fang T. ,“Spray and atomization of diesel fuel and its alternatives from a single-hole injector using a common rail fuel injection system’’, Fuel, Vol.103, pp.850-861, 2013.
- Durst F., Brenn G., Xu T.H., “A review of the development and characteristics of planar phase-Doppler anemometry”, Meas. Sc. Tech. v8:11, pp1203 - 1221, 1997.
- Black D.L., McQuay M.Q., Bonin M.P., “Laser-based Techniques for Particle Size Measurement: A Review of Sizing Methods and Their Industrial Applications”, Prog. Energy Combust. Sc. V22, pp267 - 306, 1996.
- Greenhalgh D.A., “Laser imaging of fuel injection systems and combustors”, Proc. Inst. Mech. Eng. 214.4, pp367 - 376, 2000.
- Yeh C.Y., Kosaka H., Kamimoto T., “Measurement of Drop Sizes in Unsteady Dense Sprays”, Ch. 12, Recent Advances in Spray Combustion: Spray Atomization and Drop Burning Phenomena Volume 1, Ed. Kuo K., Vol. 166, Pro. Astro. Aero. 1996.
- Le Gal P., Farrugia, N., Greenhalgh D., “Laser Sheet Dropsizing of Dense Sprays”, Opt. Las. Tech. v31:1, pp 75 - 83, 1999.
- Jermy M.C., Greenhalgh D.A., “Planar dropsizing by elastic and fluorescence scattering in sprays too dense for phase Doppler measurement”, Appl. Phys. B 71, pp703 - 710, 2000.
- Berrocal E., Kristensson E., Richter M., Linne M., Alden M. ,“Application of structured illumination for multiple scattering suppression in planar laser imaging of dense sprays”, Optics Express v16:22, pp 17870 - 17881, 2008.
- Linne Paciaroni M., Hall T., Parker T., “Ballistic imaging of the near field in a dense spray”, Exp. Fluids v40 pp836 - 846, 2000.
- Powell, C.F., Duke D., Kastengren A.L., Ilavsky J. ,“Measurements of Diesel Spray Droplet Size with Ultra-Small Angle X-Ray Scattering”, 25th Ann. Conf. Liq. Atom. Spray Systems, 2013.
- Lockett R.D., Greenhalgh D. Richter J. “The Characterization of a Diesel Spray using Combined Laser Induced Fluorescence and Laser Sheet Dropsizing”, CLEO-EQEC, 1998. DOI: 10.1109/CLEOE.1998.719142.
- Lockett R.D. and Greenhalgh D. ,“The Optical Characterization of Spray and Soot Formation in a Diesel Engine”, Paper o84, Proc. Int. Conf. Sustain. Comb. (SPEIC’10), Canary Islands, 2010. DOI: 10.13140/2.1.1166.4324.
- Domann R., Hardalupas Y., “Spatial distribution of fluorescence intensity within large droplets and its dependence on dye concentration”, Appl. Opt. v 40:2, pp 3586 - 3597, 2001.
- Van de Hulst H.C. Light Scattering by Small Particles, Dover Publications Inc, 1957, reprinted 1981. ISBN-10 0-486-64228-3.
- Grandy W.T., Scattering of Waves from Large Spheres, Cambridge University Press, 2000. ISBN 0-521-02124-3.
- Price R. Shell Global Solutions, Private Communication, 2013.
- Evangelidis G. D., and Psarakis E. Z., “Projective Image Alignment by Using ECC Maximization” VISAPP (1), pp. 413-420, 2008.
- Evangelidis G. D., and Psarakis E. Z., “Parametric image alignment using enhanced correlation coefficient maximization,” IEEE Trans. Pat. Anal. Mach. Intel., pp. 1858-1865, 2008.
- “ECC Image Alignment Algorithm,” ECC Image Alignment Algorithm[Online]. Available: http://xanthippi.ceid.upatras.gr/people/evangelidis/ecc/.
- Jeshani M. “Optical Characterization of Cavitating Flows in Diesel Fuel Injection Equipment”, PhD Thesis, City University, London, 2014.
- Lockett R.D., Jeshani M., Price R., to be published, 2016.