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Emissions Benefits of Group Hole Nozzle Injectors under Conventional Diesel Combustion Conditions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2020 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
This work explores the effectiveness of common rail fuel injectors equipped with Grouped Hole Nozzles (GHNs) in aiding the mixing process and reducing particulate matter (PM) emissions of Conventional Diesel Combustion (CDC) engines, while maintaining manageable Oxides of Nitrogen (NOx) levels. Parallel (pGHN), converging (cGHN) and diverging (dGHN) - hole GHNs were studied and the results were compared to a conventional, single hole nozzle (SHN) with the same flow area. The study was conducted on a single cylinder medium-duty engine to isolate the effects of the combustion from multi-cylinder effects and the conditions were chosen to be representative of a typical mid-load operating point for an on-road diesel engine. The effects of injection pressure and the Start of Injection (SOI) timing were explored and the tradeoffs between these boundary conditions are examined by using a response surface fitting technique, to identify an optimum operating condition. It is found that the GHNs offer a significant PM benefit along with a negligible NOx effect and that the cGHN and dGHN nozzles give the best PM performance at two different conditions. Furthermore, it was observed that GHN effects are dominated by injection pressure effects as the injection pressure was increased, with the differences between GHNs and the SHN becoming negligible above 1500 bar. A strong dependence on the injection timing was also seen, with the differences between GHNs and SHN being strongest when the injection occurs at, and just after, top dead center, suggesting that an optimum between power, emissions and injection pressure can be attained through GHN use in the medium duty sector.
CitationBabu, A., Staaden, D., Kokjohn, S., and Dempsey, A., "Emissions Benefits of Group Hole Nozzle Injectors under Conventional Diesel Combustion Conditions," SAE Technical Paper 2020-01-0302, 2020, https://doi.org/10.4271/2020-01-0302.
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- Kalghatgi, G. and Johansson, B. , “Gasoline Compression Ignition Approach to Efficient, Clean and Affordable Future Engines,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232(1):118-138, 2018, doi:10.1177/0954407017694275.
- Roberts, J.A. , “Isolation of Fuel Property and Boundary Condition Effects on Low Load Gasoline Compression Ignition (GCI),” Ph.D, Mechanical Engineering, University of Wisconsin - Madison, Madison, WI, 2018.
- Sellnau, M., Sinnamon, J., Hoyer, K., and Husted, H. , “Gasoline Direct Injection Compression Ignitio (GDCI) - Diesel-Like Efficiency with Low CO2 Emissions,” SAE Int. J. Engines 4(1):2010-2022, 2011, doi:https://doi.org/10.4271/2011-01-1386.
- Kokjohn, S.L. , “Reactivity Controlled Compression Ignition (RCCI) Combustion,” Ph.D, Mechanical Engineering, University of Wisconsin - Madison, Madison, WI, 2012.
- Kokjohn, S., Hanson, R., Splitter, D., Kaddatz, J. et al. , “Fuel Reactivity Controlled Compression Ignition (RCCI) Combustion in Light- and Heavy-Duty Engines,” SAE Int. J. Engines 4(1):360-374, 2011, doi:https://doi.org/10.4271/2011-01-0357.
- Dec, J.E. and Yang, Y. , “Boosted HCCI for High Power without Engine Knock and with Ultra-Low NOx Emissions - Using Conventional Gasoline,” SAE Int. J. Engines 3(1):750-767, 2010, doi:https://doi.org/10.4271/2010-01-1086.
- Bessonette, P.W., Schleyer, C.H., Duffy, K.P., Hardy, W.L. et al. , “Effects of Fuel Property Changes on Heavy-Duty HCCI Combustion,” SAE Technical Paper 2007-01-0191, 2007, doi:https://doi.org/10.4271/2007-01-0191.
- Brogan, M.S., Clark, A.D., and Brisley, R.J. , “Recent Progress in NOx Trap Technology,” SAE Technical Paper 980933, 1998, doi:https://doi.org/10.4271/980933.
- Locker, R.J., Gunasekaran, N., and Sawyer, C. , “Diesel Particulate Filter Test Methods,” SAE Technical Paper 2002-01-1009, 2002, doi:https://doi.org/10.4271/2002-01-1009.
- Miller, W.R., Klein, J.T., Mueller, R., Doelling, W. et al. , “The Development of Urea-SCR Technology for US Heavy Duty Trucks,” SAE Technical Paper 2000-01-0190, 2000, doi:https://doi.org/10.4271/2000-01-0190.
- “Core Aftertreatment Technologies - Cummins,” Cummins Inc., https://www.cummins.com/components/aftertreatment/system-fundamentals, accessed Nov. 24, 2019.
- “Building Block Technologies for Tier 4 Next Generation Products - Caterpillar,” Caterpillar Inc., https://www.cat.com/en_US/support/operations/technology/tier-4-technology/building-block-technology.html, accessed Nov. 24, 2019.
- Hiroyasu, H. and Arai, M. , “Structures of Fuel Sprays in Diesel Engines,” SAE Technical Paper 900475, 1990, doi:https://doi.org/10.4271/900475.
- Lida, N., Nishimura, H., Kotsuji, T., Yoshida, Y. et al. , “Effects of High-Pressure Fuel Injection and a Micro-Hole Nozzle on Combustion in a Rapid Compression Machine,” SAE Technical Paper 970893, 1997, doi:https://doi.org/10.4271/970893.
- Kobori, S., Kamimoto, T., and Kosaka, H. , “Ignition, Combustion and Emissions in a DI Diesel Engine Equipped with a Micro-Hole Nozzle,” SAE Technical Paper 960321, 1996, doi:https://doi.org/10.4271/960321.
- Wang, X., Huang, Z., Zhang, W., Kuti, O.A. et al. , “Effects of Ultra-High Injection Pressure and Micro-Hole Nozzle on Flame Structure and Soot Formation of Impinging Diesel Spray,” Applied Energy 88(5):1620-1628, 2011, doi:10.1016/j.apenergy.2010.11.035.
- Su, T.F., Chang, C.T., Reitz, R.D., Farrell, P.V. et al. , “Effects of Injection Pressure and Nozzle Geometry on Spray SMD and DI Emissions,” SAE Technical Paper 952360, 1995, doi:https://doi.org/10.4271/952360.
- Pickett, L.M. and Siebers, D.L. , “Orifice Diameter Effects on Diesel Fuel Jet Flame Structure,” Journal of Engineering for Gas Turbines and Power 127(1):187-196, 2005, doi:10.1115/1.1760525.
- Kuhnert, S., Wagne, U., Spicher, U., Haas, S.-F. et al. , “Influence of Injection Nozzle Hole Diameter on Highly Premixed and Low Temperature Diesel Combustion and Full Load Behavior,” SAE Technical Paper 2010-01-2109, 2010, doi:https://doi.org/10.4271/2010-01-2109.
- Satoru Sasaki, K., Tokuji Kuronita, O., and Kanehito Nakamura, I. , “Fuel Injection Nozzle Having Multiple Injection Holes,” U.S. Patent Appl. 11/504,661, 2006.
- Menne, C. et al. , “3D-CFD In-Nozzle Flow Simulation and Separate Row Injection Rate Measurement as Preparatory Steps for a Detailed Analysis of Multi-Layer Nozzles,” presented at in the 7th International Symposium Towards Clean Diesel Engines, Aachen, Germany, 2009.
- Brands, T., Hottenbach, P., Koss, H.-J., Grünefeld, G. et al. , “Quantitative Fuel-Air-Mixing Measurements in Diesel-Like Sprays Emanating from Convergent and Divergent Multi-Layer Nozzles,” SAE Int. J. Engines 5(2):430-445, 2012, doi:https://doi.org/10.4271/2012-01-0464.
- Bergstrand, P. and Denbratt, I. , “The Effects of Multirow Nozzles on Diesel Combustion,” SAE Technical Paper 2003-01-0701, 2003, doi:https://doi.org/10.4271/2003-01-0701.
- Gauding, M., Pawlowski, A., Felsch, C., Sonntag, B. et al. , “Fundamental Investigation of Diesel Spray-Spray Interaction for Cluster-Hole Nozzles,” Presented at in the 11th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS), Vail, CO, 2009.
- Cárdenas, M., Hottenbach, P., Kneer, R., and Grünefeld, G. , “Investigations of Clustred Diesel Jets under Quiescent High-Pressure and High-Temperature Conditions Using Mie, Schlieren and Chemiluminescence Imaging,” SAE Int. J. Engines 2:272-286, 2009, doi:https://doi.org/10.4271/2009-01-2771.
- Pawlowski, A., Kneer, R., Lippert, A.M., and Parrish, S.E. , “Investigation of the Interaction of Sprays from Clustered Orifices under Ambient Conditions Relevant for Diesel Engines,” SAE Int. J. Engines 1(1):514-527, 2008, doi:https://doi.org/10.4271/2008-01-0928.
- Nguyen, D. et al. , “Spray Flow Structure from Twin-Hole Diesel Injector Nozzles,” Experimental Thermal and Fluid Science 86:235-247, 2017, doi:10.1016/j.expthermflusci.2017.04.020.
- Zhang, Y., Nishida, K., Nomura, S., and Ito, T. , “Spray Characteristics of Group-Hole Nozzle for DI Diesel Engine,” SAE Technical Paper 2003-01-3115, 2003, doi:https://doi.org/10.4271/2003-01-3115.
- Park, S.W. and Reitz, R.D. , “A Gas Jet Superposition Model for CFD Modeling of Group-Hole Nozzle Sprays,” International Journal of Heat and Fluid Flow 30(6):1193-1201, 2009, doi:10.1016/j.ijheatfluidflow.2009.06.002.
- Park, S.W. and Reitz, R.D. , “Modeling the Effect of Injector Nozzle-Hole Layout on Diesel Engine Fuel Consumption and Emissions,” J. Eng. Gas Turbines Power 130, 2008, doi:10.1115/1.2835352.
- Nishida, K., Nomura, S., and Yuhei, M. , “Spray and Mixture Properties of Group-Hole Nozzle for D.I. Diesel Engines,” Presented at in the 10th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS), Kyoto, Japan, 2006.
- Park, S., Reitz, R.D., and Kim, J. , “Combustion and Emission Characteristics of Converging Group-Hole Nozzle under Lean Engine Operating Conditions,” Fuel 90(11):3259-3267, 2011, doi:10.1016/j.fuel.2011.06.021.
- Gramlich, R. et al. , “Air Entrainment and Momentum Distribution in the Near Field of Diesel Sprays from Group Hole Nozzles,” Presented at in the 27th Annual Conference on Liquid Atomization and Spray Systems (ILASS) - Europe, Brighton, UK, 2016.
- Gramlich, R., Leick, P., Roisman, I.V., and Tropea, C. , “Investigation of the Near-Field of Sprays from Group-Hole Nozzles under Evaporating Conditions,” Presented at in the 13th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS), Tainan, Taiwan, 2015.
- Dohle, U., Krüger, M., Naber, D., Stein, J.O. et al. , “Results of Combustion Optimization by Use of Multihole Nozzles in Modern Passenger Car Diesel Engines (in German),” Presented at in the 27th International Motor Symposium, Vienna, 2006.
- Gao, J., Matsumoto, Y., Namba, M., and Nishida, K. , “Group-Hole Nozzle Effects on Mixture Formation and In-cylinder Combustion Processes in Direct-Injection Diesel Engines,” SAE Technical Paper 2007-01-4050, 2007, doi:https://doi.org/10.4271/2007-01-4050.
- Moon, S., Matsumoto, Y., Nishida, K., and Gao, J. , “Improving Diesel Mixture Preparation by Optimization of Orifice Arrangements in a Group-Hole Nozzle,” International Journal of Engine Research 11(2):109-126, 2010, doi:10.1243/14680874jer05909.
- Moon, S., Matsumoto, Y., Nishida, K., and Gao, J. , “Gas Entrainment Characteristics of Diesel Spray Injected by a Group-Hole Nozzle,” Fuel 89(11):3287-3299, 2010, doi:10.1016/j.fuel.2010.05.011.
- Peters, N. and Won, H. , “A Cluster Nozzle Concept with High Injection Pressures for DI Diesel Engine,” Presented at in the 7th International Symposium Towards Clean Diesel Engines, Aachen, Germany, 2009.
- Won, H.W. and Peters, N. , “Modified Bowl Geometry for Cluster Nozzles in Direct-Injection Diesel Engines,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 224(7):953-968, 2010, doi:10.1243/09544070jauto1371.
- Won, H.W. and Peters, N. , “Optimizing the Injection Pressure for Cluster Nozzle Concepts in a Direct Injection Diesel Engine,” International Journal of Engine Research 11(2):163-175, 2010, doi:10.1243/14680874jer05409.
- Won, H.W. et al. , “Investigation of Particulate Emissions for Cluster-Nozzle Concepts in DI Diesel Engines,” Presented at in the 11th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS), Vail, CO, 2009.
- Won, H.W., Sharma, A., Moon, S.E., Vanegas, A. et al. , “An Experimental Study of Cluster Nozzles for DI Diesel Engine,” SAE Technical Paper 2009-24-0053, 2009, doi:https://doi.org/10.4271/2009-24-0053.
- Menne, C. et al. , “Advanced Two Row Nozzle Concepts with Interacting Fuel Sprays,” Presented at in the 6th THIESEL Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines, Valencia, Spain, 2010.
- Adomeit, P., Rohs, H., Körfer, T., and Busch, H. , “Spray Interaction and Mixture Formation in Diesel Engines with Grouped Hole Nozzles,” Presented at in the 4th THIESEL Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines, Valencia, Spain, 2006.
- Brands, T., Hottenbach, P., Koß, H.-J., Grünefeld, G. et al. , “Effects of Ambient Conditions and Nozzle Design on the Velocity of Clustered Diesel Jets,” presented at in the 15th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 2010.
- Gatowski, J.A., Balles, E.N., Chun, K.M., Nelson, F.E. et al. , “Heat Release Analysis of Engine Pressure Data,” SAE Technical Paper 841359, 1984, doi:https://doi.org/10.4271/841359.
- ISO , “ISO 10054:1998 - Internal Combustion Compression-Ignition Engines - Measurement Apparatus for Smoke from Engines Operating under Steady-State Conditions - Filter-Type Smokemeter, 1998.
- Noboru Nagase, A. , “Piezo Injector and Piezo Injector System,” U.S. Patent Appl. 11/819,545, 2007.
- Kim, J., Park, S.W., Andrie, M., Reitz, R.D. et al. , “Experimental Investigation of Intake Condition and Group-Hole Nozzle Effects on Fuel Economy and Combustion Noise for Stoichiometric Diesel Combustion in an HSDI Diesel Engine,” SAE Int. J. Engines 2(1):1054-1067, 2009, doi:https://doi.org/10.4271/2009-01-1123.
- Montanaro, A. and Allocca, L. , “Impact of the Nozzle Coking on Spray Formation for Diesel Injectors,” SAE Technical Paper 2013-01-2546, 2013, doi:https://doi.org/10.4271/2013-01-2546.
- Napolitano, P., Guido, C., Beatrice, C., and Ciaravino, C. , “Analysis of Nozzle Coking Impact on Emissions and Performance of a Euro5 Automotive Diesel Engine,” SAE Int. J. Engines 6(3):1801-1813, 2013, doi:https://doi.org/10.4271/2013-24-0127.
- d’Ambrosio, S. and Ferrari, A. , “Diesel Injector Coking: Optical-Chemical Analysis of Deposits and Influence on Injected Flow-Rate, Fuel Spray and Engine Performance,” Journal of Engineering for Gas Turbines and Power 134(6), 2012, doi:10.1115/1.4005991.
- Argueyrolles, B., Dehoux, S., Gastaldi, P., Grosjean, L. et al. , “Influence of Injector Nozzle Design and Cavitation on Coking Phenomenon,” SAE Technical Paper 2007-01-1896, 2007, doi:https://doi.org/10.4271/2007-01-1896.
- Ikemoto, M., Omae, K., Nakai, K., Ueda, R. et al. , “Injection Nozzle Coking Mechanism in Common-rail Diesel Engine,” SAE Int. J. Fuels Lubr. 5(1):78-87, 2012, doi:https://doi.org/10.4271/2011-01-1818.
- Tang, J., Pischinger, S., Lamping, M., Körfer, T. et al. , “Coking Phenomena in Nozzle Orifices of DI-Diesel Engines,” SAE Int. J. Fuels Lubr. 2(1):259-272, 2009, doi:https://doi.org/10.4271/2009-01-0837.
- Raeie, N., Emami, S., and Karimi Sadaghiyani, O. , “Effects of Injection Timing, before and after Top Dead Center on the Propulsion and Power in a Diesel Engine,” Propulsion and Power Research 3(2):59-67, 2014, doi:10.1016/j.jppr.2014.06.001.