Investigating the injection characteristics effect on the performance of diesel engine using an annular injector

Esmaelnajad, Rasool; Farrokhi, Navid

doi:10.22061/jcarme.2024.9722.2307

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	Investigating the injection characteristics effect on the performance of diesel engine using an annular injector
Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 6، دوره 14، شماره 1 - شماره پیاپی 27، مهر 2024، صفحه 77-91 اصل مقاله (1002.74 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2024.9722.2307
نویسندگان
Rasool Esmaelnajad^* ¹؛ Navid Farrokhi²
¹Mianeh Technical and Engineering Faculty, University of Tabriz, Mianeh, Iran
²Department of Mechanical Engineering, Parand Branch, Islamic Azad University, Parand, Iran
تاریخ دریافت: 12 فروردین 1402، تاریخ بازنگری: 21 خرداد 1403، تاریخ پذیرش: 23 خرداد 1403
چکیده
Increasing the power and improving the performance of diesel engines is always considered by diesel engine manufacturers. Changing the geometry of the injector outlet orifice has a major impact on fuel-air mixing and combustion. In the current study, the geometry of the injector orifice is changed from circular to annular cross-section, and the effect of different injection pressures on diesel engine performance is investigated. All numerical simulations are performed by using AVL Fire code. The results show that the annular injector improves combustion and engine performance by forming better fuel distribution. Fuel injection pressure affects the performance of the annular injector in terms of droplet distribution and breakup. At low injection pressures, due to the long injection duration, most of the fuel energy release occurs after the top dead center (TDC). Therefore, the engine performance is improved, and the combustion chamber temperature and pressure are limited. However, at high injection pressures, less combustion occurs after the TDC. By changing the injector geometry to the injector with an annular cross-section orifice, the maximum reduction in SFC value is for case P5 and injection durations 10 degrees, which is decreased by 21.4%. The maximum power increase was 15% for a 2.5% fuel increase at an injection pressure of 100MPa. While NO pollutant increased slightly by changing the type of injector at different injection pressures, the soot produced at the beginning of the combustion process was well oxidized before the end of the work phase, and its amount reached less than 2e-6.
کلیدواژه‌ها
Annular injector؛ Injection pressure؛ Injection duration؛ Engine performance؛ Specific fuel consumption

مراجع
[1] F. El-Mahallawy, S.D. Habik, Fundamentals and technology of combustion, Elsevier, (2002). [2] J.B. Heywood, Internal combustion engine fundamentals, McGraw-Hill Education, (2018). [3] Y. Zhang, K. Nishida, S. Nomura, T. Ito, Spray characteristics of group-hole nozzle for DI diesel engine, 0148-7191, SAE technical paper, (2003). [4] J. Gao, Y. Matsumoto, M. Namba, K. Nishida, "An investigation of mixture formation and in-cylinder combustion processes in direct injection diesel engines using group-hole nozzles", Int. J. Engine Res., Vol. 10, No. 1, pp. 27-44, (2009). [5] S.W. Park, R.D. Reitz, "Optimization of fuel/air mixture formation for stoichiometric diesel combustion using a 2-spray-angle group-hole nozzle", Fuel, Vol. 88, No. 5, pp. 843-852, (2009). [6] S.W. Park, H.K. Suh, C.S. Lee, N. Abani, R.D. Reitz, "Modeling of group-hole-nozzle sprays using grid-size-, hole-location-, and time-step-independent models", Atomization Sprays, Vol. 19, No. 6, pp. (2009). [7] D. Siebers, B. Higgins, "Flame lift-off on direct-injection diesel sprays under quiescent conditions", SAE Transactions, pp. 400-421, (2001). [8] K. Nishida, J. Gao, Y. Matsumoto, "Experimental study on spray and mixture properties of the group-hole nozzle for direct-injection diesel engines, Part II: effects of included angle and interval between orifices", Atomization Sprays, Vol. 19, No. 4, pp. (2009). [9] A. Pawlowski, R. Kneer, A.M. Lippert, S.E. Parrish, "Investigation of the interaction of sprays from clustered orifices under ambient conditions relevant for diesel engines", SAE Int. J. Engines, Vol. 1, No. 1, pp. 514-527, (2009). [10] X. Wang, Z. Huang, W. Zhang, O.A. Kuti, K. Nishida, "Effects of ultra-high injection pressure and micro-hole nozzle on flame structure and soot formation of impinging diesel spray", Appl. Energy, Vol. 88, No. 5, pp. 1620-1628, (2011). [11] D. Montgomery, M. Chan, C. Chang, P. Farrell, R.D. Reitz, Effect of injector nozzle hole size and number on spray characteristics and the performance of a heavy duty DI diesel engine, 0148-7191, SAE Technical Paper, (1996). [12] P. Bergstrand, M. Försth, I. Denbratt, "The influence of orifice diameter on flame lift-off length", Zaragoza, Vol. 9, No., pp. 11, (2002). [13] C. Sayin, M. Gumus, M. Canakci, "Influence of injector hole number on the performance and emissions of a DI diesel engine fueled with biodiesel–diesel fuel blends", Appl. Therm. Eng., Vol. 61, No. 2, pp. 121-128, (2013). [14] S.J.M. Algayyim, A.P. Wandel, T. Yusaf, "The impact of injector hole diameter on spray behaviour for butanol-diesel blends", Energies, Vol. 11, No. 5, pp. 1298, (2018). [15] M. Vijay Kumar, A. Veeresh Babu, P. Ravi Kumar, T. Manoj Kumar Dundi, "Influence of different nozzle hole orifice diameter on performance, combustion and emissions in a diesel engine", Aust. J. Mech. Eng. , Vol. 18, No. 2, pp. 179-184, (2020). [16] L.G. Dodge, T.W. Ryan III, M.G. Ryan, "Effects of different injector hole shapes on diesel sprays", SAE transactions, pp. 1160-1168, (1992). [17] P. Sharma, T. Fang, "Spray and atomization of a common rail fuel injector with non-circular orifices", Fuel, Vol. 153, pp. 416-430, (2015). [18] P. Sharma, T. Fang, "Breakup of liquid jets from non-circular orifices", Exp. Fluids, Vol. 55, pp. 1-17, (2014). [19] K. Sakaki, T. Funahashi, S. Nakaya, M. Tsue, R. Kanai, K. Suzuki, T. Inagawa, T. Hiraiwa, "Longitudinal combustion instability of a pintle injector for a liquid rocket engine combustor", Combust. Flame, Vol. 194, pp. 115-127, (2018). [20] M. Migliaccio, A. Montanaro, C. Beatrice, P. Napolitano, L. Allocca, V. Fraioli, "Experimental and numerical analysis of a high-pressure outwardly opening hollow cone spray injector for automotive engines", Fuel, Vol. 196, pp. 508-519, (2017). [21] H. Gao, F. Zhang, Z. Zhang, E. Wang, B. Liu, "Experimental investigation on the spray characteristic of air-assisted hollow-cone gasoline injector", Appl. Therm. Eng, Vol. 151, pp. 354-363, (2019). [22] L. Wang, F. Wang, T. Fang, "Flash boiling hollow cone spray from a GDI injector under different conditions", Int. J. Multiphase Flow, Vol. 118, No., pp. 50-63, (2019). [23] H. Wu, F. Zhang, Z. Zhang, H. Gao, "Experimental investigation on the spray characteristics of a self-pressurized hollow cone injector", Fuel, Vol. 272, pp. 117710, (2020). [24] M.T. Shervani-Tabar, R. Esmaelnajad, S.E. Razavi, M. Jafari, "Study on the effects of the injection pressure of an annulus nozzle and combustion chamber on the performance of a diesel engine", J. Mech. Eng., Vol. 49, No. 4, pp. 125-134, (2019). [25] S.W. Park, H.J. Kim, C.S. Lee, Investigation of atomization characteristics and prediction accuracy of hybrid models for high-speed diesel fuel sprays, 0148-7191, SAE Technical Paper, (2003). [26] R. Payri, J.P. Viera, H. Wang, L.-M. Malbec, "Velocity field analysis of the high density, high pressure diesel spray", Int. J. Multiphase Flow, Vol. 80, pp. 69-78, (2016). [27] C.S. Lee, S.W. Park, "An experimental and numerical study on fuel atomization characteristics of high-pressure diesel injection sprays", Fuel, Vol. 81, No. 18, pp. 2417-2423, (2002). [28] J. Cha, S.Y. Yang, N. Naser, A.I. Ichim, S.H. Chung, High pressure and split injection strategies for fuel efficiency and emissions in DI diesel engine, 0148-7191, SAE Technical Paper, (2015). [29] M.G. Shatrov, L.N. Golubkov, A.U. Dunin, A.L. Yakovenko, P.V. Dushkin, "Influence of high injection pressure on fuel injection perfomances and diesel engine worcking process", Therm. Sci., Vol. 19, No. 6, pp. 2245-2253, (2015). [30] P. Carlucci, A. Ficarella, D. Laforgia, "Effects of pilot injection parameters on combustion for common rail diesel engines", SAE Trans., pp. 932-943, (2003). [31] B. Jayashankara, V. Ganesan, "Effect of fuel injection timing and intake pressure on the performance of a DI diesel engine–A parametric study using CFD", Energy Convers. Manage., Vol. 51, No. 10, pp. 1835-1848, (2010). [32] L.-M. Malbec, W.E. Eagle, M.P. Musculus, P. Schihl, "Influence of injection duration and ambient temperature on the ignition delay in a 2.34 L optical diesel engine", SAE Int. J. Engines, Vol. 9, No. 1, pp. 47-70, (2016). [33] C. Zhang, A. Zhou, Y. Shen, Y. Li, Q. Shi, "Effects of combustion duration characteristic on the brake thermal efficiency and NOx emission of a turbocharged diesel engine fueled with diesel-LNG dual-fuel", Appl. Therm. Eng., Vol. 127, pp. 312-318, (2017). [34] A.H. Lefebvre, V.G. McDonell, Atomization and sprays, CRC press, (2017). [35] C. Clark, N. Dombrowski, "Aerodynamic instability and disintegration of inviscid liquid sheets", Proceedings of the Royal Society of London. A. Math. and Phys. Sci, Vol. 329, No. 1579, pp. 467-478, (1972). [36] A. Brink, C. Mueller, P.A. KILPINEN, M. Hupa, "Possibilities and limitations of the eddy break-up model", Combust. Flame, Vol. 123, No. 1-2, pp. 275-279, (2000). [37] K. Nishida, H. Hiroyasu, "Simplified three-dimensional modeling of mixture formation and combustion in a DI diesel engine", SAE Trans., pp. 276-293, (1989). [38] J.K. Dukowicz, "A particle-fluid numerical model for liquid sprays", J. Comput. Phys., Vol. 35, No. 2, pp. 229-253, (1980). [39] N. Hassan, M. Rasul, C.A. Harch, "Modelling and experimental investigation of engine performance and emissions fuelled with biodiesel produced from Australian Beauty Leaf Tree", Fuel, Vol. 150, pp. 625-635, (2015).
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Investigating the injection characteristics effect on the performance of diesel engine using an annular injector