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http://dx.doi.org/10.5916/jkosme.2012.36.8.997

Computational Study on The Effect of Injection Nozzle Hole Exit Angle Variation on Injection Characteristics  

Kim, Ju Youn (한국해양대학교 대학원 기계공학과)
Park, Kweon Ha (한국해양대학교 기계에너지시스템공학부)
Lee, Seung Ho ((주)신원 미크론)
Abstract
Emission regulations have been strengthened step by step for marine engines. A noble measure is required both inside and outside of the combustion chamber. The combustion characteristics in cylinder have a very close relationship with the exhaust emission characteristics. Injection valve and nozzle hole geometry is an important factor for combustion. The study to improve the spray characteristics has concentrated on nozzle inlet geometry and nozzle hole diameter, but the exit geometry has not considered. In this study the nozzle exit angle variation was tested. The results show that the angle between $30^{\circ}$ and $60^{\circ}$ is more effective than the other cases.
Keywords
Injection characteristics; Nozzle geometry; Diesel engine;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 W.-H. Yoon, B.-S. Kim, and S.-H, Ryu, et al, "Effect of fuel nozzle configuration on the reduction of NOx emission in medium-speed marine diesel engine", Conference of the Korean Society of Marine Engineering, Nov. 01, pp. 13-14, 2005 (in Korean).   과학기술학회마을
2 D.-G. Kim, M.-K. Kim, and S.-H. Yoon, "The flow characteristics with variation of nozzle-to-nozzle angles on unventilated dual jests", Jounal of the Korean Society of Marine Engineering, vol. 32, no. 8, pp. 1231-1239, 2008 (in Korean).   과학기술학회마을   DOI   ScienceOn
3 K.-S. Cha, W.-I. Chung, and C.-G. Park, "A study on spray behaviors with variation of nozzle diameter in the diesel combustion chamber", Transactions of Korean Society of Automotive Engineers, vol. 8, no. 3, pp. 18-27, 2000 (in Korean).   과학기술학회마을
4 F.J. Salvador, J.V. Romero, M.D. Rosello, and J. Martinez-Lopez, "Validation of a code for modeling cavitation phenomena in diesel injector nozzle", Elsevier Mathmatical and computer Modeling, vol. 52, no. 52, pp. 1123-1132, 2010.   DOI   ScienceOn
5 F.J. Salvador, J.V. Romero, and M.D. Rosello, "Influence of biofuels on the internal flow in diesel injector nozzles", Elsevier Mathmatical and computer Modeling vol. 54, no. 54, pp. 1699-1705, 2011.   DOI   ScienceOn
6 Sibendu Som, Anita I. Ramirez, Douglas E. Longman, and Suresh K. Aggarwal, "Effect of nozzle orifice geometry on spray combustion, and emission characteristics under diesel engine conditions", Elsevier Fuel vol. 90, no. 90, pp. 1267-1276, 2011.   DOI   ScienceOn
7 C. Acroumanis, M. Gavaises, J. M. Nouri, E. Wahab and R. Horrocks, "Analysis of the flow in the nozzle of a vertical Multi-Hole diesel engine injector", SAE paper 980811, 1998.
8 W.-J. Chung, S.-H. Oh, and C.-H. Son, "Numerical analysis of the flow field of circular nozzle exit region", Journal of Fluid Machinery, vol. 13, no. 6, pp. 13-18, 2010 (in Korean).   과학기술학회마을   DOI   ScienceOn
9 B.-H. Kim, K.-H. Ryu, and E.-I. Jung, et al, "Flow and performance analysis of atomizing nozzle", Journal of the Korean Society of Manufacturing Process Engineers, vol. 9, no. 3, pp. 42-48, 2010 (in Korean).
10 J.-K. Kim, J.-H. Lee, and H.-B. Chang, "Computational investigation of pintle nozzle flow", Journal of the Korean Society of Propulsion Engineers, vol. 13, no. 2, pp. 35-41, 2009 (in Korean).   과학기술학회마을
11 Tommaso Lucchini, Gianluca D'Errico, Daniele Ettorre, "Numerical investigation of the spray-mesh-tubulence interactions for high-pressure, evaporating sprays at engine conditions". Elsivier International Journal of Heat and Fluid Flow, no. 32, pp. 285-297, 2011.   DOI   ScienceOn