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http://dx.doi.org/10.5916/jkosme.2016.40.3.180

Effect of nozzle diameter on the reduction of smoke emission from naval ship diesel engines  

Son, Min-Soo (Department of Marine System Engineering Graduate School, Korea Maritime and Ocean University)
Choi, Jae-Sung (Division of Marine Engineering, Korea Maritime and Ocean University)
Cho, Kwon-Hae (Department of Offshore Plant Management, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.40, no.3, 2016 , pp. 180-184 More about this Journal
Abstract
Legislative and regulatory actions regarding the exhaust gas from ships are being strengthened by both international organizations and national governments, to protect human health and the environment. Exhaust gas traps are excluded from exhaust gas regulation applications, but, recently, the United States, Britain, and other developed countries have examined a variety of ways to improve the system, including the introduction of electric propulsion systems to prevent air pollution generated by naval ships. This study investigates a large number of smoke problems of naval diesel engines to verify the effect of improving the nozzle characteristics. An exhaust gas emission measurement method to determine the quality of pollutant exhaust gas generated during low-load operation is proposed through the research methodology of the smoke problem. It was confirmed that the emissions value is improved by decreasing the nozzle hole diameter and increasing the injection pressure. At the same time, the flow rate decrease equation and setting up a test memo based on the nozzle diameter confirmed that the fuel consumption, to which the nozzle diameter in the flow path is related, is reduced.
Keywords
Naval ships; Air pollution; Smoke; Diesel engine; Nozzle diameter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 A. Al-Sened and E. R. Karimi, "Strategies for NOx Reduction on Heavy Duty Engine," CIMAC Congress, pp. 272-280, 2001.
2 J. S. Choi and H. J. Jeon, A Lecture of Internal Combustion Engine, Hyosung, pp. 506-509, 2004 (in Korean).
3 H. M. Lee and R. E. Park, "Emission prediction from naval ship main propulsive diesel engine under steady navigation," Journal of the Korean Society of Marine Engineering, vol. 36, no. 6, pp.788-793, 2012 (in Korean).   DOI
4 G. Y. Goo, A study on the effcet of atomization characteristics according to nozzle hole geometry for diesel engine, M.S. Thesis, Department of Mechanical Engineering, Kyungpook National University, Korea, 2008 (in Korean).
5 J. J. Corbett and H. W. Koehler, "Updated emissions from ocean shipping," Journal of Geophysical Research, vol. 108, no. D20, pp. ACH 9-1, 2003.
6 K. H. Lee, Effect of Fuel Injection Nozzle Internal Geometry on the Spray Characteristics, M.S. Thesis, Pusan National University, Department of Mechanical and Material System, Korea, 2014 (in Korean).
7 J. Y. Kim, W. H. Yoon, and J. S. Ha, "A study on the numerical prediction of heat release rate and NOx production in medium-speed marine diesel engine," ASME ICED/RTD Fall Conference, pp. 137, 2003.
8 M. G. Kang, S. J. Kwon, J. P. Cha, Y.K. Lim, S. W. Park, and C. S. Lee, "Effect of air/fuel ratio on combustion characteristics in a compression ignition engine fueled with biodiesel," 42th KOSCO symposium, pp. 325-330, 2011.