Effects of Exhaust Gas Recirculation on Combustion and Emission of a Marine Diesel Engine

Hong Liang Yu; Gong Zhi Yu; Shu Lin Duan

doi:10.4028/www.scientific.net/AMR.926-930.905

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 926-930Effects of Exhaust Gas Recirculation on Combustion...

Effects of Exhaust Gas Recirculation on Combustion and Emission of a Marine Diesel Engine

Abstract:

Taking into account the formation of thermal NO, the local balance method and Extended Zeldovich model were used in the paper to simulate the combustion and emission of a marine diesel engine with the AVL FIRE software and to verify the model. The effects of exhaust gas recirculation(EGR) ratios of 0%, 10%and 20% on combustion and emission of a diesel engine were discussed. The purpose of the paper provided a theoretical basis for the marine diesel engine upgrade of Chinese small and medium sized vessels, especially fishing vessel engine. The results show that with the increasing of EGR ratio,the cylinder pressure and combustion temperatures decreases and the peak of soot also shown a downward trend and more gentle, under the same load conditions.

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Periodical:

Advanced Materials Research (Volumes 926-930)

Pages:

905-908

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.926-930.905

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Online since:

May 2014

Authors:

Hong Liang Yu*, Gong Zhi Yu, Shu Lin Duan

Keywords:

Diesel Engine, Emission Characteristic, Exhaust Gas Recirculation, Numerical Simulation

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