Numerical Study of Effect of Injection Parameters on Combustion and Emission Performance of a Direct Injection Diesel-Natural Gas Engine

Gen Miao Guo; Zhi Xia He; Xiu Xiu Sun; Zhou Rong Zhang; Xi Cheng Tao

doi:10.4028/www.scientific.net/AMR.945-949.2806

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 945-949Numerical Study of Effect of Injection Parameters...

Numerical Study of Effect of Injection Parameters on Combustion and Emission Performance of a Direct Injection Diesel-Natural Gas Engine

Abstract:

By using AVL FIRE code, three-dimensional numerical simulations of the diesel-natural gas injection characteristics in a direct injection diesel-natural gas engine were conducted. The effects of the start of injection (SOI) of the pilot diesel and natural gas injection velocity on combustion and emission performance were investigated. The results showed that diesel-natural gas injection characteristics have an important influence on the subsequent combustion and emission. NO and Soot emission performance is better when the SOI was 36°BTDC (Before Top Dead Center), and a larger natural gas injection velocity usually leads to a lower engine economical efficiency.

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Periodical:

Advanced Materials Research (Volumes 945-949)

Pages:

2806-2809

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.945-949.2806

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Online since:

June 2014

Authors:

Gen Miao Guo, Zhi Xia He*, Xiu Xiu Sun, Zhou Rong Zhang, Xi Cheng Tao

Keywords:

Combustion, Diesel-Natural Gas, Direct Injection, Emission, Injection Characteristics, Numerical Simulation

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References

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