Numerical Simulation on the Working Process of a Lean Burn Natural Gas Engine

Li Yan Feng; Chun Huan Zhang; Chang Jun Xiong

doi:10.4028/www.scientific.net/AMR.664.916

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 664Numerical Simulation on the Working Process of a...

Numerical Simulation on the Working Process of a Lean Burn Natural Gas Engine

Abstract:

The working process of a lean burn natural gas spark ignition engine was simulated with a 3-D CFD software package AVL-FIRE. Such simulations were made to analyze and understand the flow field, fuel/air mixture distribution, ignition and flame propagation. The simulations provide basis for the optimization of the combustion system of the engine. Two injection strategies for the pre-chamber enrichment were established and compared. The results indicate that with enrichment injection in the pre-chamber, the fuel/air equivalence ratio is precisely controlled in the range of 1.0 to 1.1, stable ignition in the pre-chamber is ensured, and fast initial flame propagation in main combustion chamber is realized.

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Periodical:

Advanced Materials Research (Volume 664)

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916-922

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.664.916

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Online since:

February 2013

Authors:

Li Yan Feng, Chun Huan Zhang, Chang Jun Xiong

Keywords:

Lean Burn, Numerical Simulation, Spark Ignition, Working Process

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References

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