Numerical simulation of heat flow field and NO<i><sub>x</sub></i> concentration field in gas combustor

ZHANG Nuonan; GUO Yun

doi:10.12299/jsues.22-0107

Volume 36 Issue 4

Dec. 2022

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ZHANG Nuonan, GUO Yun. Numerical simulation of heat flow field and NOx concentration field in gas combustor[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 347-352. doi: 10.12299/jsues.22-0107

Citation:

ZHANG Nuonan, GUO Yun. Numerical simulation of heat flow field and NO_x concentration field in gas combustor[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 347-352. doi: 10.12299/jsues.22-0107

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Numerical simulation of heat flow field and NO_x concentration field in gas combustor

doi: 10.12299/jsues.22-0107

ZHANG Nuonan,
GUO Yun^,

School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2022-05-02
Publish Date: 2022-12-30

Abstract

Abstract

For a kind of gas burner, the appropriate size of the combustion chamber is selected to match, and then a complete calculation area was formed. Natural gas fuel and combustion air were injected into the combustion chamber through the gas burner to realize the complete combustion process. By simplifying the gas burner to complete geometric modeling, heat flow and combustion analysis software were used for numerical simulation of the calculation area, and the Realizable k-ε turbulence model, ED combustion model, DO radiation model and thermal NO_x generation model were selected to explore the influence of excess air coefficient α on the combustion process of the gas burner. The cloud image and distribution of temperature field and NO_x concentration field were obtained and analyzed. When the excess air coefficient α = 1.1, the NO_x concentration reached the maximum. The research results can provide reference for relevant research experiments and design of low NO_x burners.
- gas burner,
- nitrogen oxide,
- numerical simulation,
- excess air coefficient

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References(13)

References

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