甲烷/空气射流燃烧中氮氧化物生成模型的研究

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甲烷/空气射流燃烧中氮氧化物生成模型的研究

姜斌^a,b; 梁红英^a; 黄国强^a,b; 李鑫钢^a,b

^a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
^b National Engineering Research Center of Distillation Technology, Tianjin University, Tianjin 300072, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-12-28 发布日期:2006-12-28
通讯作者: 姜斌

Study on NOx formation in CH₄/air jet combustion

JIANG Bin^a,b; LIANG Hongying^a; HUANG Guoqiang^a,b; LI Xingang^a,b

^a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
^b National Engineering Research Center of Distillation Technology, Tianjin University, Tianjin 300072, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-12-28 Published:2006-12-28
Contact: JIANG Bin

摘要/Abstract

摘要： With the development of reaction kinetics and transfer science, the modeling of NOx formation plays more and more important roles in the protection of environment and the design of combustion reactors; in this case, turbu-lence-chemistry model and NOx formation model are the two most important aspects. For thermal NOx mechanism, this article studied the CH4/air system and applied a set of latest NO formation rate constants published at the Leed University which replaced the original model code in FLUENT to increase its precision on prediction of NO concentration. The realizable k-ε model, Reynold Stress model and standard k-ε model were also investigated to predict the turbulent combustion reaction, which indicated that the simulation results of velocities, temperatures and concentrations of combustion productions by the standard k-ε model were in good accordance with the experimental data. With the application of the simulation results to the experimental data to fit some important kinetic parameters in the equation of O atom model and revision of the equation later, this article obtained a new NO formation rate model. It has been proved that the prediction of the developed model coincides well with the measurements.

关键词: NO formation rate model;heat transfer;mass transfer;CH4/air combustion;numerical simulation

Abstract: With the development of reaction kinetics and transfer science, the modeling of NOx formation plays more and more important roles in the protection of environment and the design of combustion reactors; in this case, turbu-lence-chemistry model and NOx formation model are the two most important aspects. For thermal NOx mechanism, this article studied the CH4/air system and applied a set of latest NO formation rate constants published at the Leed University which replaced the original model code in FLUENT to increase its precision on prediction of NO concentration. The realizable k-ε model, Reynold Stress model and standard k-ε model were also investigated to predict the turbulent combustion reaction, which indicated that the simulation results of velocities, temperatures and concentrations of combustion productions by the standard k-ε model were in good accordance with the experimental data. With the application of the simulation results to the experimental data to fit some important kinetic parameters in the equation of O atom model and revision of the equation later, this article obtained a new NO formation rate model. It has been proved that the prediction of the developed model coincides well with the measurements.

Key words: NO formation rate model, heat transfer, mass transfer, CH4/air combustion, numerical simulation

姜斌, 梁红英, 黄国强, 李鑫钢. 甲烷/空气射流燃烧中氮氧化物生成模型的研究[J]. , DOI: .

JIANG ,Bin, ,LIANG ,Hongying, ,HUANG ,Guoqiang, LI ,Xingang. Study on NOx formation in CH₄/air jet combustion[J]. , DOI: .

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