Influence of combustor pressure on NO<sub>x</sub> emission of a heavy duty gas turbine:numerical study

LI Xiaofeng; XIAO Junfeng; WANG Wei; WANG Feng

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Influence of combustor pressure on NO_x emission of a heavy duty gas turbine:numerical study

更新时间：2025-09-28

- Influence of combustor pressure on NO_x emission of a heavy duty gas turbine:numerical study
- Thermal Power Generation Vol. 46, Issue 9, Pages: 53-58(2017)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK471
- Published：2017
- 稿件说明：
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LI Xiaofeng, XIAO Junfeng, WANG Wei, et al. Influence of combustor pressure on NO_x emission of a heavy duty gas turbine:numerical study[J]. Thermal power generation, 2017, 46(9): 53-58.
DOI：

LI Xiaofeng, XIAO Junfeng, WANG Wei, et al. Influence of combustor pressure on NO_x emission of a heavy duty gas turbine:numerical study[J]. Thermal power generation, 2017, 46(9): 53-58. DOI：

摘要

为了研究重型燃气轮机燃烧室压力变化对NO_x排放的影响规律

基于某重型燃气轮机单管燃烧室

建立了预混燃烧模式下燃烧室三维数值仿真模型。模型采用可实现k-ε湍流模型和有限速率-涡耗散湍流燃烧模型对燃烧室预混燃烧流场特性进行求解

通过热力型和快速型NO_x生成模型对燃烧室NO_x排放进行计算。结果表明:从燃烧室头部至燃烧室尾部

NO_x生成平均质量分数逐步增加;在燃气轮机燃烧室工作压力范围内

随着燃烧室压力的增加

燃烧室出口NO_x生成平均质量分数以及燃烧室内NO_x生成质量分数峰值均逐渐增加。研究结果可为燃气轮机燃烧调整及低NO_x排放提供依据。

Abstract

Taking a heavy-duty gas turbine combustion chamber as the research object

the three-dimensional numerical simulation model of the combustor was established

which was used to study the influence of combustion pressure on the NO_x formation in chamber.The combustion flow field and NO_x emission characteristics of premixed combustion was solved by using the realizable k-ε turbulence model and the finite-rate/eddy-dissipation turbulent combustion mode.Moreover

the thermal and prompt type NO_x emissions were considered in the NO_x formation model.The results show that

from the head to the end of the combustion chamber

the average mass fraction of NO_x gradually increases.In the range of working pressure of the gas turbine combustion chamber

both the average mass fraction of NO_x at the combustor outlet and the peak mass fraction of NO_x formation increase with the chamber pressure.The research can provide basis for combustion adjustment and NO_x emission reduction for gas turbines.

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Influence of combustor pressure on NOx emission of a heavy duty gas turbine:numerical study

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Influence of combustor pressure on NO_x emission of a heavy duty gas turbine:numerical study