Numerical simulation of influence of equivalence ratio on combustion and NOx formation in a DLE combustor

SHEN Yazhou; FU Zhongguang; SHI Li; WANG Ruixin

English

您当前的位置：

首页 >

文章列表页 >

Numerical simulation of influence of equivalence ratio on combustion and NOx formation in a DLE combustor

Thermal Power Generation Issue 6, (2017)

更新时间：2025-09-28

- Numerical simulation of influence of equivalence ratio on combustion and NOx formation in a DLE combustor
- 作者机构：
  
  华北电力大学电站设备状态监测与控制教育部重点实验室,北京,102206
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK471
- Published Online：30 June 2017，
  
  Published：2017
- 稿件说明：
移动端阅览
SHEN Yazhou, FU Zhongguang, SHI Li, et al. Numerical simulation of influence of equivalence ratio on combustion and NOx formation in a DLE combustor[J]. Thermal Power Generation, 2017, (6).
DOI：

SHEN Yazhou, FU Zhongguang, SHI Li, et al. Numerical simulation of influence of equivalence ratio on combustion and NOx formation in a DLE combustor[J]. Thermal Power Generation, 2017, (6). DOI：

摘要

采用数值模拟方法研究了干式低排放（DLE）燃烧室的流场结构及不同当量比对燃烧室内燃烧及污染物生成特性的影响。结果表明：中心回流区的高温回流燃气形成稳定的点火源，保证了燃料的着火和稳定燃烧；随着当量比的增大，燃烧室内流场变化较小，整体轴向速度略有增加，回流区范围基本不变；温度场变化较大，高温区明显扩大，整体温度上升，出口截面温度分布出现不对称的现象，下半侧高温区域面积略大于上半侧；出口NOx排放摩尔分数明显上升，整体NOx摩尔分数迅速上升，中心回流区附近增幅最为明显；旋流器的导向作用使燃烧室温度和热力型NOx分布不均；降解当量比对控制DLE燃烧室NOx排放有利。

Abstract

关键词

Keywords

references

Views

357

下载量

CSCD

Alert me when the article has been cited

提交

Publicity Resources

Effect of mine ventilation air methane on combustion characteristics of a coal- fired boiler

Numerical simulation on mixed combustion characteristics of coal-bed methane and pulverized coal in a 600 MW unit boiler

Numerical study on effect of staged oxy-fuel combustion on NOx production in wall type tangentially fired boiler

Related Author

GAO Jie

CAI Jin

QIAO Xiaolei

JIN Yan

ZHANG Xiaotao

ZHAO Wei

WEN Meng

LI Xiaofeng

Related Institution

College of Electrical and Power Engineering, Taiyuan University of Technology

School of Electric Power, North China University of Water Resources and Electric Power

Xi’an Thermal Power Research Institute Co., Ltd.

School of Energy Power Engineering, Northeast Dianli University

Xinxiang Aviation Industry (Group) Co.,Ltd.

AI问答

⁰