Effect of fuel nozzle position on pollutant generation performance of combustor

Aiguo LIU; Haoran LI; Xuanren CHEN; Haoyang YU; Xiaodong MAO; Jian HU

doi:10.13224/j.cnki.jasp.20200507

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Effect of fuel nozzle position on pollutant generation performance of combustor

Combustion, Heat and Mass Transfer | 更新时间：2025-04-07

- Effect of fuel nozzle position on pollutant generation performance of combustor
- Journal of Aerospace Power Vol. 36, Issue 9, Pages: 1924-1931(2021)
- 作者机构：
  
  1.沈阳航空航天大学辽宁省航空推进系统先进测试技术重点实验室，沈阳 110136
  2.中国航空发动机集团有限公司湖南动力机械研究所，湖南株洲 412002
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.20200507
  CLC：
- 稿件说明：
移动端阅览
Aiguo LIU, Haoran LI, Xuanren CHEN, et al. Effect of fuel nozzle position on pollutant generation performance of combustor[J]. Journal of Aerospace Power, 2021, 36(9): 1924-1931.
DOI：

Aiguo LIU, Haoran LI, Xuanren CHEN, et al. Effect of fuel nozzle position on pollutant generation performance of combustor[J]. Journal of Aerospace Power, 2021, 36(9): 1924-1931. DOI： 10.13224/j.cnki.jasp.20200507.

摘要

对一种使用中低热值生物质气的干式低排放（DLE）微型燃气轮机燃烧室开展了研究，对燃料喷嘴口在不同位置时的污染物生成特性进行了实验测试和数值模拟，获得了喷口位置对燃料与空气的混合均匀性、NOx生成特性的影响规律。结果表明：调节燃烧室的燃料分配比例、燃料喷口位置对燃烧室的排放特性会产生影响，存在一个使NOx排放最低的燃料分配比例；燃料与空气混合的均匀性是影响NOx生成的主要因素之一；NOx主要在值班燃烧区中产生，调整值班级喷口喷射方式可以使NOx质量浓度降至7.6 mg/m

。

Abstract

A dry⁃type low emission （DLE） micro gas turbine combustor with medium and low calorific value biomass gas was studied.The experimental test and numerical simulation of pollutant generation characteristics at different positions of fuel nozzle were carried out.The influences of nozzle position on fuel air mixing uniformity and NOx generation characteristics were obtained.The results showed that：adjusting the fuel distribution ratio and the position of the fuel nozzle can affect the emission characteristics of the combustion chamber，and there was a fuel distribution ratio that made the NOx emission the lowest；the uniformity of the fuel and air mixture was the main factor affecting the NOx generation；NOx was mainly produced in the duty combustion area，and the NOx mass concentration can be reduced to 7.6 mg/m

by adjusting the fuel distribution ratio and the position of the fuel nozzle.

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references

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