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旋流器气量分配对全环燃烧室排放的影响

王志凯 龚卡 罗莲军 张险 陈盛 范玮

王志凯, 龚卡, 罗莲军, 等. 旋流器气量分配对全环燃烧室排放的影响[J]. 航空动力学报, 2024, 39(1):20230156 doi: 10.13224/j.cnki.jasp.20230156
引用本文: 王志凯, 龚卡, 罗莲军, 等. 旋流器气量分配对全环燃烧室排放的影响[J]. 航空动力学报, 2024, 39(1):20230156 doi: 10.13224/j.cnki.jasp.20230156
WANG Zhikai, GONG Ka, LUO Lianjun, et al. Effects of swirler airflow split on emissions of full annular combustor[J]. Journal of Aerospace Power, 2024, 39(1):20230156 doi: 10.13224/j.cnki.jasp.20230156
Citation: WANG Zhikai, GONG Ka, LUO Lianjun, et al. Effects of swirler airflow split on emissions of full annular combustor[J]. Journal of Aerospace Power, 2024, 39(1):20230156 doi: 10.13224/j.cnki.jasp.20230156

旋流器气量分配对全环燃烧室排放的影响

doi: 10.13224/j.cnki.jasp.20230156
详细信息
    作者简介:

    王志凯(1989-),男,高级工程师,博士生,研究领域为航空发动机燃烧室设计。E-mail:nhwzk12@126.com

  • 中图分类号: V231.1

Effects of swirler airflow split on emissions of full annular combustor

  • 摘要:

    为研究一、二级旋流器气量分配对燃烧室排放性能的影响,在总气量恒定条件下,针对配装气量比分别为0.85和1.1两种方案双级轴向旋流器的全环燃烧室开展了地面慢车、空中慢车和起飞状态下的排放试验。结果表明:气量比从0.85增加到1.1,空中慢车和起飞状态氮氧化物(NOx)排放分别降低33%~52%和14%~38%,地面慢车状态CO和未燃碳氢(UHC)排放分别降低23%~49%和32%~36%。地面慢车状态两方案旋流器对应的NOx排放差异不大,且排放值均较低。CO和UHC排放主要集中在地面慢车状态,随着状态增大,CO和UHC排放量逐渐降低,且空中慢车和起飞状态对应的CO和UHC排放量差异不大。在本文试验范围内,全环燃烧室CO排放指数随着NOx排放指数的增加呈现幂函数下降,随着UHC排放指数的增加呈现对数上升。

     

  • 图 1  双级轴向旋流器示意图

    Figure 1.  Schematic of dual-axial swirler

    图 2  试验系统示意图

    1、2、3 阀门;4、6 标准流量喷嘴;5 电加温器;7 全环试验件;8 蝶阀;9 换热器;10 消声塔。

    Figure 2.  Schematic of experimental system

    图 3  进口截面测点分布

    Figure 3.  Test points of inlet section

    图 4  出口截面测点分布

    Figure 4.  Test points of outlet section

    图 5  总压损失特性曲线

    Figure 5.  Character curve of total pressure loss

    图 6  NOx排放对比

    Figure 6.  Comparison of NOx emission

    图 7  CO排放对比

    Figure 7.  Comparison of CO emission

    图 8  UHC排放对比

    Figure 8.  Comparison of UHC emission

    图 9  NOx的排放指数和CO的排放指数的关系

    Figure 9.  Relationship between emission indexes of NOx and CO

    图 10  UHC的排放指数和CO的排放指数的关系

    Figure 10.  Relationship between emission indexes of UHC and CO

    图 11  油气比对比验证

    Figure 11.  Comparison and validation of fuel air ratio

    表  1  试验工况

    Table  1.   Test conditions

    工况油气比
    地面慢车0.01,0.015
    空中慢车0.014,0.02,0.025
    起飞0.015,0.02,0.025
    下载: 导出CSV

    表  2  参数测试精度

    Table  2.   Parameters measurement accuracy

    参数测试精度
    $\dot m_{\rm{a3}}$/(kg/s)±1%
    $\dot m_{{\rm{f}}} $/(kg/s)±0.5%
    pt3/MPa±0.5%
    pt4/MPa±0.5%
    Tt3/K±1.5 K
    Tt4/K±1.5 K
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-03-14
  • 网络出版日期:  2023-09-28

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