水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

刘嘉文; 许嘉阳; 张猛; 王金华; 黄佐华

doi:10.7652/xjtuxb202607009

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水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

专题燃烧调控 | 更新时间：2026-07-09

- 水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究
- Effects of Steam Addition on the Swirl Combustion and Emission Characteristics of Cracked Ammonia
- 西安交通大学学报 2026年60卷第7期页码：88-96
- 作者机构：
  
  西安交通大学能源与动力工程学院，710049，西安
- 作者简介：
  
  作者简介：刘嘉文（2000—），男，博士生；
  张猛（通信作者）：男，副教授，博士生导师。
- 基金信息：
  
  国家自然科学基金资助项目(52176130)
- DOI：10.7652/xjtuxb202607009
  中图分类号： TK16
- 收稿：2025-08-04，
  
  纸质出版：2026-07-10
- 稿件说明：
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刘嘉文, 许嘉阳, 张猛, 等. 水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究[J]. 西安交通大学学报, 2026,60(7):88-96.

LIU Jiawen, XU Jiayang, ZHANG Meng, et al. Effects of Steam Addition on the Swirl Combustion and Emission Characteristics of Cracked Ammonia[J]. Journal of Xi'an Jiaotong University, 2026, 60(7): 88-96.
刘嘉文, 许嘉阳, 张猛, 等. 水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究[J]. 西安交通大学学报, 2026,60(7):88-96. DOI： 10.7652/xjtuxb202607009.

LIU Jiawen, XU Jiayang, ZHANG Meng, et al. Effects of Steam Addition on the Swirl Combustion and Emission Characteristics of Cracked Ammonia[J]. Journal of Xi'an Jiaotong University, 2026, 60(7): 88-96. DOI： 10.7652/xjtuxb202607009.

摘要

为明晰水蒸气掺混对于氨裂解气旋流燃烧的影响规律，探究适用于不同裂解率

的水蒸气掺混比例

。采用燃烧与回火极限测量、数码照相、羟基平面激光诱导荧光（OH-PLIF）、粒子图像测速（PIV）以及尾气分析等手段，对预混旋流燃烧器中氨裂解燃烧和污染物排放特性进行了研究，并结合化学反应网络阐明了水蒸气掺混对于氮氧化物（NO

）降低的机理。结果表明：一方面，水蒸气掺混有明显弱化燃烧的作用；相比于

=0的条件，当

=0.1，0.2时，在0.2＜

＜0.4范围内，燃烧当量比范围缩减了21.1%～50.9%，火焰自发光减弱，OH信号降低66%～75%，燃烧尾气中NH

排放提升了18%～368%；另一方面，水蒸气掺混明显增强了燃烧均匀性并降低了NO

排放；

=0.1，0.2时的火焰对称性分别提高了11.8%和56.3%，NO

排放降低了60%～90%。NO

排放降低是燃料型与热力型NO

生成速率降低、De-NO

反应增强共同作用的结果。总体而言，0.2＜

＜0.4时采用

=0.1的水蒸气掺混比例、

＞0.4时采用

=0.2的水蒸气掺混比例是较合理的策略。

Abstract

To clarify how steam addition affects the swirl combustion of cracked ammonia and to identify the optimal steam blending ratios（

）for various cracking rates（

），the combustion and pollutant emission characteristics of cracked ammonia in a premixed swirl combustor were investigated. Experimental methods including combustion and flashback limit measurements，digital imaging，OH plane laser-induced fluorescence（OH-PLIF），particle image velocimetry（PIV），and exhaust gas analysis were employed.Furthermore，the mechanism of nitrogen oxide（NO

）reduction through steam addition was elucidated using a chemical reaction network（CRN）.The results indicate that steam addition significantly weakens the combustion intensity.Compared to

=0，the combustion equivalence ratio is reduced by 21.1%—50.9% for 0.2＜

＜0.4 when

is set to 0.1 and 0.2.Correspondingly，the flame c

hemiluminescence is weakened，the OH signal intensity decreases by 66%—75%，and NH

emissions in the exhaust gas increase by 18%—368%.Conversely，steam addition significantly enhances combustion uniformity and suppresses NO

emissions. Specifically，flame symmetry is improved by 11.8% and 56.3% at

=0.1 and 0.2，respectively，with a 60%—90% reduction in NO

emissions.This NO

reduction is attributed to the combined effects of decreased formation rates of fuel-type and thermal-type NO

，along with the enhancement of De-NO

reactions.Overall，a steam blending ratio of

=0.1 is recommended for 0.2＜

＜0.4，whereas

=0.2 is preferred for

＞0.4.

关键词

Keywords

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