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[1]李俊磊,张成龙,张永海,等.贫/富氧氢气燃烧敏感性分析及仿真模拟[J].油气储运,2023,42(08):929-936.[doi:10.6047/j.issn.1000-8241.2023.08.009]
　LI Junlei,ZHANG Chenglong,ZHANG Yonghai,et al.Sensitivity analysis and simulation of hydrogen combustion at oxygen-lean/rich concentrations[J].Oil & Gas Storage and Transportation,2023,42(08):929-936.[doi:10.6047/j.issn.1000-8241.2023.08.009]
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贫/富氧氢气燃烧敏感性分析及仿真模拟

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 42 期数: 2023年08期 页码: 929-936 栏目: 工艺与工程 出版日期: 2023-08-25
Title:
Sensitivity analysis and simulation of hydrogen combustion at oxygen-lean/rich concentrations
文章编号:
1000-8241（2023）08-0929-08
作者:
李俊磊1; 张成龙1; 张永海1; 周文静1; 魏进家1; 2
1.西安交通大学化学工程与技术学院；2.西安交通大学·动力工程多相流国家重点实验室
Author(s):
LI Junlei1; 3; 2; ZHANG Chenglong1; 3; 2; ZHANG Yonghai1; 3; 2; ZHOU Wenjing1; 3; 2; WEI Jinjia1; 3; 2; 3; 2; 4
1.School of Chemical Engineering and Technology, Xi'an Jiaotong University; 2.Xi'an Jiaotong University//State Key Laboratory of Multiphase Flow in Power Engineering
关键词:
氢能; 贫富氧燃烧; 射流燃烧器; 空燃比; 敏感性分析; 氮氧化物生成
Keywords:
hydrogen energy;  oxygen-lean/rich combustion;  jet burner;  air-fuel ratio;  sensitivity analysis;  NOx production
分类号:
TQ038
DOI:
10.6047/j.issn.1000-8241.2023.08.009
文献标志码:
A
摘要:
氢能作为新兴的能源形式，其燃烧应用技术距离市场化仍有一定差距。射流燃烧器作为一种高效的燃烧设备，能够有效提升能源热利用率。针对射流燃烧器内氢气的燃烧过程开展仿真模拟，分析不同供氧比例下的火焰特征，对比不同空燃比工况下燃烧温度、火焰高度形貌、污染物浓度的变化。仿真所用反应机理选用包含10种组分的21步反应的氢气燃烧机理，对纯氢燃烧关键组分开展了敏感性分析，并进行了有限元模拟仿真。结果表明：氢气燃烧温度峰值随供氧量减少而降低；当空燃比低于1时，火焰高度随供氧量的减少而显著降低；当空燃比大于1后，火焰高度逐渐趋于稳定；污染物氮氧化物的生成总量随供氧比增加而增大，但其浓度分布会受火焰形貌等其他因素的影响。该研究从提高热效率的角度给出了射流燃烧器的适宜空燃比范围，以期为氢能燃烧利用提供借鉴。（图10，表2，参24）
Abstract:
For hydrogen as a new form of energy, there is still a certain gap in the marketization of its application technologies such as combustion. As a kind of efficient combustion equipment, the jet burner can effectively improve the thermal utilization rate of energy. In this paper, the combustion process of hydrogen in the jet burner was simulated, the flame characteristics under different oxygen supply ratios were analyzed, and the changes in combustion temperature, flame height and morphology, and pollutant concentration under different air-fuel ratio conditions were compared. Then, the 21-step hydrogen combustion mechanism with 10 components was adopted in the simulation, and thus sensitivity analysis and finite element simulation were performed for the key components in pure hydrogen combustion. The results show that: the peak value of hydrogen combustion temperature decreases with the decreasing of oxygen supply. The flame height decreases significantly with the decreasing of the oxygen supply in case of the air-fuel ratio lower than 1, and the flame height gradually tends to be stable when the air-fuel ratio is greater than 1. Besides, the total amount of the pollutant NOx produced increases with the increase in oxygen supply ratio, but its concentration distribution will be affected by other factors such as flame morphology. In this research, a suitable range of air-fuel ratio was proposed for the jet burner from the perspective of improving the thermal efficiency, so as to provide a reference for the combustion utilization of hydrogen energy. (10 Figures, 2 Tables, 24 References)

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备注/Memo

李俊磊，男，1999年生，在读博士生，2016年毕业于西安交通大学过程装备与控制专业，现主要从事掺氢天然气安全事故特征和演化规律研究。地址：陕西省西安市西咸新区沣西新城中国西部科技创新港，710049。电话：15891718897。Email：lijunlei1919@163.com
通信作者：张永海，男，1986年生，教授，博士生导师，2014年博士毕业于西安交通大学动力工程及工程热物理专业，现主要从事氢能安全及传递过程强化相关研究。地址：陕西省西安市西咸新区沣西新城中国西部科技创新港，710049。电话：15249227530。Email：zyh002@mail.xjtu.edu.cn
基金项目：国家重点研发计划“氢能技术”重点专项“中低压纯氢与掺氢燃气管道输送及其应用关键技术”，2021YFB4001603。
（收稿日期：2023-05-24；修回日期：2023-06-30；编辑：刘朝阳）

更新日期/Last Update: 2023-08-25