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[1]时婷婷,那生巴图,李春艺,等.掺氢天然气喷射火燃烧特性数值模拟研究*[J].中国安全生产科学技术,2024,20(10):139-145.[doi:10.11731/j.issn.1673-193x.2024.10.019]
　SHI Tingting,NASHENG BATU,LI Chunyi,et al.Numerical simulation study on combustion characteristics of hydrogen-doped natural gas jet flame[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(10):139-145.[doi:10.11731/j.issn.1673-193x.2024.10.019]
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掺氢天然气喷射火燃烧特性数值模拟研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年10期
页码:
139-145
栏目:
职业安全卫生管理与技术
出版日期:
2024-10-30

文章信息/Info

Title:
Numerical simulation study on combustion characteristics of hydrogen-doped natural gas jet flame
文章编号:
1673-193X(2024)-10-0139-07
作者:
时婷婷; 那生巴图; 李春艺; 孙晨; 王奕筝; 李鑫; 吕亮亮; 周睿; 赵瑞昌; 鲁仰辉
（1.国家电投集团科学技术研究院有限公司，北京 102209；
2.内蒙古霍煤鸿骏铝电有限责任公司，内蒙古 通辽 028000；
3.清华大学 安全科学学院，北京 100084；
4.清华大学 公共安全研究院 工程物理系，北京 100084；
5.北京怀恩济科科技有限公司，北京 101407）
Author(s):
SHI Tingting;  NASHENG BATU;  LI Chunyi;  SUN Chen;  WANG Yizheng;  LI Xin;  LYU Liangliang;  ZHOU Rui;  ZHAO Ruichang;  LU Yanghui
(1.State Power Investment Corporation Science and Technology Research Institute Co.,Ltd.,Beijing 102209;
2.Inner Mongolia Huomei Hongjun Aluminum and Electric Co.,Ltd.,Tongliao Inner Mongolia 028000;
3.School of Safety Science,Tsinghua University,Beijing 100084;
4.Institute of Public Safety Research,Department of Engineering Physics,Tsinghua University,Beijing 100084；
5.Beijing HyGnTek Co.,Ltd.,Beijing 101407)
关键词:
掺氢天然气; 喷射火; 数值模拟; 火焰长度; 火焰温度
Keywords:
hydrogen-doped natural gas;  jet flame;  numerical simulation;  flame length;  flame temperature
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2024.10.019
文献标志码:
A
摘要:
为探究掺氢天然气的燃烧特性，基于OpenFOAM开源平台建立掺氢天然气数值模拟方法，采用大涡模拟（LES）模型、有限速率燃烧模型（Pasr）模型和单步反应模型对掺氢天然气喷射火的燃烧过程进行数值模拟。研究结果表明：喷射火的火焰最高温度与掺氢比之间表现为正相关关系，火焰长度与掺氢比之间表现为负相关关系；此外，研究发现随着射流速度增加，轴线上火焰温度高温区域逐渐变远，在同等掺氢比条件下，当射流速度由30 m/s增加至60 m/s时，火焰长度变化区间由1.0~1.251 2 m增加至1.250 2~1.561 2 m，火焰长度与射流速度间表现出正相关关系。研究结果可为实际应用中的燃烧器设计和掺氢天然气泄漏与爆燃事故风险防控提供重要的理论指导。
Abstract:
In order to explore the combustion characteristics of hydrogen-doped natural gas,a numerical simulation method of hydrogen-doped natural gas was established based on the OpenFOAM open source platform,and the combustion process of hydrogen-doped natural gas jet flame was simulated by using the large eddy simulation (LES) model,the finite rate combustion model (Pasr) model and the single-step reaction model.The results show that there is a positive correlation between the maximum flame temperature and the hydrogen doping ratio,and a negative correlation between the flame length and the hydrogen doping ratio.In addition,it is found that with the increase of jet velocity,the high-temperature area of flame temperature on the axis gradually become farther away,and when the jet velocity increases from 30 m/s to 60 m/s under the same hydrogen doping ratio,the variation range of flame length varies from 1.0~1.251 2 m to 1.250 2~1.561 2 m,and there is a positive correlation between flame length and jet velocity.The research results can provide important theoretical guidance for the burner design in practical application and the risk prevention and control of hydrogen-doped natural gas leakage and explosion accidents.

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备注/Memo

备注/Memo:
收稿日期： 2024-05-30
* 基金项目： 内蒙古自治区科技重大专项项目（2021ZD0038）；国家电力投资集团项目（130090100001）
作者简介： 时婷婷，硕士，工程师，主要研究方向为氢能源安全风险评估。
通信作者： 周睿，博士，副研究员，主要研究方向为灾害流体动力学。
更新日期/Last Update: 2024-10-31