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[1]张锋,于涵,尚帅,等.气氧/气甲烷火炬式电点火器燃烧仿真与热试[J].火箭推进,2022,48(04):36-42.
　ZHANG Feng,YU Han,SHANG Shuai,et al.Combustion simulation and hot-fire test of GOX/GCH4 spark torch igniter[J].Journal of Rocket Propulsion,2022,48(04):36-42.

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气氧/气甲烷火炬式电点火器燃烧仿真与热试

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 48 期数: 2022年04期页码: 36-42 栏目: 目次出版日期: 2022-08-21

Title:: Combustion simulation and hot-fire test of GOX/GCH₄ spark torch igniter

文章编号:: 1672-9374(2022)04-0036-07

作者:: 张锋; 于涵; 尚帅; 胡洪波; 连俊恺; (西安航天动力研究所液体火箭发动机技术重点实验室,陕西西安710100)

Author(s):: ZHANG Feng; YU Han; SHANG Shuai; HU Hongbo; LIAN Junkai; (Science and Technology on Liquid Rocket Engine Laboratory, Xian Aerospace Propulsion Institute, Xian 710100, China)

关键词:: 火炬电点火器甲烷点火试验燃烧流场仿真

Keywords:: spark torch igniter methane hot-fire test combustion simulation

分类号:: V435

文献标志码:: A

摘要:: 火炬式电点火是可重复使用液氧甲烷发动机较为可行的点火方式之一。针对气氧/气甲烷火炬式电点火器开展了燃烧流场仿真和点火试验研究。燃烧仿真结果表明,在混合比接近当量混合比时,仿真结果与理论计算结果吻合较好,混合比富燃程度较高时,两者的偏差显著增大。另外,随着混合比的增大,火花塞所处的热环境逐渐恶化,加大了火花塞被烧蚀的风险。点火试验结果表明,点火器能够在混合比1.0～1.6范围内实现可靠点火和稳定工作,室压可以达到预期目标,同时点火器出口火焰具有较好的稳定性和刚度,能够满足燃烧室对点火器的设计要求。

Abstract:: For reusable LOX/methane engines, the spark torch ignition is feasible.The combustion simulation and hot-fire tests were conducted for a GOX/GCH₄ spark torch igniter.The simulation results agreed well with the theoretical results, when the mixture ratio is close to the equivalent mixture ratio, and their deviation increases significantly when the mixture ratio is rather fuel-rich.As mixture ratio increased, the thermal environment of the spark plug is deteriorating, which increases the risk that the spark plug will be burned.The hot-fire test results show that the igniter could achieve reliable ignition and stable operation performance within the range of mixing ratio 1.0-1.6, and the chamber pressure could reach the expected target.Meanwhile, the flame at the exit of the igniter has well stability and stiffness, which meets the design requirements of the combustor for igniter.

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备注/Memo

收稿日期:2022-02-25 修回日期:2022-04-01
基金项目:中国科协青年人才托举工程(2021QNRC001)
作者简介:张锋(1981—),男,硕士,研究员,研究领域为喷雾燃烧技术。

更新日期/Last Update: 1900-01-01