气氧/煤油富燃燃气发生器燃烧试验研究

推进技术 ›› 2016, Vol. 37 ›› Issue (10): 1916-1921.

气氧/煤油富燃燃气发生器燃烧试验研究

张　锋,严　宇,王延涛,李龙飞

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,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,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,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

发布日期:2021-08-15
作者简介:张锋，男，硕士，高级工程师，研究领域为喷雾燃烧技术。

Experimental Investigation on Combustion in a Fuel-Rich

Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China,Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China,Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China and Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究航天煤油的富燃燃烧特性，设计了一个气氧/煤油富燃燃气发生器，并进行了室压范围1 ~ 4MPa、混合比范围0.25 ~ 0.52的燃烧试验，获得了混合比和室压对特征速度、燃气温度及燃烧效率的影响规律。试验结果表明，采用火花塞点火方式可以实现该燃气发生器在高度富燃条件下的可靠点火；在本文研究范围内，试验测得的特征速度和燃气温度明显低于化学平衡理论预测值，燃烧效率介于63.9% ~ 88.3%之间。混合比是特征速度、燃气温度及燃烧效率的最大影响因素，室压的影响远小于混合比。燃烧效率与实际燃气温度与理论燃气温度比值的平方根成正比。

关键词: 富燃燃气发生器；燃烧；点火；热力特性

Abstract: In order to study the fuel-rich combustion characteristics of kerosene，a fuel-rich GOx/kerosene gas generator was designed and combustion tests were conducted，covering the chamber pressure range of 1 ~ 4MPa，and the mixture ratio range of 0.25 ~ 0.52. The effects of mixture ratio and chamber pressure on characteristic velocity，gas temperature and combustion efficiency were obtained. The results show that，the fuel-rich gas generator can be ignited reliably with a spark igniter. The measured characteristic velocity and gas temperature are significantly lower than the chemical equilibrium predictions，and the combustion efficiency varied from 63.9% to 88.3%. It can be concluded that the mixture ratio is the main factor influencing characteristic velocity，gas temperature and combustion efficiency，while the chamber pressure has much less impacts on them. The combustion efficiency is proportional to the square root of the ratio of the measured and predicted gas temperature.

Key words: Fuel-rich gas generator；Combustion；Ignition；Thermal characteristics

张锋,严宇,王延涛,李龙飞. 气氧/煤油富燃燃气发生器燃烧试验研究[J]. 推进技术, 2016, 37(10): 1916-1921.

ZHANG Feng,YAN Yu,WANG Yan-tao,LI Long-fei. Experimental Investigation on Combustion in a Fuel-Rich[J]. Journal of Propulsion Technology, 2016, 37(10): 1916-1921.

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