Experimental Investigations on Combustion Characteristics of a Vaporized-Flameholder Pilot Combustor in TBCC Engine

Journal of Propulsion Technology ›› 2016, Vol. 37 ›› Issue (4): 698-705.

• Combustion , Heat and Mass Transfer • Previous Articles Next Articles

Experimental Investigations on Combustion Characteristics of a Vaporized-Flameholder Pilot Combustor in TBCC Engine

Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China and Science and Technology on Scramjet Laboratory，Beijing Power Machinery Institute，Beijing 100074，China

Published:2021-08-15

基于蒸发式值班稳焰的涡轮基组合燃烧室燃烧性能研究

朱志新¹,何小民¹,宋耀宇¹,朱一骁¹,秦伟林²

南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,北京动力机械研究所高超声速冲压发动机技术重点实验室，北京 100074

作者简介:朱志新，男，博士生，研究领域为航空发动机燃烧室和燃烧理论。
基金资助:
江苏省普通高校研究生科研创新计划资助项目(CXZZ13_0179)。

Abstract

Abstract: Experiments were conducted on a combined-combustor of the turbine based combined cycle engine. First a model combustor rig and experimental system were designed，and then experiments were conducted to study the combustion characteristics under different inlet velocity coefficient，inlet temperature and fuel/air ratio(FAR) for different operating mode. The test results show that the ignition FAR，lean blowout FAR and combustion efficiency increase with the bypass duct inlet velocity coefficient increasing from 0.25 to 0.40. The ignition FAR and lean blowout FAR decrease and combustion efficiency increases when the bypass duct inlet temperature increasing from 343K to 473K. Similarly the combustion efficiency increases when the turbo duct inlet velocity coefficient increases. The minimum ignition and lean blowout FAR obtained from the experiment is 0.0045 and 0.002，respectively.

Key words: Turbine based combined cycle；Combined-combustor；Flame holder；Experiment；Combustion characteristic

摘要： 对涡轮基组合循环发动机(Turbine based combined cycle，TBCC)组合燃烧室进行了试验研究。研究首先设计了组合燃烧室模型及相关的试验系统，并在此基础上开展了不同工作模式下，进口速度系数、温度和油气比对燃烧室燃烧性能影响的试验研究。研究结果表明:随着外涵进口速度系数(λ=0.25～0.40)的增加，点火总油气比、贫油熄火总油气比均增加，燃烧效率提高；随着外涵进口温度(343～473K)的增加，点火总油气比和贫油熄火总油气比减小，燃烧效率提高；随内涵进口速度系数的增加，燃烧效率提高。试验中获得最小点火总油气比为0.0045，最小贫油熄火总油气比为0.002。

关键词: 涡轮基组合循环；组合燃烧室；火焰稳定器；试验；燃烧性能

ZHU Zhi-xin¹,HE Xiao-min¹,Song Yao-yu¹,ZHU Yi-xiao¹,QIN Wei-lin². Experimental Investigations on Combustion Characteristics of a Vaporized-Flameholder Pilot Combustor in TBCC Engine[J]. Journal of Propulsion Technology, 2016, 37(4): 698-705.

朱志新,何小民,宋耀宇,朱一骁,秦伟林. 基于蒸发式值班稳焰的涡轮基组合燃烧室燃烧性能研究[J]. 推进技术, 2016, 37(4): 698-705.

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Experimental Investigations on Combustion Characteristics of a Vaporized-Flameholder Pilot Combustor in TBCC Engine

基于蒸发式值班稳焰的涡轮基组合燃烧室燃烧性能研究

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