| 新一代航空发动机燃烧室 |
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| 引用本文： | 金如山,党进,刘富强.新一代航空发动机燃烧室[J].工程热物理学报,2022,43(2):543-552. |
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| 作者姓名： | 金如山 党进 刘富强 |
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| 作者单位： | 美国加利福尼亚州AIAA Associate Follow,美国加利福尼亚州Fossil Energy Research Corp.,中国科学院工程热物理研究所轻型动力实验室,北京100190;中国科学院大学,北京100049 |
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| 摘 要： | 针对新一代高油气比(0.051及以上)航空发动机燃烧室,本文提出头部采用化学恰当比直接混合燃烧设计方案.对于新一代高压比(70及以上)低排放民用航空发动机燃烧室,由于其自着火延迟时间极短,因此采用贫油直接混合燃烧,而不能采用预混合预蒸发燃烧.本文提出了一种贫油直接混合低排放燃烧室方案,其燃油空气模由简单的压力雾化喷嘴和...
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| 关 键 词： | 低排放燃烧室 高油气比燃烧室 燃油空气模 火焰筒冷却 贫油直接混合燃烧 慢车贫油熄火 |
New Generation Aero-engine Combustor |
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| CHIN Ju-Shan,DANG Jin,LIU Fu-Qiang.New Generation Aero-engine Combustor[J].Journal of Engineering Thermophysics,2022,43(2):543-552. |
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| Authors: | CHIN Ju-Shan DANG Jin LIU Fu-Qiang |
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| Institution: | (AIAA Associate Fellow,Laguna Woods,California 92637,USA;Fossil Energy Research Corp.,Laguna Hills,California 92653,USA;Laboratory of Light-duty Gas-turbine,Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | New generation military aero-combustor is high(FAR)(0.051 and above)combustor.It is stoichiometric direct mixing combustion.Fuel air module design configuration is proposed.New generation civil aero combustor is high pressure(such as pressure ratio 70 and above)low emissions combustor.Because of extremely short autoignition delay time,it cannot be premixed combustion,must be lean direct mixing(LDM)combustion.By combination of simple pressure swirl fuel nozzle and axial air swirler as basic fuel air combustion design,with the whole combustor the configuration,with fuel staging,the emissions are good without combustion instability problem.Both combustors use very high combustion air fraction,thus there is an idle lean blow out(LBO)issue.Design approaches to solve idle LBO problem are proposed for both type combustors.New liner cooling design is presented for outer liner and inner liner.The results of this study will provide guideline for the development of next generation aero combustors. |
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| Keywords: | low emissions combustor high FAR combustor fuel air module design liner cooling design lean direct mixing combustion idle LBO |
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