中心分级燃烧室进场工况燃油分级方式试验研究

推进技术 ›› 2014, Vol. 35 ›› Issue (1): 77-86.

中心分级燃烧室进场工况燃油分级方式试验研究

付镇柏,林宇震,张弛,许全宏

北京航空航天大学能源与动力工程学院/航空发动机气动热力国家级重点试验室,北京 100191;北京航空航天大学能源与动力工程学院/航空发动机气动热力国家级重点试验室,北京 100191;北京航空航天大学能源与动力工程学院/航空发动机气动热力国家级重点试验室,北京 100191;北京航空航天大学能源与动力工程学院/航空发动机气动热力国家级重点试验室,北京 100191

发布日期:2021-08-15
作者简介:付镇柏(1987—),男,博士生,研究领域为航空发动机燃烧。E-mail:fzb2sdu@yahoo.com.cn

Experimental Investigation on Fuel-Staging Mode of Internally-Staged Combustor under Approach Condition

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, College of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 10191,China;National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, College of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 10191,China;National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, College of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 10191,China;National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, College of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 10191,China

Published:2021-08-15

摘要/Abstract

摘要： 设计了一种贫头部中心分级燃烧室,在大推力发动机进场工况参数下,采用单头部矩形试验件,进行了污染排放测试试验,对比了预燃级单独供油、主预两级共同供油、全环主燃级周向分级三种方式的燃烧效率、氮氧化物(NO_x)和冒烟(Smoke)排放。试验结果表明,进场工况下,设计的中心分级燃烧室采用预燃级单独供油方式时具有较高的燃烧效率,但NO_x排放指数也较高,超过了指标要求；主预两级共同供油方式可获得较低的NO_x排放,但燃烧效率难以达到指标；在合理的燃油分配比例下,全环主燃级周向分级方式燃烧效率和NO_x排放能够同时满足指标要求；3种燃油分级方式下,冒烟数都远低于指标要求。 

关键词: 航空发动机;中心分级燃烧室;进场工况;燃油分级;燃烧效率 

Abstract: A lean-burn internally-staged combustor was designed and the emission experiments using a single module rectangular combustor were operated under the approach condition of a certain large aero-engine. Three fuel-staging modes including the pilot-fueled only mode, the two stages-fueled together mode and the main-fueled circumferentially-staged in the annular combustor mode were investigated experimentally on combustion efficiency, NO_x and smoke emission. The experimental results indicate that for this designed internally-staged combustor the combustion efficiency is high with the high NO_x emission index (EI) exceeding the target when applying the pilot-fueled only mode. The NO_x EI is rather low when applying the two stages-fueled together mode with the combustion efficiency being difficult to reach the target. The combustion efficiency and NO_x EI are satisfied for the targets simultaneously when applying the main-fueled circumferentially-staged in the annular combustor mode with the proper fuel-staging proportion. The smoke number (SN) is far below the limited index for all the three modes.

Key words: Aero-engine; Internally-staged combustor; Approach condition; Fuel-staging; Combustion efficiency

付镇柏,林宇震,张弛,许全宏. 中心分级燃烧室进场工况燃油分级方式试验研究[J]. 推进技术, 2014, 35(1): 77-86.

FU Zhen-bo,LIN Yu-zhen,ZHANG Chi,XU Quan-hong. Experimental Investigation on Fuel-Staging Mode of Internally-Staged Combustor under Approach Condition[J]. Journal of Propulsion Technology, 2014, 35(1): 77-86.

参考文献

[1] Birch N T.2020Vision:the Prospects for Large Civil Aircraft Propulsion[R].ICAS 2000-1-1-1.
[2] 彭云晖, 许全宏, 张弛, 等.我国大飞机发动机低污染燃烧室发展考虑[C].北京:中国航空学会2007年学术年会, 2007.
[3] International Civil Aviation Organization.International Standards and Recommended Practices Environmental Protection Annex 16to the Cenvention on International Civil Aviation Volume Ⅱ Aviation Engine Emissions[C].Montreal:Third edition,2008.
[4] 林宇震, 许全宏, 刘高恩.燃气轮机燃烧室[M].北京:国防工业出版社, 2008.
[5] Report of the independent experts to CAEP8on the second NOx review & long term technology goals[R].LONDON, MARCH 2009.
[6] Michael J Foust, Doug Thomsen.Development of the GE Aviation Low Emission TAPS Combustor for Next Generation Aircraft Engines[R].AIAA 2012-0936.
[7] Lazik W, Doerr T, Bake B.Low NOx Combustor Development for the Engine3E Core Engine Demonstrator[R].ISABE 2007-1190.
[8] Mongia H C.TAPS –A 4th Generation Propulsion Combustor Technology for Low Emissions[R].AIAA 2003-2657.
[9] Lazik W, Doerr T, Bake S, et al.Development of Lean-Burn Low-NO_x Combustion Technology at Rolls-Royce Deutschland[R].ASME 2008-GT-51115.
[10] Yamamoto T, Shimodaira K, Krosawa Y, et al.Investigations of a Staged Fuel Atomizer for Aero-Engines by multi-Sector Combustor Test[R].ASME 2010-GT-23206.
[11] Anon.ICAO Aircraft Engine Emissions Databank[EB/OL].http:∥www.caa.co.uk.2005.
[12] 颜应文, 李红红, 赵坚行, 等.双环预混旋流低污染燃烧室数值模拟[J].航空动力学报, 2009,4(9):1923-1929.
[13] 刘富强,杨金虎,刘存喜, 等.燃油分级多点喷射低污染燃烧室的化学反应网络模型分析[J].工程热物理学报, 2012,3(3):537-541.
[14] 颜应文, 徐榕, 邓远灏, 等.贫油预混预蒸发燃烧室头部流场研究[J].航空学报, 2012,3(6):965-976.
[15] 徐榕, 赵坚行, 刘勇, 等.TAPS/MLDI低污染燃烧室油雾特性[J].航空动力学报, 2012,7(11):2421-2428.
[16] FU Zhenbo, LI Jibao, LIN Yuzhen.Experimental Investigation on Ignition Performance of LESS Combustor[R].ASME 2011-GT-45786.
[17] 航空航天工业部.高效节能发动机文集第四分册[M].北京:航空工业出版社, 1991.
[18] 黄勇, 林宇震, 樊未军, 等.燃烧与燃烧室[M].北京:北京航空航天大学出版社, 2009.