航空宇航工程

航空发动机燃油逆向喷射MILD燃烧方式研究

展开
  • 沈阳航空航天大学 a.航空航天工程学部( 院 );b.能源与环境学院, 沈阳110136
眭晓蔚( 1988- ), 男, 山西阳泉人, 硕士研究生, 主要研究方向:航空发动机燃烧室设计及分析, E-mail:suixiaoweimaidi@126.com;王力军( 1963-), 男, 辽宁开原人, 副教授, 主要研究方向:航空发动机燃烧室设计及分析, E-mail:wlj0803@163.com。

收稿日期: 2013-06-28

基金资助

航空科学基金资助项目(项目编号:20112B54005)

Research on the aeroengine MILD combustion mode of fuel reverse injection

Expand
  • a.Faculty of Aerospace Engineering;b.College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136

Received date: 2013-06-28

摘要

燃油逆向喷射改变了传统航空发动机的燃烧室头部喷射燃油和旋流稳定燃烧的燃烧组织方式, 它利用高温燃气回流区内的高温低氧条件, 实现稳定高效超低污染的MILD燃烧模式。通过改变逆向燃油喷嘴不同喷射位置和不同喷射角度, 模拟分析了对MILD燃烧方式和燃烧性能的影响。当喷嘴取合适的位置和喷射角度等燃烧参数时, 能实现基于来流空气温度的MILD燃烧方式, 以及高品质出口温度场、超低NOx排放等优良燃烧性能。研究结果对新概念航空发动机设计具有参考价值。

本文引用格式

眭晓蔚, 王力军 . 航空发动机燃油逆向喷射MILD燃烧方式研究[J]. 沈阳航空航天大学学报, 2013 , 30(5) : 10 -15 . DOI: 10.3969/j.issn.2095-1248.2013.05.003

Abstract

Fuel reverse injection has changed the traditional aero-engine combustion methods of fuel injection at combustor head and swirl combustion stability, which utilizes high temperature and lowers oxygen content conditions within flue gas recirculation zone to achieve MILD combustion mode of stabilization, high efficiency and ultra-low pollute emissions.This paper simulated and analyzed the effects on MILD combustion mode and combustion performances by changing the nozzle locations and angles of reverse injection.When the combustion parameters of nozzle location and angle are appropriate, MILD combustion mode based on the inlet air temperature and excellent combustion performances of high quality outlet temperature fields, ultra-low NOx emission can be achieved.All results correspond to other similar findings and have reference values to new concept aeroengine design.

参考文献

[1]J.A Wunning, J.G Wunning.Flameless oxidation to reduce thermal NO formation[J].Prog.Energy Combust.Sci, 1997, 23(1):81-94.
[2]Erwann Guillou, Michael Cornwell, Ephraim Gutmark.Application of flameless combustion for gas turbine engines[C].47th AIAA Aerospace Sciences Meeting, Orlando, FL.AIAA Paper, 2009(25):1-10.
[3]L Rainer, M Wolfgang, A Manfred.FLOX combustion at high pressure with different fuel compositions[J].Journal of Engineering for Gas Turbine and Power, 29(2):9-13.
[4]R K Jochen, S Thomas.Lean blowout limit and NOx production of a premixed sub-ppm NOx burner with periodic recirculation of combustion products[J].Journal of Engineering for Gas Turbines and Power(Transactions of the ASME), 2006, 128(2):247-254.
[5]Melo M J, Sousa M J M, Costa M, et al.Flow and combustion characteristics of a low-NOx combustor model for gas turbines[J].Journal of Propulsion and Power, 2011, 27(6):1212-1217.
[6]李鹏飞, 米建春, B B DALLY, 等.MILD燃烧的最新进展和发展趋势[J].中国科学:技术科学, 2011, 41(2):135-149.
[7]Levy Y, Rao G A, Sherbaum V.Chemical kinetic and thermodynamics of flameless combustion methodology for gas turbine combustors[C].43rd A1AA/ASME/SAE/ASEE:Joint Propulsion Conference & Exhibit 8-11, Cincinnati, 2007(5629):1-18.
[8]刘传, 林宇震, 刘高恩, 等.低压条件下复合式多级旋流杯燃烧室燃烧效率研究[J].航空动力学报, 2004, 19(5):650-655.
文章导航

/