限制域、预混气初始温度对多孔介质表面火焰熄火特性的影响

张龙; 许全宏; 张弛; 林培华; 林宇震

doi:10.13224/j.cnki.jasp.2014.06.014

限制域、预混气初始温度对多孔介质表面火焰熄火特性的影响

doi: 10.13224/j.cnki.jasp.2014.06.014

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实验室, 北京 100191

详细信息

作者简介:
张龙（1989- ），男，山东烟台人，硕士，主要从事航空发动机燃烧室研究.

中图分类号: V23
计量
- 文章访问数: 1360
- HTML浏览量: 0
- PDF量: 895
- 被引次数: 0
出版历程
- 收稿日期: 2013-04-08
- 刊出日期: 2014-06-28

Effect of restricted domain and premixed gas initial temperature on the flame blow-out performance of surface flame on porous media surface

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 为了对基于多孔介质表面火焰的微型燃烧室技术进行优化设计，以甲烷/空气预混气为研究对象，针对不同的限制域、预混气初始温度，开展了多孔介质表面火焰熄火特性实验研究.实验结果表明：在石英玻璃限制域下，多孔介质表面火焰可以维持在0.188~0.436m/s的低预混气速度下，速度升高容易发生推举和吹熄；而限制域的长度未产生影响作用；随着预混气初始温度从293K升高至550K，多孔介质表面火焰的熄火速度极限得以提高.当量比为1.0时，预混气熄火速度从293K的1.176m/s增加至550K的2.678m/s，并存在不同斜率的上升过程，而初始温度对熄火本质没有影响.
- 微型燃烧室 /
- 多孔介质 /
- 限制域 /
- 预混气初始温度 /
- 熄火
Abstract: To optimize a micro combustor based on porous media dome, the influences of the restricted domain and initial temperature of premixed gas on the blow-out performance of surface flame on porous media surface were investigated experimentally. The premixed gas of methane and air was experimental subject. The results show that with the quartz glass restricted domain, surface flame on porous media surface can only be maintained when the speed of the premixed gas is low (0.188-0.436m/s). It is easier to be blown out when the speed of premixed gas is increasing. However, restricted domains with different lengths produce no differences. When the premixed gas initial temperature increases from 293K to 550K, the blow-out velocity of surface flame on porous media surface becomes higher. When the equivalence ratio equals 1.0, the blow-out velocity of initial premixed gas increased from 1.176m/s (293K) to 2.678m/s (550K). There are two rising processes with different slopes. In this condition, initial temperature of premixed gas doesn't yield essentially impact on the blow-out performance.
- micro combustor /
- porous media /
- restricted domain /
- inital temperature of premixed gas /
- blow-out

HTML

参考文献(18)

[1]	JU Yiguang,Maruta K.Microscale combustion:technology development and fundamental research[J].Progress in Energy and Combustion Science,2011,37(1):669-715.
[2]	Peirs J,Reynaerts D,Verplaetsen F A.Microturbine for electric power generation[J].Sensors and Actuators A:Physical,2004,113(1):86-93.
[3]	Waitz I A,Gauba G,Tzeng Y.Combustors for micro gas turbine engines[J].Journal of Fluids Engineering,1998,120(3):109-117.
[4]	李占科,宋笔锋,宋海龙.微型飞行器的研究现状及其关键技术[J].飞行力学,2003,21(4):1-4. LI Zhanke,SONG Bifeng,SONG Hailong.Study on actualities of micro air vehicles and its key technologies[J].Flight Dynamics,2003,21(4):1-4.(in Chinese)
[5]	蒋利桥,赵黛青,汪小憨,等.新型低热损失微燃烧器原型的实验研究[J].热能动力工程,2008,23(1):88-91. JIANG Liqiao,ZHAO Daiqing,WANG Xiaohan,et al.Experimental study of a novel miniature-burner prototype with a low heat loss[J].Journal of Engineering for Thermal Energy and Power,2008,23(1):88-91.(in Chinese)
[6]	London A P,Epstein A H,et al.Microfabrication of a high pressure bipropellant rocket engine[J].Sensor and Actuators,2001,92(1):351-357.
[7]	Mehra A,Waitz I A,Schmidt M A.Combustion tests in the static structure of a 6-wafer micro gas turbine engine.1999 Solid State Sensor and Actuator Workshop Transducers Conference,1999.
[8]	Spadaccini C M,Lee J.High power density silicon combustion system for micro gas turbine engines[J].ASME Paper GT-2002-30082,2002.
[9]	Kim N I,Kato S,Katapla T,et al.Flame stabilization and emission of small Swiss-roll combustors as heaters[J].Combustion and Flame,2005,141(3):229-240.
[10]	王国锋,钟北京.微细通道中甲烷与氧气的预混燃烧[J].燃烧科学与技术,2006,12(2):97-100. WANG Guofeng,ZHONG Beijing.Methane-oxygen premixed combustion in micro-scale tube[J].Journal of Combustion Science and Technology,2006,12(2):97-100.(in Chinese)
[11]	李军伟,钟北京.微细直管燃烧器的散热损失研究[J].中国电机工程学报,2007,27(20):59-64. LI Junwei,ZHONG Beijing.Investigation on heat loss of microtube combustor[J].Proceedings of the CSEE,2007,27(20):59-64.(in Chinese)
[12]	张永生.微尺度燃烧及其热电转化基础研究.杭州:浙江大学,2006. ZHANG Yongsheng.Mechanism study on micro-combustion and thermoelectric transformation.Hangzhou:Zhejiang University,2006.(in Chinese)
[13]	黄志峰.在管内核心区插入多孔介质实现强化传热的实验与数值研究.武汉:华中科技大学,2010. HUANG Zhifeng.Experimental and numerical studies of enhancing heat transfer in a tube by inserting porous media at the core.Wuhan:Huazhong University of Science and Technology,2010.(in Chinese)
[14]	王恩宇,程乐鸣,骆仲泱,等.多孔介质中预混火焰猝熄及自稳定性研究[J].热科学与技术,2005,4(1):58-62. WANG Enyu,CHENG Leming,LUO Zhongyang,et al.Quenching and self-stability of premixed flame in porous media[J].Journal of Thermal Science and Technology,2005,4(1):58-62.(in Chinese)
[15]	Konnov A A,Riemeijer R,Kornilov V N,et al.2D effects in laminar premixed fiames stabilized on a flat flame burner[J].Experimental Thermal and Fluid Science,2013,47(1):1-11.
[16]	Kim K T,Lee D H,Kwon S.Effects of thermal and chemical surface-flame interaction on flame quenching[J].Combustion and Flame,2006,146(1):19-28.
[17]	冯耀勋,王勇,蒋利桥,等.预混气温度及多孔材料特性对多孔介质表面火焰的影响[J].中国电机工程学报,2010,30(32):46-52. FENG Yaoxun,WANG Yong,JIANG Liqiao,et al.Effect of temperature of premixed gas and porous wall characteristic on the flames on porous wall surface[J].Proceedings of the CSEE,2010,30(32):46-52.(in Chinese)
[18]	王勇,蒋利桥,赵黛青,等.多孔介质表面火焰的燃烧特性[J].中国电机工程学报,2009,29(29):67-71. WANG Yong,JIANG Liqiao,ZHAO Daiqing,et al.Combustion characteristics of flames on porous wall surface[J].Proceedings of the CSEE,2009,29(29):67-71.(in Chinese)