当量油气比对内燃波转子燃烧特性的影响

李维; 李建中; 巩二磊; 张开晨; 袁丽

doi:10.13224/j.cnki.jasp.2018.09.009

当量油气比对内燃波转子燃烧特性的影响

doi: 10.13224/j.cnki.jasp.2018.09.009

1.
南京航空航天大学能源与动力学院航空发动机热环境与热结构工业和信息化部重点实验室,南京 210016
2.
中国人民解放军陆军工程大学国防工程学院,南京 210007

基金项目: 江苏省研究生培养创新工程（KYLX-0299）；国家自然科学基金（51476077）

计量
- 文章访问数: 746
- HTML浏览量: 3
- PDF量: 923
- 被引次数: 0
出版历程
- 收稿日期: 2017-08-17
- 刊出日期: 2018-09-28

Influence of equivalence fuel/air ratio on combustion characteristics of internal combustion wave rotor

摘要

摘要: 为了研究当量油气比对内燃波转子燃烧特性的影响规律,采用控制变量法,保持内燃波转子转速、混气填充速度不变,通过调节燃料喷射体积流量改变混气的当量油气比。在不同的当量油气比下开展内燃波转子燃烧特性试验。试验结果表明：当量油气比对于内燃波转子燃烧过程影响很大,随着当量油气比的增加，内燃波转子获得的燃烧压力增益增大,在内燃波转子转速为900r/min、混气填充速度为6.741m/s、当量油气比为1.442时,6个工作循环内平均燃烧压力增益达到246.29％,火焰平均传播速度随当量油气比呈类似正态分布,在化学恰当比附近达到最大10.8m/s。当量油气比小于1时，两组工况下火焰锋面呈向下倾斜状传播,当量油气比大于1时，两组工况下火焰锋面呈向上倾斜状传播。
- 内燃波转子 /
- 燃烧特性 /
- 当量油气比 /
- 高速摄影 /
- 离子探针 /
- 增压燃烧
Abstract: In order to study the influence of equivalence fuel/air ratio on combustion characteristics of internal combustion wave rotor, the control variable method was used to keep the combustion wave rotor speed and gas filling speed constant by adjusting the fuel injection volume to change of equivalence fuel/air ratio. The experimental investigations on combustion characteristics of internal combustion wave rotor were conducted under different equivalence fuel/air ratios. The results showed that the equivalence fuel/air ratio had great influence on combustion process of internal combustion wave rotor. As the equivalence fuel/aird ratio increased, the combustion wave rotor obtaining combustion pressure gain increased. When the speed of the internal combustion wave rotor was 900r/min, the gas filling speed was 6.741m/s, and the equivalence fuel/air ratio was 1.442, the average combustion pressure gain of the six working cycles was up to 246.29%. The flame propagation velocity was similar to normal distribution with the change of equivalence fuel/air ratio, which reached a maximum 10.8m/s around the stoichiometric ratio. Under the condition of equivalence fuel/air ratio less than 1, the flame front was inclined downward, and the flame front was inclined upward in the case of the equivalence fuel/air ratio was greater than 1.
- internal combustion wave rotor /
- combustion characteristics /
- equivalence fuel/air ratio /
- high speed photography /
- ion probe /
- pressurized combustion

HTML

参考文献(18)

[1]	AKBARI P,NALIM R,MUELLER N.A review of wave rotor technology and its applications［J］.Journal of Engineering for Gas Turbines and Power,2006,128(4):717-735.
[2]	AKBARI P,NALIM M R.Review of recent developments in wave rotor combustion technology［J］.Journal of Propulsion and Power,2009,25(4):833-844.
[3]	AKBARI P,SZPYNDA E,NALIM M R.Recent developments in wave rotor combustion technology and future perspectives:a progress review［J］.AIAA 2007-5055,2007.
[4]	WELCH G E.Overview of wave-rotor technology for gas turbine engine topping cycles［R］.London:Novel Aero Propulsion Systems International Symposium,The Institution of Mechanical Engineers,2000:2-17.
[5]	AKBARI P,MLLER N.Performance improvement of small gas turbines through use of wave rotor topping cycles［R］.ASME Paper GT2003-38772,2003.
[6]	WIJEYAKULASURIYA S D.Transient and translating gas jet modeling for pressure gain combustion applications［D］.West Lafayette,USA:Purdue University,2011.
[7]	MATSUTOMI Y,HEIN C,LIAN C,et al.Facility development for testing of wave rotor combustion rig［J］.AIAA 2007-5052,2007.
[8]	刘火星,姜冬玲,邹正平.波转子内部非定常流动分析［J］.工程热物理学报,2011,32(1):25-28.LIU Huoxing,JIANG Donglin,ZOU zhengpin.Analysis of unsteady flow in wave rotor ［J］.Journal of Engineering Thermophysics,2011,32(1):25-28.(in Chinese)
[9]	刘火星,谈玲玲,产世宁.内燃波转子发动机循环分析［J］.推进技术,2015,36(3):352-357.LIU Huoxing,TAN Linlin,CHAN Shiing.Analysis of internal combustion wave rotor engine ［J］.Journal of Propulsion Technology,2015,36(3):352-357.(in Chinese)
[10]	刘琛源,刘火星.波转子非定常泄漏流动机理［J］.航空学报,2017,38(5):91-104.LIU Chenyuan,LIU Huoxing.Mechanism of nonsteady leakage flow of wave rotors［J］.Acta Aeronautica et Astronautica Sinica,2017,38(5):91-104.(in Chinese)
[11]	李建中,巩二磊,温泉,等.内燃波转子技术对燃气涡轮发动机性能影响［J］.航空动力学报,2012,27(9):1928-1934.LI Jianzhong,GONG Erlei,WEN Quan,et al.Effect of internal combustion wave rotor technology on performance of gas turbine engine［J］.Journal of Aerospace Power,2012,27(9):1928-1934.(in Chinese)
[12]	巩二磊,李建中,刘博强,等.内燃波转子泄漏及密封问题分析［J］.推进技术,2016,37(10):1952-1957. GONG Erlei,LI Jianzhong,LIU Boqiang,et al.Analysis of leakage and sealing of internal combustion wave rotor ［J］.Journal of Propulsion Technology,2016,37(10):1952-1957.(in Chinese)
[13]	巩二磊,李建中,韩启祥,等.单通道内燃波转子燃烧性能实验［J］.航空动力学报,2016,31(5):1127-1132.GONG Erlei,LI Jianzhong,HAN Qixiang,et al.Experimental study on combustion performance of single channel internal combustion wave rotor ［J］.Journal of Aerospace Power,2016,31(5):1127-1132.(in Chinese)
[14]	SATTELMAYER T.Influence of the combustor aerodynamics on combustion instabilities from equivalence ratio fluctuations［J］.Journal of Engineering for Gas Turbines and Powe,2003,125(1):11-19.
[15]	HA J Y,PARK J S,KANG J H.Effects of the throttle opening ratio and the injection timing of CNG on the combustion characteristics of a DI engine［J］.International Journal of Automotive Technology,2010,11(1):11-17.
[16]	SCHILDBERG H P.Experimental determination of the static equivalent pressures of detonative decompositions of acetylene in long pipes and Chapman-Jouguet pressure ratio［C］∥Proceedings of ASME 2014 Pressure Vessels and Piping Conference.Anaheim,California,USA:American Society of Mechanical Engineers,2014:V005T05A018.1-V005T05A018.13.
[17]	彭忠璟,熊涛,段强领,等.封闭矩形直管内的天然气/空气预混火焰传播［J］.燃烧科学与技术,2016,22(5):419-425.PENG Zhongjing,XIONG Tao,DUAN Qiangling,et al.Propagation of premixed natural gas/air flame in closed rectangular tubes ［J］.Journal of Combustion Science and Technology,2016,22(5):419-425.(in Chinese)
[18]	陈东梁,孙金华,刘义,等.甲烷/空气预混气体火焰的传播特征［J］.爆炸与冲击,2008,28(5):385-390.CHEN Dongliang,SUN Jinhua,LIU Yi,et al.Propagation characteristics of premixed methance air flames ［ J］.Explosion and Shock Waves,2008,28(5):385-390.(in Chinese)