微型摆式发动机内丙烷/空气单次燃烧实验研究  

Experimental Study on Single-cycle Combustion Characteristics of MICSE With Propane/air Mixture

作　　者：蒋利桥[1,3,4] 赵罗光 杜宁 孔文俊 赵黛青[1,3,4] JIANG Li-Qiao;ZHAO Luo-Guang;DU Ning;KONG Wen-Jun;ZHAO Dai-Qing(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beijing 100049,China;CAS Key Laboratory of Renewable Energy,Guangzhou 510640,China;Guangdong Provincial Key Laboratory of New and Renewable Energy,Guangzhou 510640,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院大学,北京100049 [3]中国科学院可再生能源重点实验室,广州510640 [4]广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [5]中国科学院工程热物理研究所,北京100190

出　　处：《工程热物理学报》2021年第8期2155-2161,共7页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2014CB239600);国家自然科学基金(No.51336010)。

摘　　要：在厘米尺度百瓦级微型摆动式发动机样机上进行了单次燃烧实验,燃用当量比φ=0.9~1.2的丙烷/空气预混合气时,对燃烧室内的火焰传播形态、气体动态压力和摆臂运动进行测量,获得了平均火焰传播速度、燃烧持续时间、燃料质量燃尽率、压力和摆臂止点角度随当量比变化的规律特性。结果表明:在进气初始温度300 K、压力0.13 MPa条件下,φ=1.0~1.2工况时,微摆发动机内燃烧为湍流燃烧,燃烧持续时间在5 ms以内,压力峰值高于8个大气压;随当量比增加,燃烧持续时间缩短、平均火焰传播速度加快和压力峰值升高,更接近定容燃烧,有利于提高输出功率。The single-cycle combustion characteristics in a 100-watt-magnitude-output micro international combustion swing engine(MICSE)was studied by experiment with propane/air premixed gas.Under equivalence ratioΦvaried from 0.9 to 1.2,by observing the flame shape of propagating flames,and measuring the pressure of gas in chamber and the movement of swing arm,the burning time of duration,mean flame propagation speed,fuel mass fraction burned,and pressure characteristics were obtained.It was found that the combustion process is turbulent combustion in the MICSE.At initial temperature 300 K and 0.13 MPa pressure of entering premixed gas,the burning time of duration is shorter than 5 ms and the peak pressure value is higher than 0.8 MPa withΦ=1.01.2.With the increase of equivalence ratio,the burning time of duration reduces,the mean flame speed and the peak pressure value increase accordingly,which are helpful to improve the output power of MICSE.

关 键 词：微型摆动式发动机 火焰传播 燃尽率 压力特性 

分 类 号：TK437[动力工程及工程热物理—动力机械及工程]