Characteristics of rotating gliding arc induced thermal ignition of lean methane-air mixtures

被引:5
作者
Wang, Yu [1 ]
Kong, Chengdong [1 ]
Wu, Xiaojiang [1 ]
Zhang, Zhongxiao [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
来源
APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE | 2023年 / 14卷
关键词
Rotating gliding arc discharge; Plasma-induced ignition; Ignition delay time; Two-staged ignition; Energy accumulation; PLASMA-ASSISTED IGNITION; SPARK-IGNITION; COMBUSTION; FLAME; STABILIZATION; SIMULATIONS;
D O I
10.1016/j.jaecs.2023.100154
中图分类号
O414.1 [热力学];
学科分类号
摘要
The rotating gliding arc discharge (RGA) induced methane-air ignition process under the lean conditions is investigated by the high-speed videography and the numerical simulation, with the focus on the effects of dy-namic discharge characteristics. The experimental and numerical results both indicate that the ignition process in the burner can be divided into two stages, including the waiting stage and the rapid flame propagation stage. The effective ignition time (rburner) including both stages decreases nonlinearly as the effective input ignition power (i.e. Pig/Pcomb) increases, following the exponential law, i.e. rburner=2.98 x 10-9(Pig/Pcomb)-7.299+81.75. It is because of that as the input power is relatively low rburneris governed by the duration of the waiting stage to decrease notably with the increment of the input power. However, as the input power is too large rburner becomes determined by the rapid flame propagation stage to be insensitive to the input power. The rotation frequency of the plasma sources can impact the rburner with that too low or too high frequency is detrimental to the ignition. The flame quenching is less likely to occur with the increase of the plasma volume. Based upon the experimental and numerical results, an RGA-induced ignition mechanism is proposed. It indicates that the two-staged ignition process is largely determined by the waiting stage, where multiple flame kernels are frequently initialized by the RGA to be locally quenched or propagate downstream/upstream with flow. Due to the recirculating flow, the energy released by the plasma and the ignited flame kernels can be accumulated upstream to reduce the local Ka number and enhance the flame propagation at the waiting stage. As Ka is lower than a critical value, the flame kernels can propagate rapidly to complete the ignition.
引用
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页数:12
相关论文
共 41 条
[1]   CRITERIA FOR TURBULENT PROPAGATION LIMITS OF PREMIXED FLAMES [J].
ABDELGAYED, RG ;
BRADLEY, D .
COMBUSTION AND FLAME, 1985, 62 (01) :61-68
[2]  
Barth T., 1989, 27 AER SCI M AM I AE, DOI [10.2514/6.1989-366, DOI 10.2514/6.1989-366]
[3]   SPARK-IGNITION AND THE EARLY STAGES OF TURBULENT FLAME PROPAGATION [J].
BRADLEY, D ;
LUNG, FKK .
COMBUSTION AND FLAME, 1987, 69 (01) :71-93
[4]   A review of prechamber ignition systems as lean combustion technology for SI engines [J].
Castilla Alvarez, Carlos Eduardo ;
Couto, Giselle Elias ;
Roso, Vinicius Ruckert ;
Thiriet, Arthur Braga ;
Valle, Ramon Molina .
APPLIED THERMAL ENGINEERING, 2018, 128 :107-120
[5]   Effects of turbulence on spark ignition in inhomogeneous mixtures: A direct numerical simulation (DNS) study [J].
Chakraborty, Nilanjan ;
Mastorakos, E. ;
Cant, R. S. .
COMBUSTION SCIENCE AND TECHNOLOGY, 2007, 179 (1-2) :293-317
[6]   Laser-Induced Spark Ignition of Premixed Confined Swirled Flames [J].
Cordier, M. ;
Vandel, A. ;
Cabot, G. ;
Renou, B. ;
Boukhalfa, A. M. .
COMBUSTION SCIENCE AND TECHNOLOGY, 2013, 185 (03) :379-407
[7]   Numerically investigation of ignition process in a premixed methane-air swirl configuration [J].
EidiAttarZade, Masoud ;
Tabejamaat, Sadegh ;
Mani, Mahmoud ;
Farshchi, Mohammad .
ENERGY, 2019, 171 :830-841
[8]   A statistical model to predict ignition probability [J].
Esclapez, Lucas ;
Collin-Bastiani, Felix ;
Riber, Eleonore ;
Cuenot, Benedicte .
COMBUSTION AND FLAME, 2021, 225 :180-195
[9]   Multi-channel gliding arc plasma-assisted ignition in a kerosene-fueled model scramjet engine [J].
Feng, Rong ;
Wang, Zhenguo ;
Sun, Mingbo ;
Wang, Hongbo ;
Huang, Yuhui ;
Yang, Yixin ;
Liu, Xu ;
Wang, Chao ;
Tian, Yifu ;
Luo, Tiangang ;
Zhu, Jiajian .
AEROSPACE SCIENCE AND TECHNOLOGY, 2022, 126
[10]   Dynamic characteristics of a gliding arc plasma-assisted ignition in a cavity-based scramjet combustor [J].
Feng, Rong ;
Zhu, Jiajian ;
Wang, Zhenguo ;
Sun, Mingbo ;
Wang, Hongbo ;
Cai, Zun ;
Yan, Wei .
ACTA ASTRONAUTICA, 2020, 171 :238-244