Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition | |
Pan, Jiaying1; He, Yu1; Li, Tao2 ; Wei, Haiqiao1; Wang, Lei1; Shu, Gequn1
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| 2021-04-01 | |
| Source Publication | ENERGIES
 |
| Volume | 14Issue:8Pages:17 |
| Corresponding Author | Pan, Jiaying(jypan@tju.edu.cn) |
| Abstract | Turbulent jet ignition technology can significantly improve lean combustion stability and suppress engine knocking. However, the narrow jet channel between the pre-chamber and the main chamber leads to some difficulties in heat exchange, which significantly affects combustion performance and mechanical component lifetime. To clarify the effect of temperature conditions on combustion evolutions of turbulent jet ignition, direct numerical simulations with detailed chemical kinetics were employed under engine-relevant conditions. The flame propagation in the pre-chamber and the early-stage turbulent jet ignition in the main chamber were investigated. The results show that depending on temperature conditions, two types of flame configuration can be identified in the main chamber, i.e., the normal turbulent jet flame propagation and the spherical flame propagation, and the latter is closely associated with pressure wave disturbance. Under low-temperature conditions, the cold jet stoichiometric mixtures and the vortexes induced by the jet flow determine the early-stage flame development in the main chamber. Under intermediate temperature conditions, pre-flame heat release and leading pressure waves are induced in the jet channel, which can be regarded as a transition of different combustion modes. Whereas under high-temperature conditions, irregular auto-ignition events start to occur, and spherical flame fronts are induced in the main chamber, behaving faster flame propagation. |
| Keyword | turbulent jet ignition ignition characteristics temperature conditions combustion modes pressure wave |
| DOI | 10.3390/en14082226 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2017YFE0102800] ; National Natural Science Foundation of China[52076149] ; National Natural Science Foundation of China[51825603] |
| WOS Research Area | Energy & Fuels |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000644127000001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32998 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Pan, Jiaying |
| Affiliation | 1.Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Pan, Jiaying,He, Yu,Li, Tao,et al. Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition[J]. ENERGIES,2021,14(8):17. |
| APA | Pan, Jiaying,He, Yu,Li, Tao,Wei, Haiqiao,Wang, Lei,&Shu, Gequn.(2021).Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition.ENERGIES,14(8),17. |
| MLA | Pan, Jiaying,et al."Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition".ENERGIES 14.8(2021):17. |
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