| Turbulent burning velocity of NH3/H2/air mixtures spherical flames: Effects of differential diffusion and turbulent stretch | |
| Cao, JianBin1,2; Zhao, Nan Nan3; Li, GuoXiu1,2; Li, HongMeng1,2; Zhang GP(张国鹏)4; Yang, Jun5 | |
| Corresponding Author | Li, Guo-Xiu([email protected]) ; Li, Hong-Meng() |
| Source Publication | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 2024-03-15 | |
| Volume | 59Pages:525-534 |
| ISSN | 0360-3199 |
| Abstract | The combustion characteristics of ammonia/hydrogen/air mixtures flame under different equivalent ratios (0.6-1.0), and hydrogen ratio (0.3-0.5) in a wide range of turbulence intensity were investigated. The result shows both differential diffusion and flame chemistry affect the flame morphology and burning velocity of lean and stoichiometric mixtures. With the increase of hydrogen ratio, not only can chemical reaction be enhanced, but also heat and mass diffusion of the flame front can be promoted, thus accelerating flame propagation. In addition, the strong turbulent stretch of the turbulent field gradually plays a dominant role in the development of flame and causes the flame to wrinkle even more. Based on the turbulent flame Reynolds number (ReT,flame), the accelerated propagation processes are analyzed, and further, the influences of differential diffusion and turbulent stretching are taken into account by Le and Ka numbers. The general correlation of turbulent burning velocity (ST) is obtained, and the applicability of the correlation based on Da and Ka for ammonia/hydrogen/air mixtures turbulent combustion is verified. In addition, a unified scaling of turbulent burning velocity (ST) suitable for different equivalent ratios and hydrogen content conditions is obtained by rearranging with Le. |
| Keyword | Ammonia/hydrogen/air mixtures Turbulent expending flame Differential diffusion Turbulent stretch Turbulent burning velocity |
| DOI | 10.1016/j.ijhydene.2024.02.022 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001180325800001 |
| WOS Keyword | LAMINAR ; AMMONIA ; PROPAGATION ; NH3/H-2/AIR ; PRESSURE ; FUEL |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| Funding Project | Fundamental Research Funds for the Central Universities[2022JBZY033] ; National Natural Science Foundation of China[51775526] ; Postdoctoral Fellowship Program of CPSF[GZC20232776] |
| Funding Organization | Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Postdoctoral Fellowship Program of CPSF |
| Classification | 二类/Q1 |
| Ranking | 3+ |
| Contributor | Li, Guo-Xiu ; Li, Hong-Meng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94736 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China; 2.Beijing Jiaotong Univ, Beijing Key Lab New Energy Vehicle Powertrain Tech, Beijing 100044, Peoples R China; 3.Acad Aerosp Prop Technol, Xian 710100, Peoples R China; 4.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China; 5.Changcheng Inst Metrol & Measurement, Beijing 100095, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, JianBin,Zhao, Nan Nan,Li, GuoXiu,et al. Turbulent burning velocity of NH3/H2/air mixtures spherical flames: Effects of differential diffusion and turbulent stretch[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,59:525-534.Rp_Au:Li, Guo-Xiu, Li, Hong-Meng |
| APA | Cao, JianBin,Zhao, Nan Nan,Li, GuoXiu,Li, HongMeng,张国鹏,&Yang, Jun.(2024).Turbulent burning velocity of NH3/H2/air mixtures spherical flames: Effects of differential diffusion and turbulent stretch.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,59,525-534. |
| MLA | Cao, JianBin,et al."Turbulent burning velocity of NH3/H2/air mixtures spherical flames: Effects of differential diffusion and turbulent stretch".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 59(2024):525-534. |
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