Numerical simulation and spray model development of liquid ammonia injection under diesel-engine conditions
文献类型：期刊论文
| 作者 | Zhang, Junqing1,2; Chen, Danan1,2; Lai, Shini1,2; Li, Jun1,2,3; Huang, Hongyu1,2; Kobayashi, Noriyuki4 |
| 刊名 | ENERGY
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 294页码:16 |
| 关键词 | Large eddy simulation Spray characteristics Liquid ammonia injection Diesel engine 0D spray model |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2024.130833 |
| 通讯作者 | Li, Jun(lijun@ms.giec.ac.cn) |
| 英文摘要 | Ammonia is regarded as a promising alternative fuel in internal combustion engine for its potential to reduce carbon emissions. Injection process of liquid ammonia will affect air-fuel mixture distribution and therefore combustion efficiency and NOx emissions. However, the experimental studies of liquid ammonia injection under engine conditions are limited, and the key impact factors of spray evolution are still unclear. This study aims to evaluate the applicability of numerical models for liquid ammonia spray, and numerically investigate spray characteristics under diesel-engine conditions (ambient temperature > 800K, ambient pressure > 2 MPa). Large eddy simulation coupled with Lagrangian particle tracking method were conducted, and the results show that the non equilibrium - Frossling phase change model coupled with Schiller-Naumann drag model can provide a good prediction of spray penetration. Liquid penetration increases with ambient pressure decreasing; vapor penetration increases with ambient density decreasing, but insensitive to ambient temperature. Temperature - mixture fraction distribution is sensitive to ambient temperature and superheat degree. Besides, a three-stage 0D model of spray tip penetration under diesel-engine conditions is developed firstly, which can reflect the key impact factors of ammonia spray evolution and provide theoretical support to optimize fuel injection strategy of liquid ammonia-fueled engines. |
| WOS关键词 | ATOMIZATION MODELS ; DRAG COEFFICIENT ; COMBUSTION ; VELOCITY ; AIR |
| 资助项目 | Guangdong Basic and Applied Basic Research Foundation[2022B1515120047] ; Science and tech- nology innovation project for carbon peak and carbon neutrality of Jiangxi Carbon Neutralization Research Center[2022JXST03] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001204210900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Guangdong Basic and Applied Basic Research Foundation ; Science and tech- nology innovation project for carbon peak and carbon neutrality of Jiangxi Carbon Neutralization Research Center |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41458]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Jun |
| 作者单位 | 1.Univ Sci & Technol China, Sch Energy Sci & Engn, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Jiangxi Carbon Neutralizat Res Ctr, Nanchang 330096, Jiangxi, Peoples R China 4.Nagoya Univ, Dept Chem Syst Engn, Nagoya, Aichi 4648603, Japan |
| 推荐引用方式 GB/T 7714 | Zhang, Junqing,Chen, Danan,Lai, Shini,et al. Numerical simulation and spray model development of liquid ammonia injection under diesel-engine conditions[J]. ENERGY,2024,294:16. |
| APA | Zhang, Junqing,Chen, Danan,Lai, Shini,Li, Jun,Huang, Hongyu,&Kobayashi, Noriyuki.(2024).Numerical simulation and spray model development of liquid ammonia injection under diesel-engine conditions.ENERGY,294,16. |
| MLA | Zhang, Junqing,et al."Numerical simulation and spray model development of liquid ammonia injection under diesel-engine conditions".ENERGY 294(2024):16. |
入库方式： OAI收割
来源：广州能源研究所
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