A simulation method for the dissolution construction of salt cavern energy storage with the interface angle considered
文献类型：期刊论文
| 作者 | Ling, Daosheng; Zhu, Song; Zheng, Jianjing; Xu, Zijun; Zhao, Yunsong; Chen, Liuping; Shi, Xilin; Li, Jinlong |
| 刊名 | ENERGY
 |
| 出版日期 | 2023-01-15 |
| 卷号 | 263 |
| ISSN号 | 0360-5442 |
| 关键词 | Salt cavern energy storage Rock salt dissolution rate Convective mass transfer Interface angle Coupling simulation |
| 英文摘要 | The solution mining of a salt cavern for energy storage is highly affected by the interface angle, especially in a horizontal cavern, which has drawn much attention recently. Current empirical models assume the dissolution rates at different angles relate to that of a vertical interface. At the same time, the actual salt cavern design practice has found different conclusions. In this paper, a coupled convection-mass transfer model of rock salt dissolution is developed employing COMSOL software, and the dissolution of salt surfaces with 9 different angles is simulated. In the simulation, the quantitative dissolution rates are consistent with the indoor tests in the literature. The interface angle indirectly influences the dissolution rate through the flow pattern and rate. With larger interface angles, the gravity-driven natural convection gets more intense (no flow at 0 degrees, stream at 45 degrees, waterfall at 90 degrees, raindrop mixing with stream above 90 degrees, totally raindrop at 1801, which means the mass transfer near the boundary gets faster. Thus, the concentration near the boundary decreases, the concentration gradient increases, and the dissolution rate increases. Accordingly, we believe that the angle effect on the dissolution rate is not fixed, possibly being affected by other dissolution convection or the injection-discharge flow cycle. Take the ratio of the upward dissolution rate (alpha = 180 degrees) and the lateral dissolution rate (alpha = 90 degrees) (R) as an example, in the previous individual simulations, R is 2. While in the cases of simultaneous upward and lateral dissolution simulation & experiments, the lateral dissolution is accelerated by the global convection flow driven by the upward dissolution, and R is 1.5 & 1.6. In the case of simultaneous multi-angle dissolution, R is 1.3. Therefore, we suggest using the proposed simulation method to help determine the actual dissolution rate in different stages during the design for actual engineering. |
| 学科主题 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000882446300005 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34973]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Zhejiang University; Zhejiang University; Zhejiang University; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Ling, Daosheng,Zhu, Song,Zheng, Jianjing,et al. A simulation method for the dissolution construction of salt cavern energy storage with the interface angle considered[J]. ENERGY,2023,263. |
| APA | Ling, Daosheng.,Zhu, Song.,Zheng, Jianjing.,Xu, Zijun.,Zhao, Yunsong.,...&Li, Jinlong.(2023).A simulation method for the dissolution construction of salt cavern energy storage with the interface angle considered.ENERGY,263. |
| MLA | Ling, Daosheng,et al."A simulation method for the dissolution construction of salt cavern energy storage with the interface angle considered".ENERGY 263(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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