Simulation analysis of a single well geothermal system with open-loop structure
文献类型：期刊论文
| 作者 | Jiang, Kunqing1,2; Bu, Xianbiao1
|
| 刊名 | GEOTHERMICS
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 100页码:15 |
| 关键词 | Deep borehole heat exchanger Single-well enhanced geothermal system Geothermal reservoir Buoyancy effect |
| ISSN号 | 0375-6505 |
| DOI | 10.1016/j.geothermics.2021.102338 |
| 通讯作者 | Bu, Xianbiao(buxb@ms.giec.ac.cn) |
| 英文摘要 | The relatively small heat exchange power limits the promotion and application of deep borehole heat exchanger (DBHE) with the closed loop due to the main heat transfer pattern of heat conduction through rocks with poor thermal conductivity coefficient. Furthermore, geothermal water is prohibited to extract in some places even with 100% reinjection. To solve the above problems, here a novel single-well enhanced geothermal system (SEGS) is studied with an open-loop structure having the convection heat exchange process. The heat transfer performance, mechanism and main influential factors of SEGS are studied. Result shows that the heat transfer performance of SEGS is greatly improved compared to DBHE, and the average heat transfer power of SEGS reaches 1603.6 kW and 1204.6 kW respectively with different operation modes. In addition, the study also finds that the convective heat transfer process inside the geothermal reservoir is simultaneously affected by the driving effect of the fluid in the screen and the buoyancy effect. Further, the above two effects act in the same direction when the annulus is used as the inlet, while they act in the opposite direction when the inner tube is used as the inlet. |
| WOS关键词 | HEAT EXTRACTION PERFORMANCE ; ABANDONED OIL ; ENERGY ; CO2 ; HETEROGENEITY ; EXPLOITATION ; WETTABILITY ; CONVECTION ; EFFICIENCY ; IMPACT |
| 资助项目 | National Natural Science Foundation of China[41972314] |
| WOS研究方向 | Energy & Fuels ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000781356800002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/36164]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Bu, Xianbiao |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Sch Energy Sci & Engn, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Kunqing,Bu, Xianbiao. Simulation analysis of a single well geothermal system with open-loop structure[J]. GEOTHERMICS,2022,100:15. |
| APA | Jiang, Kunqing,&Bu, Xianbiao.(2022).Simulation analysis of a single well geothermal system with open-loop structure.GEOTHERMICS,100,15. |
| MLA | Jiang, Kunqing,et al."Simulation analysis of a single well geothermal system with open-loop structure".GEOTHERMICS 100(2022):15. |
入库方式： OAI收割
来源：广州能源研究所
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