Heat extraction performance of the super-long gravity heat pipe applied to geothermal reservoirs of multi-aquifers
文献类型：期刊论文
| 作者 | Li, Zhibin1,2,3,4; Guo, Jian1,2,3; Huang, Wenbo1,2,3; Chen, Juanwen1,2,3; Liu, Kunpeng5; Cen, Jiwen1,2,3; Ma, Qingshan1,2,3,6; Li, Ang1,2,3,6; Wang, Bin1,2,3; Jiang, Fangming1,2,3 |
| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2024-06-15 |
| 卷号 | 225页码:12 |
| 关键词 | Super-long gravity heat pipe Heat transfer enhancement in reservoir Heat convection Wellbore-connected aquifers Downhole heat exchanger |
| ISSN号 | 0017-9310 |
| DOI | 10.1016/j.ijheatmasstransfer.2024.125440 |
| 通讯作者 | Guo, Jian(guojian@ms.giec.ac.cn) ; Jiang, Fangming(jiangfm@ms.giec.ac.cn) |
| 英文摘要 | The super -long gravity heat pipe (SLGHP) is a novel down -hole heat exchanger (DHE), which is in fastdeveloping and extremely suitable for deep -earth geothermal energy exploitation. The SLGHP itself has very high heat transfer coefficient, making the poor heat transfer capability of the surrounding geothermal formulations become the bottleneck constraining the overall performance of the SLGHP geothermal system. Inspired by the enhancing effect of the flowing groundwater in the aquifers on the thermal performance of the traditional DHE system, the present work proposes a heat transfer enhancement strategy based on arousing inter -layer crossflow in wellbore-connected multi -aquifers for the SLGHP geothermal system. A detailed numerical study is conducted to examine the effects of key parameters like the permeability and thickness of aquifers, the distance and pressure difference between aquifers. It is found that: i) a larger aquifer permeability leads to larger heat extraction rate of the SLGHP, but the heat extraction rate increment decreases due to the marginal effect when the aquifer permeability is larger than 10-12 m2; ii) a larger pressure difference improves the heat extraction of the SLGHP, the groundwater flow pattern from the deep to the shallow aquifers rather than the reversed pattern is found to be more beneficial due to the geothermal gradient; iii) the distance between aquifers shows a composite impact on the heat extraction performance of the SLGHP. A larger distance not only enlarges the heat transfer area between the SLGHP and the groundwater, but also creates an impeding effect on the heat uptake of SLGHP from the geothermal formation owing to the presentence of temperature -lowered groundwater in the flow path ending -part in the wellbore. In addition, the aquifer's thickness is found to have great impacts on the SLGHP heat extraction rate, and the "cask" effect may be encountered when the thickness difference between the connected aquifers is considerably large. |
| WOS关键词 | REINJECTION ; FIELDS ; MODEL |
| 资助项目 | National Key Research and Devel- opment Project of China[2021YFB1507302] ; National Key Research and Devel- opment Project of China[2021YFB1507300] ; China National Natural Science Foundation[52206126] ; China National Natural Science Foundation[52206287] ; Jiangyin Science and Technology Innovation Special Fund[JY0604A021015210001PB] ; Jiangsu Provincial Carbon Peak Carbon Neutralization Technology Innovation Special Fund ; Youth Innovation Promotion Association (CAS)[2023000048] |
| WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001208954900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Devel- opment Project of China ; China National Natural Science Foundation ; Jiangyin Science and Technology Innovation Special Fund ; Jiangsu Provincial Carbon Peak Carbon Neutralization Technology Innovation Special Fund ; Youth Innovation Promotion Association (CAS) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41512]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Guo, Jian; Jiang, Fangming |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Tongji Univ, Shanghai 200092, Peoples R China 6.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhibin,Guo, Jian,Huang, Wenbo,et al. Heat extraction performance of the super-long gravity heat pipe applied to geothermal reservoirs of multi-aquifers[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2024,225:12. |
| APA | Li, Zhibin.,Guo, Jian.,Huang, Wenbo.,Chen, Juanwen.,Liu, Kunpeng.,...&Jiang, Fangming.(2024).Heat extraction performance of the super-long gravity heat pipe applied to geothermal reservoirs of multi-aquifers.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,225,12. |
| MLA | Li, Zhibin,et al."Heat extraction performance of the super-long gravity heat pipe applied to geothermal reservoirs of multi-aquifers".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 225(2024):12. |
入库方式： OAI收割
来源：广州能源研究所
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