Thermodynamic and economic performance of super-long gravity heat pipe geothermal power plant
文献类型：期刊论文
| 作者 | Ma, Qingshan2,3,4,5; Huang, Wenbo2,3,4; Chen, Juanwen2,3,4; Cen, Jiwen2,3,4; Li, Zhibin1,2,3,4; Lin, Weijie2,3,4,5; Li, Feng1,2,3,4; Jiang, Fangming2,3,4,5 |
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 248页码:11 |
| 关键词 | Downhole heat exchanger Hot dry rock Single -well geothermal system Super -long gravity heat pipe Thermo -economic analysis |
| ISSN号 | 1359-4311 |
| DOI | 10.1016/j.applthermaleng.2024.123115 |
| 通讯作者 | Chen, Juanwen(chenjw@ms.giec.ac.cn) ; Jiang, Fangming(jiangfm@ms.giec.ac.cn) |
| 英文摘要 | Hot dry rock energy has the potential to be a solution for both energy shortage and carbon -emission reduction. The novel technical scheme based on the super -long gravity heat pipe system in a single well has aroused great interest in the geothermal research and industry community; however, there is yet very few investigations on its power generation performance. Unlike other hot dry rock energy exploitation technologies, super -long gravity heat pipe produces saturated vapor, which can directly drive a steam turbine to generate electricity in a similar fashion to thermal power plants. This study comprehensively analyzes and compares the performance of the super -long gravity heat pipe system with the traditional single -well downhole heat exchanger system from the perspective of technology and economy. The acquired knowledge gives in-depth information about the superlong gravity heat pipe geothermal power generation system. The analysis and comparison are based on a novel thermodynamic and economic model specially developed in this study. Both systems consider the same geothermal conditions and the working fluid of both systems is optimized to maximize their power output. Thermodynamic results show that the super -long gravity heat pipe system has higher efficiency compared to that of the downhole heat exchanger system. The economic analysis indicates that the downhole heat exchanger system involves slightly lower costs than those of the super -long gravity heat pipe system, while the levelized cost of energy of downhole heat exchanger system is, much higher than that of the super -long gravity heat pipe system. For the baseline cases investigated, the energy efficiency of the super -long gravity heat pipe system is 10.92%, which is 1.37 times that of the downhole heat exchanger system; having a larger scale power station by increasing the number of wells from 1 to 10 makes the levelized cost of energy decrease from 0.30 $/kWh to 0.18 $/kWh for the super -long gravity heat pipe system, and from 0.74 $/kWh to 0.43 $/kWh for the downhole heat exchanger system. |
| WOS关键词 | ORGANIC RANKINE CYCLES ; SYSTEM ; GENERATION ; EXCHANGER ; EXERGY ; ENERGY ; ORC |
| 资助项目 | National Key R & D Program of China[2021YFB1507300] ; National Key R & D Program of China[2021YFB1507304] ; Chinese Academy of Sciences Key Laboratory of Renewable Energy[E0290302] ; Guangzhou Science and Technology Plan Project[202102020245] ; Jiangyin Science and Technology Innovation Special Fund[JY0604A021015210001PB] ; Jiangsu Provincial Carbon Peak Carbon Neutralization Technology Innovation Special Fund[BE2022012] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001229317100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key R & D Program of China ; Chinese Academy of Sciences Key Laboratory of Renewable Energy ; Guangzhou Science and Technology Plan Project ; Jiangyin Science and Technology Innovation Special Fund ; Jiangsu Provincial Carbon Peak Carbon Neutralization Technology Innovation Special Fund |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41843]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Chen, Juanwen; Jiang, Fangming |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Qingshan,Huang, Wenbo,Chen, Juanwen,et al. Thermodynamic and economic performance of super-long gravity heat pipe geothermal power plant[J]. APPLIED THERMAL ENGINEERING,2024,248:11. |
| APA | Ma, Qingshan.,Huang, Wenbo.,Chen, Juanwen.,Cen, Jiwen.,Li, Zhibin.,...&Jiang, Fangming.(2024).Thermodynamic and economic performance of super-long gravity heat pipe geothermal power plant.APPLIED THERMAL ENGINEERING,248,11. |
| MLA | Ma, Qingshan,et al."Thermodynamic and economic performance of super-long gravity heat pipe geothermal power plant".APPLIED THERMAL ENGINEERING 248(2024):11. |
入库方式： OAI收割
来源：广州能源研究所
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