Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Performance analysis of shallow depth hydrothermal enhanced geothermal system for electricity generation | |
Bu, Xianbiao1,2,3 ; Jiang, Kunqing1,4; He, Yujiang5,6
| |
| 2020-07-01 | |
| Source Publication | GEOTHERMICS
 |
| ISSN | 0375-6505 |
| Volume | 86Pages:6 |
| Corresponding Author | He, Yujiang(hyj8620@163.com) |
| Abstract | There is a large mismatch between potential estimates and developed geothermal resources in China due to high cost and risk for enhanced geothermal system (EGS) and scattered resources and low volume flow rate for hydrothermal system. Here we propose a shallow depth enhanced geothermal system (SDEGS), which can be implemented by fracturing the shallow depth hydrothermal system to create rich fractures in order to enhance permeability and volume flow rate. The mathematical models describing the continuity, momentum and energy equations in the artificial reservoir and surrounding rock, as well as the thermoelectric conversion equations of Organic Rankine cycle (ORC) are developed. From the simulation results we find that the artificial reservoir of SDEGS can provide stable heat output and outlet water temperature of respectively 59499.97 kW and 165 degrees Cfor almost 23 years. For ORC for generating electricity, the net work output and thermal efficiency are respectively 8053.6 kW and 13.54 %. SDEGS can reduce the hydraulic fracturing risk and cost due to existing rich natural fractures in hydrothermal system, thus broadening the application ranges of EGS. |
| Keyword | Geothermal electricity generation Organic rankine cycle Hydrothermal enhanced geothermal system Shallow depth hydrothermal system Enhanced geothermal system |
| DOI | 10.1016/j.geothermics.2020.101847 |
| WOS Keyword | HEAT EXTRACTION PERFORMANCE ; ABANDONED OIL-WELLS ; HOT DRY ROCK ; NUMERICAL-SIMULATION ; POWER-GENERATION ; SINGLE-WELL ; ENERGY ; EGS ; RESERVOIR ; FIELD |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41972314] |
| WOS Research Area | Energy & Fuels ; Geology |
| Funding Organization | National Natural Science Foundation of China |
| WOS Subject | Energy & Fuels ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000534152600029 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/27123 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | He, Yujiang |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, 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.Chinese Acad geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China 6.Minist Nat Resources, Technol Innovat Ctr Geothermal & Hot Dry Rock Exp, Shijiazhuang 050061, Hebei, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Bu, Xianbiao,Jiang, Kunqing,He, Yujiang. Performance analysis of shallow depth hydrothermal enhanced geothermal system for electricity generation[J]. GEOTHERMICS,2020,86:6. |
| APA | Bu, Xianbiao,Jiang, Kunqing,&He, Yujiang.(2020).Performance analysis of shallow depth hydrothermal enhanced geothermal system for electricity generation.GEOTHERMICS,86,6. |
| MLA | Bu, Xianbiao,et al."Performance analysis of shallow depth hydrothermal enhanced geothermal system for electricity generation".GEOTHERMICS 86(2020):6. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment