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Numerical simulation of electricity generation potential from fractured granite reservoir through vertical wells at Yangbajing geothermal field
Zeng, Yu-chao1; Zhan, Jie-min1; Wu, Neng-you2; Luo, Ying-ying1; Cai, Wen-hao1
2016-05-15
发表期刊ENERGY
卷号103页码:290-304
摘要Yangbajing geothermal field is the first high-temperature hydrothermal convective geothermal system in China. Research and development of the deep fractured granite reservoir is of great importance for capacity expanding and sustaining of the ground power plant. The geological exploration found that there is a fractured granite heat reservoir at depth of 950-1350 m in well ZK4001 in the north of the geothermal field, with an average temperature of 248 degrees C and a pressure of 8.01-11.57 MPa. In this work, electricity generation potential and its dependent factors from this fractured granite reservoir by water circulating through vertical wells are numerically investigated. The results indicate that the vertical well system attains an electric power of 16.8-14.7 MW, a reservoir impedance of 0.29-0.46 MPa/(kg/s) and an energy efficiency of about 29.6-12.8 during an exploiting period of 50 years under reference conditions, showing good heat production performance. The main parameters affecting the electric power are water production rate and injection temperature. The main parameters affecting reservoir impedance are reservoir permeability, injection temperature and water production rate. The main parameters affecting the energy efficiency are reservoir permeability, injection temperature and water production rate. Higher reservoir permeability or more reasonable injection temperature or water production rate within certain ranges will be favorable for improving the electricity generation performance. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Vertical Well Yangbajing Geothermal Field Fractured Granite Reservoir Heat Production Electric Power
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.energy.2016.02.123
研究领域[WOS]Thermodynamics ; Energy & Fuels
关键词[WOS]HOT DRY ROCK ; CRYSTALLINE ROCKS ; HEAT EXTRACTION ; WORKING FLUID ; SYSTEMS EGS ; ENERGY ; RESOURCE ; STORAGE ; CARBON ; CHINA
收录类别SCI
语种英语
WOS类目Thermodynamics ; Energy & Fuels
WOS记录号WOS:000376800200025
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/11663
专题中国科学院广州能源研究所
作者单位1.Sun Yat Sen Univ, Sch Engn, Guangzhou 510275, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
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Zeng, Yu-chao,Zhan, Jie-min,Wu, Neng-you,et al. Numerical simulation of electricity generation potential from fractured granite reservoir through vertical wells at Yangbajing geothermal field[J]. ENERGY,2016,103:290-304.
APA Zeng, Yu-chao,Zhan, Jie-min,Wu, Neng-you,Luo, Ying-ying,&Cai, Wen-hao.(2016).Numerical simulation of electricity generation potential from fractured granite reservoir through vertical wells at Yangbajing geothermal field.ENERGY,103,290-304.
MLA Zeng, Yu-chao,et al."Numerical simulation of electricity generation potential from fractured granite reservoir through vertical wells at Yangbajing geothermal field".ENERGY 103(2016):290-304.
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