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Performance of geothermal single well for intermittent heating
Bu, Xianbiao1,2,3; Jiang, Kunqing1,4; Li, Huashan1,2,3
2019-11-01
发表期刊ENERGY
ISSN0360-5442
卷号186页码:9
通讯作者Li, Huashan(lihs@ms.giec.ac.cn)
摘要Single well geothermal heating (SWGH) can widely be used all around the world, no matter if there are rich hot water reservoirs. However, its promotion is limited due to long payback period. To reduce the payback period, the intermittent operation mode is proposed in terms of the commercial buildings. An experimental test for continuous heating is firstly carried out, and the extracted thermal output is 448.49 kW with the static payback period of 7.17 years. A mathematical model is then developed in order to simulate the performance of intermittent operation. The simulated results show that the extracted thermal output for intermittent operation is always greater than that for continuous operation due to having the heat recovery period. The extracted thermal output is respectively 619.12 and 587.51 kW in the first and the tenth heating season at the fixed injection temperature and velocity. The extracted thermal output can keep stable if changing the injection temperature and velocity, and thus the imbalance of the extracted thermal output among different heating seasons can be adjusted. The static payback time for intermittent operation is reduced to 5.16 years compared to continuous operation, which will speed up the spreading and application of SWGH technology. (C) 2019 Elsevier Ltd. All rights reserved.
关键词Intermittent heating Geothermal heating Commercial buildings heating Deep borehole heat exchanger Single well geothermal heating
DOI10.1016/j.energy.2019.115858
关键词[WOS]ABANDONED OIL-WELLS ; POWER-GENERATION ; GAS-WELLS ; SYSTEM ; ENERGY ; MODEL ; SIMULATION ; OPERATION ; EXCHANGER ; FLUID
收录类别SCI
语种英语
资助项目National Key Research and Development Program of China[2018YFB1501805] ; Natural Science Foundation of Guangdong Province[2018A030313018]
WOS研究方向Thermodynamics ; Energy & Fuels
项目资助者National Key Research and Development Program of China ; Natural Science Foundation of Guangdong Province
WOS类目Thermodynamics ; Energy & Fuels
WOS记录号WOS:000492797300045
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/26203
专题中国科学院广州能源研究所
通讯作者Li, Huashan
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 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, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位中国科学院广州能源研究所
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GB/T 7714
Bu, Xianbiao,Jiang, Kunqing,Li, Huashan. Performance of geothermal single well for intermittent heating[J]. ENERGY,2019,186:9.
APA Bu, Xianbiao,Jiang, Kunqing,&Li, Huashan.(2019).Performance of geothermal single well for intermittent heating.ENERGY,186,9.
MLA Bu, Xianbiao,et al."Performance of geothermal single well for intermittent heating".ENERGY 186(2019):9.
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