Experimental and analytical study of the overall heat transfer coefficient of water flowing through a single fracture in a granite core
文献类型：期刊论文
| 作者 | Huang, Xiaoxue2,3; Bai, Bing1; He, Yuanyuan1; Li, Xiaochun1 ; Li, Jun2,3; Zhu, Jialing2,3
|
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2017 |
| 卷号 | 116页码:79-90 |
| 关键词 | Fractured rock Granite Hot Dry Rock (HDR) Water flow Heat transfer Overall heat transfer coefficient |
| ISSN号 | 1359-4311 |
| DOI | 10.1016/j.applthermaleng.2017.01.020 |
| 英文摘要 | An experimental and analytical study was conducted to improve the understanding of the heat transfer characteristics between flowing water and granite fracture wall. A systematic experimental study of water flow and heat transfer through a single fracture in a well-characterized granite specimen was performed under confining pressures of 0, 3 and 6 MPa and confining temperatures of 70, 80, 90 and 100 degrees C. Based on the test data, four existing formulas of the overall heat transfer coefficient (OHTC) were evaluated. Compared to other formulas that may predict abnormal OHTC values (extremely large or negative values), Formula D and the newly proposed Formula E were suitable indicators of the OHTC under our experimental conditions. The proposed method is recommended because of its rigorous theoretical basis, concise form and effective prediction results. Based on the proposed formula E, we found that OHTCs were positively correlated with flow rates. However, wider fracture apertures resulted in smaller OHTCs, suggesting that wider apertures decrease the heat transfer efficiency. Additionally, most of the slopes of the OHTC-aperture curves were similar. Finally, we investigated the conditions for which OHTC formulas produced abnormal values. (C) 2017 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000397550300008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4032]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Tianjin Univ, Key Lab Efficient Utilizat Low & Medium Grade Ene, Minist Educ ; 3.Tianjin Univ, Tianjin Geothermal Res & Training Ctr |
| 推荐引用方式 GB/T 7714 | Huang, Xiaoxue,Bai, Bing,He, Yuanyuan,et al. Experimental and analytical study of the overall heat transfer coefficient of water flowing through a single fracture in a granite core[J]. APPLIED THERMAL ENGINEERING,2017,116:79-90. |
| APA | Huang, Xiaoxue,Bai, Bing,He, Yuanyuan,Li, Xiaochun,Li, Jun,&Zhu, Jialing.(2017).Experimental and analytical study of the overall heat transfer coefficient of water flowing through a single fracture in a granite core.APPLIED THERMAL ENGINEERING,116,79-90. |
| MLA | Huang, Xiaoxue,et al."Experimental and analytical study of the overall heat transfer coefficient of water flowing through a single fracture in a granite core".APPLIED THERMAL ENGINEERING 116(2017):79-90. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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