| 同轴地埋管换热器岩土热响应试验研究 |
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| 引用本文： | 关鹏,段新胜,焦玉勇,李鹏,谭飞,邹俊鹏. 同轴地埋管换热器岩土热响应试验研究[J]. 太阳能学报, 2022, 43(2): 55-61. DOI: 10.19912/j.0254-0096.tynxb.2020-0309 |
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| 作者姓名： | 关鹏 段新胜 焦玉勇 李鹏 谭飞 邹俊鹏 |
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| 作者单位： | 中国地质大学（武汉）工程学院,武汉 430074 |
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| 基金项目： | 国家自然科学基金（41731284）； |
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| 摘 要： | 岩土热物理性质是影响地源热泵系统设计和运营的关键因素,对位于武汉市洪山区的2口不同深度的同轴地埋管换热孔分别进行48 h的热响应试验,并对同轴地埋管换热器内外管之间环形空间中的平均流体温度进行测试.根据同轴地埋管换热器的几何特性,以简便实用的方式测量同轴地埋管换热器环状空间传热流体的平均温度,结合同轴地埋管换热器钻孔热...
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| 关 键 词： | 地源热泵 换热器 热阻 导热系数 比热容 热扩散率 热响应试验 |
| 收稿时间： | 2020-04-07 |
EXPERIMENTAL STUDY ON GEOTECHNICAL THERMAL RESPONSE TEST OF COAXIAL BOREHOLE HEAT EXCHANGER |
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| Guan Peng,Duan Xinsheng,Jiao Yuyong,Li Peng,Tan Fei,Zou Junpeng. EXPERIMENTAL STUDY ON GEOTECHNICAL THERMAL RESPONSE TEST OF COAXIAL BOREHOLE HEAT EXCHANGER[J]. Acta Energiae Solaris Sinica, 2022, 43(2): 55-61. DOI: 10.19912/j.0254-0096.tynxb.2020-0309 |
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| Authors: | Guan Peng Duan Xinsheng Jiao Yuyong Li Peng Tan Fei Zou Junpeng |
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| Affiliation: | Faculty of Engineering, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | Geotechnical thermophysical properties are the key factors affecting the design and operation of ground source heat pump（GSHP） system. Two thermal response tests lasted 48 h were performed in two experimental coaxial borehole heat exchangers with different depths located in Hongshan District of Wuhan City, and the average fluid temperature in the annular space between inner tube and outer tube of coaxial borehole heat exchangers was measured. A simple in-situ method to obtain ground thermal properties was presented, which combines the analytical solution of borehole thermal resistance with the infinite line source model （ILSM）, according to the geometric characteristics of coaxial borehole heat exchanger. Compared with the laboratory test results, the thermal physical properties of rock and soil obtained by this method are in good agreement, which indicates that the proposed method is feasible. |
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| Keywords: | ground source heat pump heat exchanger thermal resistance thermal conductivity heat capacity thermal diffusivity thermal response test |
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