| 大直径宽通道套管式地埋管换热器热响应测试分析 |
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| 引用本文： | 库美亮,桂树强,颜俊,肖小曼.大直径宽通道套管式地埋管换热器热响应测试分析[J].世界地质,2020,39(1):226-233. |
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| 作者姓名： | 库美亮 桂树强 颜俊 肖小曼 |
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| 作者单位： | 长江勘测规划设计研究有限责任公司工程咨询公司,武汉,430071 |
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| 摘 要： | 通过对比试验测试,分析了一种大直径宽通道套管式地埋管换热器的换热性能。试验地点分别选在武汉与北京两地进行。测试结果表明套管式换热器在换热效率上要优于双U式换热器,且在冬季取热工况下尤为明显。得益于套管式换热器本身储水量较大的特点,其在非连续运行工况下会有更优异的表现,具体表现在系统运行初期2h内,取热功率相比平均值高出约29%,系统运行初期9h内,取热功率相比平均值高出约17%。
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| 关 键 词： | 地埋管 换热器 热响应 热物性参数 |
Test and analysis of thermal response of large diameter and wide channel coaxial borehole heat exchanger |
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| KU Mei-liang,GUI Shu-qiang,YAN Jun,XIAO Xiao-man.Test and analysis of thermal response of large diameter and wide channel coaxial borehole heat exchanger[J].World Geology,2020,39(1):226-233. |
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| Authors: | KU Mei-liang GUI Shu-qiang YAN Jun XIAO Xiao-man |
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| Institution: | (The Engineering Consulting Company of Changjiang Institute of Survey,Planning,Design and Research,Wuhan 430071,China) |
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| Abstract: | Through comparative tests,the heat transfer performance of a large diameter and wide channel coaxial borehole heat exchanger has been analyzed.The test sites were selected in Wuhan and Beijing,and the results show that coaxial borehole heat exchanger is superior to double U heat exchanger in heat transfer efficiency,and this is especially obvious in winter heating conditions.Because of the large water storage capacity of the coaxial borehole heat exchanger itself,it will perform better under discontinuous operation conditions.The specific performance is that in the initial two hours of the system operation,the heating power is about 29%higher than the average,and in the initial nine hours of the system operation,the heating power is about 17%higher than the average. |
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| Keywords: | buried pipe heat exchanger thermal response thermal physical parameters |
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