| 竖直U形地埋管换热器传热特性实验研究 |
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| 引用本文： | 於仲义,胡平放,胡磊,袁旭东. 竖直U形地埋管换热器传热特性实验研究[J]. 煤气与热力, 2008, 28(10) |
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| 作者姓名： | 於仲义 胡平放 胡磊 袁旭东 |
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| 作者单位： | 武汉市建筑设计院,湖北,武汉,430014;华中科技大学,建筑环境与设备工程系,湖北,武汉,430074 |
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| 摘 要： | 竖直U形地埋管换热器进水温度一定的条件下，进出水温差不仅反映地埋管换热器的换热能力，还影响着地源热泵的运行效率，引入地埋管换热器能效系数反映此影响特性。实验研究了地埋管换热器进水温度、流量、地埋管埋深对地埋管换热器传热特性的影响。提高地埋管换热器的进水温度、降低流量、增大地埋管埋深可以有效增大能效系数。受地质条件与经济性等制约．地埋管换热器进水温度、埋深不能无限制增大，流量不能无限制减小，应根据实际情况进行优化分析：
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| 关 键 词： | 土壤源热泵 地埋管换热器 能效系数 |
Experimental Study on Heat Transfer Characteristics of Vertical U-tube Ground Heat Exchanger |
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| YU Zhong-yi,HU Ping-fang,HU Lei,YUAN Xu-dong. Experimental Study on Heat Transfer Characteristics of Vertical U-tube Ground Heat Exchanger[J]. Gas & Heat, 2008, 28(10) |
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| Authors: | YU Zhong-yi HU Ping-fang HU Lei YUAN Xu-dong |
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| Abstract: | At given inlet temperature of vertical U-tube ground heat exchanger (GHE),the differ- ence between inlet and outlet temperatures not only reflects the heat transfer capacity of GHE,but also affects the operation efficiency of ground-source heat pump.The energy efficiency coefficient of GHE is introduced to reflect this influence characteristic.An experimental test is conducted to study the influence of inlet temperature of GHE,flow rate and depth of buried tube on the heat transfer characteristics of GHE.In... |
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| Keywords: | ground-source heat pump ground heat exchanger energy efficiency coefficient |
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