| 埋管换热器热阻分析 |
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| 引用本文： | 石零,韩书勇,余新明. 埋管换热器热阻分析[J]. 低温与超导, 2011, 0(12): 61-63 |
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| 作者姓名： | 石零 韩书勇 余新明 |
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| 作者单位： | 江汉大学化学与环境工程学院 |
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| 基金项目： | 武汉市科技计划项目(200851799524-04) |
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| 摘 要： | 地源热泵系统中的竖直埋管换热器是地源热泵系统的一个关键部分,从U管内至岩土间的传热热阻影响热泵系统的性能.文中介绍在静态负荷下,利用垂直U型埋管换热器换热的一维模型和二维模型,从传热热阻的角度进行了埋管管径、钻孔直径与管内对流热阻、钻孔热阻间的分析,结果显示,对钻孔热阻与管径的优化选择可降低热阻,同时对提高埋管换热器的...
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| 关 键 词： | 热泵系统 埋管换热器 对流热阻 钻孔热阻 |
Thermal resistance analysis for ground heat exchanger |
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| Shi Ling,Han Shuyong,Yu Xinming. Thermal resistance analysis for ground heat exchanger[J]. Cryogenics and Superconductivity, 2011, 0(12): 61-63 |
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| Authors: | Shi Ling Han Shuyong Yu Xinming |
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| Affiliation: | (School of Chemical and Environmental Engineering,Jianghan University,Wuhan 430056,China) |
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| Abstract: | The heat exchanger of buried U-tube is a key component in the Ground-source heat pump system.The heat transfer resistance from the U-tube to the soil affects the ability of the ground-source heat pump system.It was analyzed that the relationship of the diameter of the U-tube,the bore-hole diameter with convection thermal resistance and bore-hole,using the one-dimension and two-dimension model under static load.The results show that bore-hole thermal resistance can decrease by optimizing the U-tube diameter and the bore-hole diameter,at the same time,it is important to improve the efficiency of the heat exchanger,guide the design of heat exchanger. |
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| Keywords: | Heat pump system Heat exchanger of buried U-tube Convection thermal resistance Bore-hole thermal resistance |
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