| 埋深对地源热泵水平连接管夏季换热性能的影响 |
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| 引用本文： | 张锐,张旭.埋深对地源热泵水平连接管夏季换热性能的影响[J].暖通空调,2012,42(2):71-75. |
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| 作者姓名： | 张锐 张旭 |
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| 作者单位： | 同济大学 |
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| 基金项目： | 上海市科委资助项目，同济大学-大金项目 |
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| 摘 要： | 建立了接近实际情况的三维水平连接管模型,通过实验验证了该模型的准确性.利用该模型分析了埋深对水平连接管夏季换热性能的影响,结果显示,运行24 h后埋深0.5m和1.0m的水平连接管的出水管从土壤吸热,导致竖直地埋管出水温度经过水平连接管后升高；而埋深1.5m和2.0m的水平连接管的进水管和出水管均向土壤放热,且换热量比埋深0.5m和1.0m时大大提高,占整个换热器换热量的比例也相应提高.
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| 关 键 词： | 地源热泵 埋深 水平连接管 换热性能 进水管 出水管 |
Impact of buried depth on heat transfer performance of horizontal connection pipe in ground-source heat pump systems in summer |
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| Zhang Rui
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Zhang Xu.Impact of buried depth on heat transfer performance of horizontal connection pipe in ground-source heat pump systems in summer[J].Journal Heating Ventilating and Airconditioning,2012,42(2):71-75. |
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| Authors: | Zhang Rui Zhang Xu |
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| Abstract: | Establishes a 3D model of the horizontal connection pipe close to actual situation,and verifies the model with experiments.Based on the model,analyses the impact of the depth on heat transfer performance of horizontal connection pipe in summer.The result indicates that the outlet pipe of horizontal connection pipe embedded in 0.5 m and 1.0 m absorbs heat from soil,so that the water temperature out of vertical ground heat exchanger increases;the inlet and outlet pipes of horizontal connection pipe embedded in 1.5 m and 2.0 m both release heat to soil,and the heat exchange rate and proportion are largely increased. |
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| Keywords: | ground-source heat pump buried depth horizontal connection pipe heat transfer performance inlet pipe outlet pipe |
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