| 土壤源热泵地下垂直换热埋管周围非稳态温度场的数值模拟 |
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| 引用本文： | 吕丽霞,李素芬,李亮,东明. 土壤源热泵地下垂直换热埋管周围非稳态温度场的数值模拟[J]. 节能, 2005, 0(6): 6-9,2 |
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| 作者姓名： | 吕丽霞 李素芬 李亮 东明 |
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| 作者单位： | 大连理工大学动力工程系,辽宁,大连,116024 |
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| 摘 要： | 针对土壤源热泵地下垂直U型换热埋管,建立了周围土壤的非稳态温度场的数学模型,并利用隐式有限差分法进行了数值模拟。通过对制冷和制热工况的模拟,得到土壤温度沿径向的变化规律、埋管出水温度的变化规律及埋管的热作用半径的变化规律。
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| 关 键 词： | 土壤源热泵 U型垂直埋管 非稳态温度场 |
| 文章编号： | 1004-7948(2005)06-0006-04 |
Numerical simulation of the soil temperature field around vertically buried pipe of a ground-source heat pump |
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| Abstract: | A transient heat transfer model of the soil temperature field around a vertical U-tube of ground source heat pump was established.The numerical simulation was obtained by using the implied finite difference method.By making the simulation of cooling and heating mode,the change rules of the soil temperature with the radial direction,the change rules of the exit water temperature of the buried pipe and the thermal influencing radius in the vertical multi-pipe were obtained. |
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| Keywords: | ground-source heat pump vertical U-tube transient temperature field |
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