摘要
以某体育场为例,建立地埋管地源热泵系统中长期运行模型,进行为期10年的系统模拟运算,得到该区域土壤温度场变化规律。结果表明:渗流速度对于地埋管地源热泵系统地理管换热器及土壤换热影响较大,地下水渗流速度为15 m/a时,运行3~4年后,换热井所在区域的土壤温度场将趋于稳定,由此可判断在地下水渗流较充分的区域,地埋管地源热泵有条件达到土壤冬夏季热量平衡。
Taking one stadium as example,the mid-long term operation model of buried pipe ground-source heat pump system is established.The system simulation computation for ten years is conducted to get the variation rule of regional soil temperature field.The results show that the seepage velocity has great influence on the heat exchange between the ground heat exchanger and soil.When the seepage velocity of groundwater is 15 m/a,the soil temperature field in the heat exchange well will be stable after 3-4 years.It can be concluded that the heat balance of the soil between the winter and summer can be obtained by the ground-source heat pump in the area where the groundwater seepage is sufficient.
出处
《制冷与空调》
2017年第11期17-20,9,共5页
Refrigeration and Air-Conditioning
关键词
地埋管地源热泵
中长期
渗流
buried pipe ground-source heat pump
mid-long term
seepage
