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Analysis of intermittent operation on the ground temperature recovery of borehole heat exchanger fields

机译：钻孔换热器田地温度恢复间歇运行分析

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This paper analyzes the intermittent operation on the ground temperature recovery of borehole heat exchanger (BHE) fields. The outlet fluid temperature is regarded as the field measurement to study the ground temperature recovery. Various factors influencing the ground temperature recovery are studied. The results show that, compared to other influencing factors, the amount of building energy demand has a more significant impact on the ground temperature recovery. While considering the influence of heat pump COP, for the same building energy demand, the performance of continuous operation is better than that of intermittent operation. The rising of the groundwater table is beneficial to the restoration of ground temperature. Ignoring groundwater fluctuations will cause an error of 0.3 degrees C in 20-day operation.
机译：本文分析了钻孔热交换器（BHE）场地下温度回收的间歇运行。出口流体温度被认为是研究地温恢复的场测量。研究了影响地温恢复的各种因素。结果表明，与其他影响因素相比，建筑能源需求量对地温恢复具有更大的影响。在考虑热泵COP的影响的同时，对于相同的建筑能源需求，连续操作的性能优于间歇运行。地下水位的上升有利于恢复地温。忽略地下水波动将在20天运行中导致0.3摄氏度的误差。

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