本文探讨了在两个独立回路之间使用双U形管孔作为换热器的可能性。一个U形管与10 m2无釉光伏热（PV/T）收集器相连，另一个与水对水热泵相连。本文的目的是量化这一拟议系统对地源热泵系统季节性性能系数（SPF）的效益，该系统用于北方气候条件下的住宅空间供暖和生活用水供暖。结果表明，由于PV/T板由来自钻孔的传热流体冷却，因此该系统比非耦合系统提供的电能多7.7%。然而，泵送这种液体每年需要81千瓦时的能量。从PV/T板传递到钻孔的热量将热泵的平均入口温度提高约1℃。 5°C，这意味着热泵的性能系数（COP）更好。然而，COP并不是最佳指标，SPF（包括泵送能量）代表了更好的性能指标。结果表明，当参考系统和建议的系统进行比较时，SPF的整体值从2.82增加到2.88。引用:2016年冬季会议，佛罗里达州奥兰多，会议论文

This paper examines the possibility of using a double U-tube borehole as a heat exchanger between two independent circuits. One U-tube is linked to a 10 m2 unglazed photovoltaic-thermal (PV/T) collector and the other to a water-to-water heat pump. The objective of the paper is to quantify the benefits of this proposed system on the seasonal performance factors (SPF) of a ground-source heat pump system used for space heating and domestic water heating of a house located in a northern climate. Results show that the proposed system provides 7.7% more electricity than an uncoupled system because the PV/T panels are cooled by the heat transfer fluid from the borehole. However, 81 kWh per year of energy is required to pump this fluid. The heat transferred from the PV/T panels to the borehole increases the average inlet temperature to the heat pump by about 1.5°C which translates into better coefficients of performance (COP) for the heat pump. However, the COP is not the best metric and SPFs, which include pumping energy, represent a better performance indicator. It is shown that the global value of the SPF increases from 2.82 to 2.88 when the reference system and the proposed system are compared.