在模拟地热钻孔时，热阻容量（TRC）模型用于计算热容量。本文提出了一个这样的模型。在提出的模型中，钻孔在轴向上离散，具有有限数量的等高段。任何给定横截面的接地容量都集中在各个节点中，每个节点都有自己的温度。流体容量还包括两个节点，每个U形管支腿一个节点。最后，基于经典圆柱形热源解析解，通过地面传热模型计算井壁温度。在加拿大住房技术中心（加拿大渥太华）进行的两项试验的实验数据用于验证本文提出的TRC模型。第一组数据来自在76 m钻孔上进行的热响应测试（TRT）。该测试用于获得地面热导率，但也用于校准地面模型，以估算地面热扩散率。 第二组数据来自两个平行钻孔的实际流量，该钻孔与两个3.52千瓦（1吨）的热泵相连，用于为房屋供暖。在47天内，每5分钟进行一次测量，包括间歇性操作。结果表明，TRC模型预测的出口温度和灌浆温度与相应的实验温度之间有很好的一致性。引用:2016年冬季会议，佛罗里达州奥兰多，会议论文

Thermal Resistance Capacity (TRC) models are used to account for thermal capacity when simulating geothermal boreholes. One such model ispresented in this paper. In the proposed model, the borehole is discretized in the axial direction with a limited number of segments of equal height. The groutcapacity at any given cross-section is lumped together in various nodes each with its own temperature. The fluid capacity is also included with two nodes, onefor each U-tube leg. Finally, the borehole wall temperature is obtained from a ground heat transfer model based on the classic cylindrical heat sourceanalytical solution. Experimental data from two tests performed at the Canadian Centre for Housing Technology (Ottawa, Canada) are used to validatethe TRC model presented here. The first data set is taken from a thermal response test (TRT) performed on a 76 m borehole. This test is used to obtainthe ground thermal conductivity but also to calibrate the ground model to estimate the ground thermal diffusivity. The second set is taken from the actualoperation of two parallel boreholes linked to two 3.52 kW (1 ton) heat pumps used to heat a house. Measurements were taken every 5 minutes over aperiod of 47 days and include periods of intermittent operation. Results show that there is excellent agreement between the outlet temperatures and the grouttemperatures predicted by the TRC model and the corresponding experimental temperatures.