本文将无限圆柱源（ICS）解与无限线源（ILS）解相结合，讨论了一种已开发的具有多个地下换热器的地源热泵（GSHP）系统仿真工具。在开发的工具中，应用空间温度场的叠加来计算多个GHEX的热注入引起的地下温度。然后，将ICS溶液应用于因所考虑的GHEX热注入而引起的温度变化，并将ILS溶液应用于因其他相邻GHEX热注入而引起的温度变化。 本文首先指出，当热源到被考虑点的距离变大时，集成电路的温度响应可以看作是离子液体的温度响应。接下来，描述了由于多个GHEX的热注入而导致的温度变化的高速计算方法。此外，还介绍了所开发工具中计算方法的优点。最后，以东京某办公楼安装的地源热泵系统为例，计算了热泵一次侧的温度变化，并通过与实测值的比较验证了其再现性。 结果显示，在大多数情况下，计算值和测量值之间的差异高达5°C（9°F），低于2°C（3.6°F），从而确认了该工具的再现性。引用:2018年德克萨斯州休斯顿年会，技术论文

This paper discusses a developed simulation tool for ground-source heat pump (GSHP) systems with multiple ground heat exchangers (GHEXs) by combining the infinite cylindrical source (ICS) solution with the infinite line source (ILS) solution. In the developed tool, superposition of the temperature field in space was applied to calculate the underground temperature due to heat injection from multiple GHEXs. Then, the ICS solution was applied for temperature change due to heat injection of the considered GHEX and the ILS solution was applied for temperature change due to the heat injection of other neighboring GHEXs. In this paper, first it is shown that the temperature response of the ICS can be regarded as that of the ILS in cases where the distance from the heat source to the considered point becomes larger. Next, the method for the high-speed calculation of temperature change due to heat injection of the multiple GHEXs is described. In addition, the advantages of the calcu- lation method in the developed tool are introduced. Finally, considering the case of a GSHP system installed in an office building in Tokyo, the temperature change of the primary side of the heat pump is calculated, and its reproducibility is verified by comparison with measured values. The results show the difference between the calculated and measured values to be up to 5°C (9°F) and less than 2°C (3.6°F) in most cases, thus confirming the reproducibility of this tool.