The problem of comparing thermosyphons in terms of engineering solutions used for cooling the pile foundations of residential buildings in the regions of the Far North is considered. For comparison, specific self-cooling units (SCU) of two types were selected, including liquid SCU 1 with a pipe diameter of 120 mm and a vapor-liquid SCU 2 with a pipe diameter of 50 mm. Simple analytical calculations proved the thermal efficiency of SCU 2 to be 1.4 times less than that of SCU 1, which is primarily related to the pipe diameter. Numerical calculations using the TEMPA software package have demonstrated that, despite the slightly greater cooling effect of SCU 1, the temperature field for September of the third calculation year is leveled for both devices.

考虑在用于冷却远北地区住宅建筑桩基的工程解决方案方面比较热虹吸管的问题。为了进行比较，选择了两种类型的特定自冷单元 (SCU)，包括管径为 120 mm 的液体 SCU 1 和管径为 50 mm 的汽液 SCU 2。简单的分析计算证明，SCU 2 的热效率比 SCU 1 低 1.4 倍，这主要与管径有关。使用 TEMPA 软件包的数值计算表明，尽管 SCU 1 的冷却效果稍大，但两个设备的第三个计算年 9 月的温度场是水平的。