在之前的工作中，作者比较了住宅应用中垂直钻孔换热器（BHEx）设计的许多商用程序。本文的目的是比较四个BHEx设计程序和一个商业应用的基准模拟。利用现场收集的数据，对一所使用地热热泵的小学的能源使用模型进行了校准，以形成基准；然后，在现场对学校的运行进行了典型气象年的模拟，模拟结果被用作四个设计方案的输入。由于学校的负荷主要由供暖控制，因此这些程序被用于设计最低进水温度为30°F的钻井场(- 1.1摄氏度、35华氏度（1.7摄氏度）和40华氏度（4.4摄氏度）。平均而言，设计程序预测的深度与基准程序预测的深度一致，约在±14%以内。其中三个项目的结果相对一致:它们的设计长度与基准长度的差异为-7%至+12%，而另一个项目的设计与基准长度的差异约为16%。这与住宅比较的结果一致。单位:双引文:研讨会，ASHRAE交易，第106卷，pt。1.

In previous work, the authors compared a number of commercially available programs for the design of vertical borehole heat exchangers (BHEx) in residential applications. The objective of this paper is to compare four BHEx design programs and a benchmark simulation for a commercial application. An energy use model of an elementary school served by geothermal heat pumps was calibrated with site-collected data to form the benchmark; the school's operation was then simulated for a typical meteorological year at the site, and the outputs from the simulation were used as inputs to the four design programs. Since loads at the school are dominated by heating, the programs were exercised to design borefields with minimum inlet water temperatures of 30°F (-1.1°C), 35°F (1.7°C), and 40°F (4.4°C). On average, the depths predicted by the design programs agreed with the depths predicted by the benchmark program to within about ±14%. Three of the programs were found to provide relatively consistent results: their design lengths varied from the benchmark lengths by -7% to +12%, while designs from the other program varied by about 16% from the benchmark lengths. This is consistent with the results obtained for the residential comparison.Units: Dual