由于运行和维护成本较低，地热热泵（GHP）越来越成为学校和其他机构供暖、制冷和热水的热门选择。认识到这些好处，内布拉斯加州林肯学区于1995年委托了四所新的相同的69000平方英尺（6400平方米）小学，由GHPs提供服务。使用GHPs的决定基于一项分析，该分析比较了许多不同HVAC技术的估计寿命周期成本。学校能源管理系统的大量运行数据的存在，使作者能够开发一个经过校准的模拟模型，准确预测四所学校之一的所有主要建筑子系统（包括GHPs）的能源使用。 该模型与学区维护数据库中的安装成本和实际成本信息的独立估算相结合，可以更严格地比较GHP和其他三种空间调节方案的生命周期成本。本文给出了该比较的结果，并表明当考虑林肯应用的资本、运行和维护成本时，地热热泵的寿命周期成本最低，比下一个最有吸引力的选项低约15%。温室气体处理厂的能源消耗和污染物排放总量在所考虑的任何技术中都是最低的。对于这种应用，地热热泵的首次成本也低于目前用于新学校空间调节的任何其他系统。 单位:双引文:研讨会，ASHRAE交易，第106卷，pt。2.

Because of their low operating and maintenance costs, geothermal heat pumps (GHPs) are an increasingly popular choice for providing heating, cooling, and water heating to schools and other institutions. Recognizing these benefits, the Lincoln, Nebraska, school district in 1995 commissioned four new identical 69,000 ft2(6400 m2) elementary schools served by GHPs. The decision to use GHPs was based on an analysis that compared the estimated life-cycle cost of a number of different HVAC technologies. The existence of extensive operating data from the schools' energy management systems allowed the authors to develop a calibrated simulation model that accurately predicts the energy use of all major building subsystems, including the GHPs, for one of the four schools. This model, combined with independent estimates of installed costs and actual cost information from the school district's maintenance database, allowed a more rigorous comparison of the life-cycle costs of GHPs and three other space-conditioning options. This paper presents the results of that compar-ison and shows that when capital, operating, and maintenance costs are considered for the Lincoln application, geothermal heat pumps have the lowest life-cycle cost, about 15% lower than the next most attractive option. The GHPs also have the lowest source energy consumption and the lowest total pollutant emissions of any of the technologies considered. For this application, geothermal heat pumps also have a lower first cost than any of the other systems currently used for space conditioning in new schools.Units: Dual