较高的室外通风空气要求可能会导致建筑能耗、热不适、室内空气质量问题和诉讼的显著增加。工程师们经常避免使用地源热泵，因为他们认为没有可接受的方法来调节通风空气。然而，目前所有类型的加热和冷却系统都存在这个问题。决策可能基于设计条件下的系统性能，而不考虑季节性能耗。采用箱温法对室外空气处理系统的能耗进行了评估。Bin天气数据（ASHRAE 1995）以一种可以包含psychro的格式呈现- 冷却和加热盘管以及能量（或热量）回收设备的计量分析。该方法用于比较阿拉巴马州伯明翰一栋四层办公楼的五种设备选项，该办公楼每周占用40小时。季节性能耗最低的是空气-空气热回收热泵，其次是传统的DX冷却/加热炉、热回收轮、水-水热泵和板式换热器热回收装置。事实证明，“自由冷却”模式是一种有价值的选择。单元:双引文:研讨会，ASHRAE交易，第105卷，第。1999年2月2日，西雅图

High outdoor ventilation air requirements can lead to significant increases in building energy use, thermal discomfort, indoor air quality problems, and litigation. Engineers often avoid ground-source heat pumps because of the perception that there are no acceptable methods for conditioning the ventilation air. However, this difficulty is currently a problem with all types of heating and cooling systems. Decisions may be based on system performance at design conditions without regard to seasonal energy consumption. The bin temperature method was used to evaluate the energy use of outdoor air treatment systems. Bin weather data (ASHRAE 1995) is presented in a format that can incorporate psychro-metric analysis of cooling and heating coils and energy (or heat) recovery equipment. The method was used to compare five equipment options for a four-story office building in Birmingham, AL with a 40 hour per week occupancy. The lowest seasonal energy consumption was found to be an air-to- air heat recovery heat pump followed by a conventional DX cooling/furnace, a heat recovery wheel, a water-to-water heat pump, and a plate heat exchanger heat recovery unit. An economizer, "free cooling" mode proved to be a valuable option.Units: Dual