气流窗单元结合了节能门窗和太阳能集热器。它们通常由双层玻璃外窗扇和单层玻璃内窗扇组成，中间有百叶窗。来自房间的回风通过内窗扇的缝隙进入窗户，然后空气返回建筑物的中央暖通空调系统。气流窗系统不仅在冬季和夏季条件下提供了更好的热性能和空间舒适性，而且还提供了出色的采光利用率。除了供暖、制冷和采光的节能外，通过减少HVAC设备的容量，还可以节省大量的初始成本。本文讨论了气流窗系统的评估，并展示了如何在不同的气流条件下使用气流窗系统- 空调系统，以实现能源效率。TRNSYS模拟程序已被修改，以便对窗户系统进行精确的能量和性能分析，以适用于不同的建筑应用。本文的最后一部分介绍了美国三种不同气候条件下窗户系统性能的位置对比计算结果。引文:研讨会论文，佐治亚州亚特兰大，1984年

Airflow window units are a combination of energy-efficient fenestration and solar collectors. They typically consist of a double-glazed outer sash and a single-glazed inner sash, with venetian blinds in between. Return air from the room is admitted to the window through a gap at the inner sash, then air is returned to the central HVAC system of the building.The airflow window system not only provides improved thermal properties and space comfort both in winter and summer conditions, but it also gives excellent daylighting utilization. In addition to energy savings of heating, cooling, and daylighting, considerable initial cost savings are also obtained in the reduction of capacity of the HVAC equipment.This paper discusses the evaluation of the airflow window system and shows how the window system has been used with different air-conditioning systems to achieve energy efficiency.The TRNSYS simulation program has been modified to make accurate energy and performance analyses of the window system available for different building applications. Results of locations comparative calculations concerning window system performance at three different and climates in the United States are presented in the last part of the paper.