本文评估了小型办公室、带隔板的大型办公室、教室和工业车间的传统置换通风系统在美国热边界和流动边界条件下的性能，如高冷负荷。通过适当的设计，置换通风可以保持一个热舒适的环境，空气流速低，头和脚之间的温差小，不满意的人比例低。与传统的混合通风相比，当污染源与热源相关联时，置换通风可以在占用区域提供更好的室内空气质量。 空气的平均年龄越小，通风效率越高。根据斯堪的纳维亚国家的研究结果和作者对美国建筑的调查，本文提出了美国置换通风设计的指南。单位:双引文:ASHRAE交易，第105卷，第。1.

This paper evaluates the performance of traditional displacement ventilation systems for small offices, large offices with partitions, classrooms, and industrial workshops under U.S. thermal and flow boundary conditions, such as a high cooling load. With proper design, displacement ventilation can maintain a thermally comfortable environment that has a low air velocity, a small temperature difference between the head and foot level, and a low percentage of dissatisfied people.Compared with conventional mixing ventilation, displacement ventilation may provide better indoor air quality in the occupied zone when the contaminant sources are associated with the heat sources. The mean age of air is younger, and the ventilation effectiveness is higher. Based on results from Scandinavian countries and the authors' investigation of U.S. buildings, this paper presents guidelines for designing displacement ventilation in the United States.Units: Dual