中西部一所大学的化学建筑扩建工程的设计团队决定在整个扩建工程中使用可变容积的排气系统。由于设计概念是化学部门人员和建筑师/工程师所独有的，因此需要特别努力确保安装的协调性和可接受性。实验室在教学和研究设施中使用198个通风柜。办公室和激光实验室是直流可变容量供应和排气系统的一部分。在1988年设施启动期间，需要仔细协调测试、平衡和控制，以确保符合设计标准。引用:研讨会，ASHRAE Trans。，第95卷，第。2.

The design team for a midwestern university’s chemistry building addition decided to use a variablevolume exhaust system throughout the addition. Since the design concepts were unique to the chemistry department’s personnel and the architect/engineers, special efforts were required to ensure a coordinated and acceptable installation. The laboratories use 198 fume hoods in both the teaching and research facilities. The offices and laser laboratories are part of once-through variablevolume supply and exhaust systems. During the 1988 start-up of the facilities, carefully coordinated testing, balancing, and controlling were required to ensure the design criteria were met.