更换离心式风机的叶轮是提高风机性能的一种经济有效的方法。本文探讨了通过安装和风机调试确定初始升级潜力，利用叶轮更换来提升风机性能的过程。所涵盖的主题包括:将转子与现有风扇罩匹配；满足结构和空气动力学性能目标；在交付升级部件之前展示风扇性能； 现场测试和组装问题；在现场演示风扇性能。引用:ASHRAE论文CD:2014 ASHRAE冬季会议，纽约

Replacing impellers in centrifugal fans can be a cost effective approach to upgrading the performance of the fan. This paper explores the process of utilizing impeller replacement to upgrade fan performance from identifying initial upgrade potential through installation and fan commissioning. The topics covered are: matching rotors to existing fan housings; meeting structural and aerodynamic performance objectives; demonstrating fanperformance prior to delivery of the upgraded components; field testing and assembly issues; demonstrating fan performance in the field.