The Performance Characteristic of an Air-separator of an Axial Flow Fan

Abstract

An air-separator as a new means for stabilizing the characteristics in the low flow rate region of an axial flow fan has been studied experimentally. The influence on the performance of this equipment of its parameters such as the structure of the flow passage and dimensions has been examined as well as the influence of hub-trip ratio of the rotor and the aspect ratio of the rotor blades. It is found that the equipment is useful even in such severe conditions that blade separators are useless.