Design optimization of a centrifugal fans and enhance efficiency and effectiveness of its service life (Case study of type Backward Centrifugal Fan)

Abstract

This research studies bearings damage case of centrifugal fan, these fans are characterized by high flow and power as they are used in dust extraction systems from factories.

Analyzing the causes of bearings damage before the end of their service life, which causes sudden stops for the fan’s work, Vibration velocity and temperature readings for bearings and fan body were taken for compared to the values if it is within the good limits according to ISO 10816, and monitor grease type and periods for the bearings according manufacturing, during the operation of the fan.

The research included the effect of the quality of grease in reducing the level of high vibrations and thus reducing friction and prolonging the service life of the bearings, including reducing maintenance costs.