When a fan is loaded with discharge damper is closed or no through opening
pass at the discharge, the pressure will be higher than the normal for the
flow. This cause, escape of air in between the casing and the blades from
discharge to suction. This will cause in reduction of pressure. The fan will
behave the same way. The pressure will increase and decrease and increase. This
is known as Stalling of a fan. The current also will behave in the same cycle.
If allowed, the blades may break and will cause a major demage.
No comments:
Post a Comment