Question

What are the components of pressure drop under cyclone operation? [3 marks]

Answer 1

The pressure drop over the cyclone is caused by area changes, wall friction, change of flow direction and the dissipation in the vortex finder. Because of these effects, the pressure drop mainly composed of following parts.

delta P1 - entry pressure loss at the tangential inlet duct

delta P2 - the frictional loss along the total spiral distance in the outer vertex, causee by the wall friction.

delta P3 - the pressure caused the change of air flow direction from outer vertex to inner vertex.

detla P4 - the entry pressure loss from the point that the air enters the inner vertex to the point that air leaves the outlet tube