Experimental Investigation of the Effects of Helical Roof on the Performance of Stairmand High Efficiency Cyclone

Table 1

Dimensions of the cyclones.

Parameter	Symbol	Dimension (mm)	Ratio of dimension to body diameter
Inlet	a	58	0.5
	b	145	0.2
Body	hb	435	1.5
Cone	hc	725	2.5
Outlet	De	145	0.5
	S	145	0.5
Dustbin	B	109	0.375
Helical roof	H	145	0.5

D is the body diameter and is equal to 290 mm.