cema handbook si unit - lemasderoquegrise.fr
2.2 Alternative formula given by CEMA. The CEMA association gives the capacity of a screw conveyor as : C = 0.7854*(D s 2-D p 2).P.K.60/1728. With : C = capacity in ft3/h/rpm D s = Diameter of the screw flight in inches D p = Diameter of the pipe -shaft - supporting the screw flight inches P = pitch of the screw in inches K = percent trough loading