R. Pan and P.W. Wypych presented test
design procedure for low-velocity slug flow
pneumatic conveying of bulk solid materials with
irregular-shaped materials like muesli, maize germ
[17]. Based on the particle properties and data from a
simple vertical test chamber, the pressure drop and
slug velocity in low-velocity slug flow can be
predicted accurately by this method in large-scale
systems. Experimental analysis was carried out by
Jens Reppenhagen , Arwed Schetzschen, and
Joachim Werther [18] to find the optimum cyclone size with respect to the fines in pneumatic conveying
systems. Two different design aspects for cyclones
were considered. The first aspect was to keep the
product as free of fines as possible and the second
one was to minimize the cyclone loss rates. Besides
the mechanisms of the true gas-solids separation, the
production of fines due to particle attrition was
identified to affect these two aspects.