If you want to calculate particle degradation for carbon black

in pneumatic conveying systems. Best way is to do full scale tests

on a test rig. Particle degradation is dependent on a number of factors.

Air Velocity,

Suspension density,

Number of bends / fittings,

Bend radius.

The other method is to do particle impact tests. There is published work available on particle degradation use science direct database. (Try Greenwich, Surrey and Sheffield Universities research groups). A number of papers on simulations are also available to predict degradation. ■