Measurement of the collection efficiency of single dust-loaded filter fibers

At all conditions single fiber efficiency rises with increasing particle loading M (mass of deposited particles / fiber length in μg/mm), strong at low loading stages, which slows down at higher loading. Fig. 1 shows the efficiency increase at different velocities, alternatively Stokes inertia parameter (St). First, with rising of St, stronger increase of efficiency was found as a function of M. Further increase of St leads to the lower increase of efficiency due to slim structures and increased bounce of particles on deposited particles.