Simulation of the regeneration of dust filters Original Research Article

Periodically regenerateable cake-forming filters have assumed a commercially dominant role in air purification because of their excellent dust collection capabilities. However intensive experimental investigations are usually necessary to optimally design such filters due to the absence of calculation models. In this work an extended computer simulation model is presented, which is capable of simulating the whole filtration (an alternate succession of filtration and regeneration of the filter medium). With this model the long-term behaviour of such a filter was examined and it was found that the compressibility of the dust has a major influence on the operation costs: The more compressible a dust is the sooner the filter has to be replaced due to particles inside the filter medium which cannot be removed anymore.