SIMULATION OF THE REGENERATION OF DUST FILTERS

Periodically regenerateable cake-forming filters have assumed a commer cially dominant role in air purification because of their excellent du st collection capabilities. However intensive experimental investigati ons are usually necessary to optimally design such filters due to the absence of calculation models. In this work an extended computer simul ation model is presented, which is capable of simulating the whole fil tration (an alternate succession of filtration and regeneration of the filter medium), With this model the long-term behaviour of such a fil ter 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 ins ide the filter medium which cannot be removed anymore. (C) 1998 Publis hed by IMACS/Elsevier Science B.V.