Calculation of the efficiency of high-flow fiber pad filters

Abstract

66.07.611.127/78 In [1 ], we proposed a method for calculating the efficiency of high-flow fiber pad filters, based on assuming a dominant role for an inertial settling mechanism. Numerous later studies both on experimental test benches and under industrial conditions confirmed the dominant role of an inertial settling mechanism for filtration rates of a gas stream in fiber pad filters greater than 1-2 m/sec.The experimental studies were done on an apparatus described in [2] using oil mist. As the filtering materials, we used vinyl plastic and metal wire meshes and also felts made from Lavsan fibers [polyethylene terephthalate].The perforated vinyl plastic meshes had holes of different configurations (circular, diamond-shaped). The characteristics of the vinyl plastic meshes are given in Table 1 . Specimens No. 4 and No. 5 were made from a flat mesh (specimen No. 1) by hot (specimen No. 5) and cold (specimen No. 4) corrugation by pressing, so the dimensions of the holes are almost identical