Abstract

The goal of this study was to investigate the effect of using stainless steel fibrous and porous filters as the ground electrode of a point-to-plate electrostatic precipitator on particle penetration. The effect of filter medium structure and pore size on particle removal has been investigated as a function of particle size for particles in the range of 0.03 to 1 w m and filter face velocities in the range of 15 to 75 cm/s. Furthermore, the effect of filter thickness on penetration reduction was investigated in order to develop a better understanding of the relationship between the filtration depth, filter face velocity, and particle size for each filter. Seven different filters were tested. Four of the filters were made of 316L SS sintered metal fibers and three were made of 316L SS metal powders. The pore sizes of these filters ranged from 6 w m to 100 w m. The application of the electrical field decreased particle penetration by a factor of 6 to 54, depending on filter type and filtration velocity, wit...

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