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Dust particles precipitation in AC/DC electrostatic precipitator

2015; IOP Publishing; Volume: 646; Linguagem: Inglês

10.1088/1742-6596/646/1/012031

1742-6596

A. Jaworek, Artur Marchewicz, A. Krupa, A.T. Sobczyk, T. Czech, Teresa Antes, Łukasz Śliwiński, M. Kurz, Michał Szudyga, W Rożnowski,

Icing and De-icing Technologies

Submicron and nanoparticles removal from flue or exhaust gases remain still a challenge for engineers. The most effective device used for gas cleaning in power plants or industry is electrostatic precipitator, but its collection efficiency steeply decreases for particles smaller than 1 micron. In this paper, fractional collection efficiency of two-stage electrostatic precipitator comprising of alternating electric field charger and DC supplied parallel-plate collection stage has been investigated. The total number collection efficiency for PM2.5 particles was higher than 95% and mass collection efficiency >99%. Fractional collection efficiency for particles between 300 nm and 1 μm was >95%.