입자의 형상에 따른 열영동 집진에 대한 실험적 연구

Abstract

Agglomerated and nonagglomerated SiO₂ particles are synthesized in furnace by the vapor feeding method for the test particle generator this study. These polydispersed particles are classified with DMA to extract equal mobility particles. Then these particles are introduced into Thermal Precipitator through the ESP(Electrostatic Precipitator) to see the thermophoretic particle deposition using NCs(Condensation Nuclei Counter). The efficiency of thermophoretic particle deposition according to agglomerated and nonagglomerated particles in Thermal precipitator has been studied as a function of particle size and TEOS mole concentration using monodisperse particles classified by DMA. The results show that the particle deposition efficiency decreases as TEOS mole concentration increases and particle size increases. Therefore, it is concluded that the thermophoretic deposition efficiency is dependent of the particle morphology.