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천중국,최금찬 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.1
This study has been carried out to investigate the filteration performance of E1ectrically Stimulated Fabric Filter at high temperature. The electric field was maintained parallel to the fabric surface. The benefits of ESFF are lower residual pressure drop, improvement of particle removal efficiency and increasing reduced rate of pressure drop during a filteration cycle, stable operation at higher filtering velocities. According to the variance of filtering velocity and dust loading, the results are summarized as follows; 1. By imposing an electric field on the filter, the reduced rate of pressure drop was 7∼18% at room temperature, and when filtering velocity was 1.8 m/min and dust loading was lg/㎥, the value of reduced rate of pressure drop was shown the highest. 2. By imposing an electric field on the filter, the reduced rate of pressure drop was 10~35% at high temperature, and when filtering velocity was 1.8 m/min and dust loading was lg/㎥, the value of reduced rate of pressure drop was shown the highest. Most of all, at high temperature, the value of reduced rate of pressure drop was 25%. 3. By imposing an electric field on the filter, the collecting efficiency was shown clearly. By the SEM photo analysis, the number of penetrated particles at the Conventional Fabric Filter was approximately two times that of Electrically Stimulated Fabric Filter.