터널 내 전동차 운행에 따른 전기집진기 주위에서의 유동 및 오염입자 거동해석

초록

In this study, we numerically analyzed flow and particle transport near the electrostatic precipitator in the tunnelaccording to train runs. When there was no train running, flow field was formed by a precipitator. Flow emittedfrom precipitator blocks the path along the tunnel, and therefore most contaminated air passes through theprecipitator and can be cleaned. On the other hand, flow pattern during the train run was affected by train inducedwind. A strong straight flow was generated at the front of train, and back flow was formed in the opposite line. When a train runs upward only (train start from suction section to blow section), the subway train transportscontaminated particles along the tunnel. For downward train runs only case, the cleaned air reentered thecontaminated section with train wind. Both train runs case showed combined flow and particle concentrationpattern of both single train runs.

키워드