Performance improvement of a horizontal zigzag type mist eliminator using slit plates

Abstract

In this study, the performance of a zigzag type mist eliminator with drainage channels was improved using slit plates. The collection efficiency of the mist eliminator was numerically investigated by considering the Eulerian-Lagrangian approach. The effect of the slit plates on the mist eliminator performance was evaluated by attaching a slit plate to the front of each drainage channel. The slit plates were used to continuously change the airflow direction, which can cause large droplets to deviate from the streamlines owing to their inertia and become trapped in the mist eliminator walls, thereby improving the capturing capability of the mist eliminator. The installation of the slit plates improved the collection efficiency of the mist eliminator for 2-μm droplets by more than 10 %. Furthermore, pressure drop in the proposed model was 5 %-10 % lower than that in the reference model.