サイクロンセパレータの各種ホッパ形状による粒子挙動の変化

抄録

We numerically investigated the changes in the collection efficiency of a cyclone separator depending on the hopper shape, that is, the particle collection section. We performed LES (large-eddy simulation), using a two-way model that considers the interaction between solid particles and gas. We tested various hopper shapes, including cylindrical and conical shapes. While there were almost no changes in the flow and particle behavior inside the cyclone separator, the flow within the hopper differed, leading to a bias in the particle collection locations. In terms of the collection efficiency, the conical hopper was slightly inferior compared to the others. We will discuss the behavior and causes of particles that were not collected in the hopper and flowed out from the cyclone separator.