Abstract: “Classifier device is one of the most important parts of the coal fired power plants. Increasing the performance of the classifier is important to help reduce the emissions and increase the fuel efficiency. The project is involved in studying the flow characteristics in a 1/8 size model of an industrial classifier device. It is assumed that the pneumatic coal particles would follow the same path as the air particles and achieve the same velocities as the air particles. Tangential velocity of the swirling flow and the static pressure are measured at two perpendicular planes, and five different diametric locations are measured at each plane. All the measurements are taken for three inlet air velocities, and for each inlet velocity, three different vane angles are used. Based on the measured results, suggestions are made to improve the balance of the air flow, and for further investigations and improvements.”

Keywords: coal classfier, flow dynamics, experimental measurement, tangential velocity, vane angle