EDEM Research Spotlight- DEM Simulation of Granulated Metallic Powder Impact on a Spray Dryer Wall

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RESEARCHER

Kwon Joong Son

INSTITUTE

Hongik University, Korea

DEPARTMENT

Mechanical and Design Engineering

SUPERVISOR

Kwon Joong Son

TIMELINE

10/2016 - 10/2017

This project aims to investigate the influence of the rotational velocity of a rotary disc atomizer on the impact behavior of the granulated and spray dried metal powder. Given the size and striking velocity of a certain granulated powder, its impact on the spray dryer wall was computed using the discrete element method (DEM). Such simulation enables to predict whether the granulated powder preserves cohesion or not after a collision with the chamber wall. Losing cohesion (or being fractured) during spray drying means the decrease of a yield rate and productivity in the metal power granulation process. Hence, the simulation results of this project are helpful in the process design of granulated powder production.

Fig. 1. Granulated powder before collision

Fig. 2. Granulated powder during collision

Fig. 3. Granulated powder after collision

EDEM provides various contact models and convenient application programming interface both of which are useful in performing DEM impact simulations of a granulated powder on a rigid wall.

Kwon Joong Son

Hongik University

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