The paper presents a set of parametric studies performed on a coal pulveriser by means of scale model classifier. In this study, there were two aspect of geometry have been investigated, the number of vanes and the length of vortex finder. This study has been conducted using ANYSY FLUENT 14.0. The study includes the initial classifier model with 12 vanes and 230mm vortex finder length. An experimental result used to validate the Computational Fluid Dynamics (CFD) result. Velocity measurements were taken at different axial locations within the scale model classifier. In conclusion, the two sets of data indicate good agreement and show the utility of CFD as a rating and design tool for coal pulveriser manufacturers. This work also shows that simplified experimental and computational models can be used to assist in the designing of a fully functional coal air classifier.
