Application of cyclone technology has been implemented in cement production since the construction because it is simple, low cost, reliability and stability both in high pressure environment and high temperature (900 oC). The ideal solution to improve the burning process is by optimizing the cyclone heat exchanger. The aim of this study is to see the effect of baffle plate for outlet duct to the outlet gas flow distribution in cyclone preheater CN1–A and CN1–B. Computational Fluid Dynamics is used for modelling the swirl turbulent flow inside the cyclone. The simulation shows It was found that by adding baffle plate (width between 250–300 mm) able to maximize the gas flow distribution and also improve the heat transfer and potentially to reduce the loss from heat loss by 0.9–1.3% (equivalent 588 – 722 billion Rupiah/year). Baffle plate also caused pressure drop in multicyclone system)

Keywords : Computational Fluid Dynamics, Efficiency, Cyclone Geometry, Pressure Drop, Dust Loss, Thermal Loss