Comparison of Numerical and Experimental Results for Multiphase Flow in Duct System of Thermal Power Plant

 

Mirko Kozić

Slavica Ristić

Mirjana Puharić

Boris Katavić

Mirjana Prvulović

 

This paper presents the numerical simulation results of the multiphase flow in the ventilation mills of Kostolac B power plant, where blinds and centrifugal separators with adjustable blade angles are used. The numerical simulation was performed using the mixture model in the Euler-Euler approach of commercial ANSYS FLUENT software package. The gas mixture distribution and the velocity of sand particles in the mill and duct system are given  in the paper. The results of the numerical simulations are compared with the measurements for both types of separators. Based on the numerical results, the critical locations exposed to the most intense wear in the mill and duct system are determined.

Key words: fluid dynamics, fluid flow, multiphase flow, ventilation system, ventilation mill, gas mixture, numerical methods, numerical simulation, power plant.