Resuspension of multilayer graphite dust particles in a high temperature gas-cooled reactor

摘要: Abstract The resuspension characteristics of graphite dust particles have a significant effect on the safe operation and source analyses HTGR. present study presents theoretical model for multiple layers based Rock'n'Roll multilayer approach Friess Yadigaroglu (2001). is then used to analyze influences various physical properties such as number particle layers, coolant temperature operating pressure characteristics. results show that increases, fraction decreases up critical after which remains constant with increasing layers. After second layer, increases from zero maximum decreases, decreasing Larger higher friction velocities more easily detach wall resuspend. For same helium velocity, temperature. will give rise particles.