Analysis of the mass transfer characteristics of a chemical addition system

A numerical analysis has been performed to stud the mass transfer character istics of the chemical addition system for a nuclear power plant. The trans ient concentration profile of the chemical additives and the required time to inject the additives from the chemical injection tank have been investig ated using a low Reynolds number turbulence model. Calculations were also p erformed with a disk placed at various locations along the centerline of th e chemical injection tank to investigate the amount of reduction in injecti on time and to propose an optimal design of th chemical injection tank.