Comparative Study on One-Dimensional Models for Particle Collection Efficiency of a Venturi Scrubber

A wet type filtered containment venting system of a nuclear power plant uses venturi scrubbers submerged in a water pool to enhance the efficiency of collecting particulate aerosols from a gas effluent discharged from a containment after severe accidents. This paper describes a comparative study of three typical one-dimensional semi-empirical models on their predictive capability for particle collection efficiency of the venturi scrubbers. Laboratory and pilot scale experimental conditions are used for the model predictions with major parameters of particle size, gas velocity and flow rate. Among these three models, Yung’s model is found best performing for the range of the physical parameters considered.