MODELING THE PERFORMANCE OF VENTURI SCRUBBERS

The performance of venturi scrubbers is expressed in terms of the pres sure drop and dust collection efficiency. The model of Azzopardi et al . (Trans. Inst. Chem. Eng. 69 (1991) 237) which incorporates many of t he phenomena of gas-liquid flow in the venturi has been extended in th is work to include dust removal prediction based on inertial collectio n. Pressure drop and dust removal predictions of this and previous mod els are compared to extensive data for the two main types of venturi w ith either liquid injection at the throat or a wetted approach. The re sults show the current model gives significantly improved predictions compared with previous models over a wide range of venturi sizes and o perating conditions. The effect of uncertainty in the major model para meters are investigated to identify the requirements for further work in this area. (C) 1997 Elsevier Science S.A.