Work was conducted on continuous phase model validation ona multi-blade centrifugal fan with a volute for domestic kitchenhoods. Its impeller consists of 60 forward single-arc blades. Theinlet and outlet angle of the blade were 79 and 163, respectively.The impeller outlet diameter was 0.25 m while the inlet diameterwas 0.21 m. The profile curve of volute is a logarithmic helix.Fig. 9. The comparison of the results of simulation and experiment for qV withdifferent orifice diameters of orifice plate..simulation