Data from Obermair and Staudinger

Obermair and Staudinger have performed measurements on a cyclone having a variety of dust outlet configurations. For illustration purposes, one was selected for simulation herein and its geometry and dimensions are shown in Fig. 6.A.5. Physical property and flow data at test conditions follow. 

The Muschelknautz method provided the following results. As in the preceding example the slope of the grade-efficiency curve was set equal to 5.0. 

The model predictions of the cyclone s grade-efficiency curve are shown in Fig. 6.A.6. The model is seen to predict actual performance quite well for particle sizes greater than about 2 pm but overpredicts actual performance for smaller sized particles. In this case, the model predicts a mass loading effect for the smaller sized particles that is larger than what was observed. 

The measured total pressure drop in this particular study was 1297 Pa. The model predicts 1759. The measured overall collection efficiency was 83.1%. The model predicts 88.5%. 

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