ALTERNATE APPROACH TO SOLVING EXAMPLE

as an alternative, theZ)rt of 6.3 were to be achieved by increasing the inlet velocity, then Eq. (2) of Example A becomes 

Pressure drop through the cyclone in Fig. 23 is again calculated from the relationships in Fig. 21. As in Example A, 

This again exceeds the specified 10 F O maximum to a greater degree than the cyclone in Fig. 22, although it represents also a substantially smaller unit. 

Since neither design in Figs. 22 or 23 will satisfy the specified pressure drop limitation, the only alternative lies in reducing inlet width without increasing inlet velocity, which requires multiple cyclones operating in parallel as illustrated in the design of Example C. 

Example C. Suppose, in the previous Example B, performance must be achieved at a pressure loss less than 10 H20 requiring therefore multiple cyclones in parallel. 

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