Pressure Draft of the Cyclone:

\[ Pd = \frac{6.5 \cdot Da \cdot Vt^2 \cdot Ad}{Ds} \]

Where:

• \(Pd\) is the pressure drop in millimeters (mm).
• \(Da\) is the air density in kilograms per cubic meter (kg/m³).
• \(Vt\) is the velocity of air entering the cyclone in meters per second (m/s).
• \(Ad\) is the inlet area of the duct in square meters (m²).
• \(Ds\) is the diameter of the separator in meters (m).