Determining the Pressure Drop in Single-Phase Flow - Final Equation

Determining the Pressure Drop In Single-Phase Flow - Final Equation 

Based on the value (pp 0.28, which is valid for metal PaU rings, Eqs. (3-28) and (3-25) now lead to the final equation for determining the pressure drop in single-phase flow through random and structured packings [34,35]  

To apply this equation, which is based on the evaluation of experimental data and valid in the range of Reynolds numbers Rey (200-20000), it is necessary to ascertain the geometric packing data a and s as well as the proportion of the perforated surface area of the packing wall (pp. This parameter is a form-specific packing factor, also known as form factor (pp. 

The same table also contains the numerical values of the form factors (f p,exp for more than 200 types of packings, which were determined by evaluating experimental pressure drop data relating to packings with single-phase flow. 

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