ANALYTICAL SIZING OF A WIRE MESH DEMISTER

As known wire mesh demisters can supply high efficiency of separation (it's common to separate droplets till 3 microns of diameter) with low pressure drop but, to obtain the best performances, it's very important a proper sizing of the separators. Thanks to AFP ProCalcDem, our analytical method of calculation, and on the base of process conditions and fluids caracteristichs we supply to our customers two different services:

- checking of a old wire mesh separator: the customer supplies us the process datasheet and the features of the separator. On that base our technical office checks efficiency and pressure drop of the process and the dimensions of the separator.
- sizing of a new separator: the customer, giving us the process datasheet, needs to define the type of separator and its dimensions to obtain the requested efficiency, the right pressure drop satisfying some dimensional limits as well. 

On the base of our calculation, if it's necessary, we can suggest changing at the separators or at the vessel or confirm what was defined in the datasheet. Moreover we can supply an official document where we describe the process efficiency in terms of limit of separation and pressure drop at the process conditions.

VANE PACK SIMULATION

The best approach at the vane pack sizing is nowadays the simulation of the gas flow made with a model. Through this method it's possible to see what really happens inside the pack during the process studying the particles tracking and the behaviour of the flow.
In this way it's possible to choose, customize and optimize the kind of the vane pack being sure about the achievement of the performances reducing costs as well.

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CFD 4
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CFD 1
CFD 2 1

Samples of simulations using different vane profiles and conditions

COMPARISION OF DIFFERENT CONDITIONS

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Simulation of different gas flows through a vane pack