4 replies to this topic

[sukanta87]

Hi,

 

Would anyone suggest what should be or usual maximum allowable velocity through the filter cartridges?

In some cases the dimension of liquid reservoir become larger than filter vessel to fulfill a required volume. Does that looks good?

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Edited by sukanta87, 02 June 2014 - 05:59 AM.

[sebaversa]

Dear sukanta87.

 

I've an old chart for actual volume flow through cartridges (it would be the same as velocity), so you can properly predesign this equipment for a generic type of cartridge.

I can't attach the image, but you can build it with Excel as follows:

- X-axis is flowing pressure [psig]

- Y-axis is flow limit (capacity) [CFM/ft^2]

- The relationship is linear, and two points as follows:

  a) (600 psig; 30 CFM/ft^2)

  (1100 psig; 10 CFM/ft^2)

- Chart range: 0 - 1200 psig; 0-50 CFM/ft^2

 

That's all the information you need!

After that, you should be aware of provider's proposal because they ussually don't like to share design information for their cartridges.

 

Hope this helps,

 

Sebastián

[Propacket]

Refer to GPSA Chapter 7, use Souders Brown's equation with K Factor of 1.3 ft/s. It will give you approximate diameter of the filter.  

[sukanta87]

Thanks sebaversa and propacket.

 

Sebaversa, your methodology is useful and makes sense for preliminary design. Yes, provider's recommendation is specific.

Propacket, does this K factor useful for filter catridges? It seems enough higher. In GPSA, there are some values for mesh pad and vane type mist eliminator.

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[sebaversa]

Thanks sebaversa and propacket.

 

Sebaversa, your methodology is useful and makes sense for preliminary design. Yes, provider's recommendation is specific.

Propacket, does this K factor useful for filter catridges? It seems enough higher. In GPSA, there are some values for mesh pad and vane type mist eliminator.

Glad to help!

Good luck!