Blower for Cyclone

[garethharvey]

About to start to build my own cyclone, I have sourced a cyclone and bin, was going to connect this up to my existing extractor but really don't think it will be powerful enough.

I have found this though: http://fans-uk.aircontrolindustries.com/technical/EV-BPR351-B|50

This is a 3hp fan, 2.2Kw so would be OK on my circuit. This moved 4000 cubic metres of air an hour which should be good, I am struggling to get my head around the static pressure.

Any ideas what this is?

 

[MattRoberts]

Whilst I'm no expert in fluid dynamics, I believe static pressure refers to the effort needed to push the air around the system.

The higher the pressure, the more effort needed and the lower the air flow. So if you have ducting with long runs, a cyclone and lots of twists and turns, the static pressure will be higher and the air flow will be slower

 

[Si Peace]

Hello mate, this spreadsheet is pretty informative on the subject of static pressure for a woodworking shop (link below).
Incidentally I just scratch built a cyclone from 0.75mm lexan and plywood. I'm pulling through a 1HP blower and filter in a small shop with 100mm steel ducting to 4 machines (blast gates on each). It's super efficient. So for a small shop I think the preference for >2HP blowers might be overkill.
I can supply photos and Sketchup model if required.

Static pressure spreadsheet:
https://www.google.co.uk/url?sa=t&sourc ... 6UnJc7R-bQ