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wrm62
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Join Date: Jun 2009
Location: Texas
Posts: 1

Blower Blade Design

06/26/2009 10:44 AM

I am trying to do some analysis on centrifugal air blowers. The end result that I would like is a set of formulas and spreadsheets that will allow me to design a set of blades and choose a motor based on a desired output. I already have most of what I need, but what I am missing is a formula that relates blade surface area, curve radius and position angle to the volume of air that it will move. I would greatly apreciate any help that is offered. Thank you.

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chrisg288
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#1

Re: Blower Blade Design

06/27/2009 12:18 AM

I think that most suppliers of fans will provide the essential information in their performance curves. What you are looking for is something like the K factor, but it is unit specific, and not calculatable. I believe OEM's develop these tables by testing.

Chris.
sanjaykangralkar
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#2

Re: Blower Blade Design

06/27/2009 2:12 AM

ya ! i am also thirsty for the same info.

Some mfg. says it as an art to design centrifugal fan, is it?
phoenix911
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#5
In reply to #2

Re: Blower Blade Design

07/13/2009 1:27 PM

its called empirical information, they take a constructed fan, test it and pull information off of it, HP draw, CFM, pressure

phoenix911

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ronseto
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#3

Re: Blower Blade Design

06/27/2009 11:17 AM

Check this site. Sounds like you are designing a dust collector system.

http://billpentz.com/woodworking/cyclone/Index.cfm

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#4

Re: Blower Blade Design

07/13/2009 11:42 AM

Do you have any need for an excellent wear material for dirty fans. We can vastly reduce wear in most applications (dust, coal dust, coal ash etc...)? We're a small company in Washington State, but have customers all over the world. If you want more information please write me at bc101jc@comcast.net . I will email you a link to our website and will not contact you unless you need further infor.
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You might be interested in: Industrial Fans and Industrial Blowers, I/Q Modulators and I/Q Demodulators, Microprocessor Chips (MPU)


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