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ajayjain90
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Join Date: Jan 2008
Posts: 3

HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/27/2008 6:34 AM

Hello friends,

I want the formula to calculate the capacity in cfm of a suction blower (ID FAN).

sample blower specs : Dia of Impeller - 24", Nos of blades - 12, Width of impeller 12", Inlet of impeller 12", Outlet of blower duct - 16"x14", inlet of blower duct - 10", Hp of motor - 20 HP, RPM of motor - 1400 RPM

Vice versa I want to knw how to design a suction blower fan to draw 25000 cfm air via round duct of 14" dia running 200 fts in length. (or else you can take other necessary dimensions) Basically i want to know the formulas.

Thanks in advance, Jain Ajay
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Pathfinder Tags: DESIGNING BLOWER FANS
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nick name
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Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#1

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/27/2008 1:41 PM

Why don't you look in a data sheet from a manufacturer? There is not a formula for this handling fluids is a complex problem and it will always be better to ask for a delivery instead of making a design which has too many chances to be a failure.

In the data sheets you have all what a user can want to have to solve his problem and the manufacturer normally brings his help and it is a professional help since he has the experience you do not have.
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ajayjain90
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Join Date: Jan 2008
Posts: 3
#2
In reply to #1

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/28/2008 4:31 AM

Thanks for the advice sir,

But i want you to help me with my question if you can. Its a question for a problem. I don't want alternate solutions.

Thanks
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nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#3
In reply to #2

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/28/2008 5:01 AM

If it is a "problem" then it is most probably a home work for school in this case the best for you is to make the effort to learn going along the path i indicated.

This is not a place where professionals do the home work of different students. We can give recommendations, hints we can counsel but not do the work you have to do it will not be the right help for your personal development.
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ajayjain90
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Join Date: Jan 2008
Posts: 3
#4
In reply to #3

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/28/2008 5:14 AM

ok sir then can u recommend any site from where i can download different manufacturer data, wherein i can get the detailed description of different blowers so as to do my own home work myself.

thanks
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nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#5
In reply to #4

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/28/2008 9:19 AM

You have a tool to use it is a search engine named "google" in seconds you get a huge amount of informations.
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Mr. Guy
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Join Date: May 2007
Location: Los Angeles area, California, USA
Posts: 202
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#6
In reply to #4

Re: HELP FOR DESIGNING BLOWER AND CALCULATING CAPACITY OF id BLOWER FANS

01/28/2008 11:52 AM

www.hartzellfan.com will give you a world of data..........or ask for a cataloge.

Lots of charts and data...........find what fits your question.

MR. GUY

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