Previous in Forum: Lab Setup On Robotics   Next in Forum: pumping
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
9 comments
Rate Comments: Nested
Anonymous Poster

Volume Of Air Flow And The Pressure Developed

11/29/2007 3:58 AM

Speed of a fan is 60m/s. what is the volume of air flow and the pressure developed?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: volume of air flow and the pressure developed

11/29/2007 5:09 AM

Depends upon a number of factors relating to the fan size, shape, impeller angle of attack, etc., etc.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
JohnDG
Guru
United Kingdom - Member - Not a New Member Hobbies - Musician - New Member Hobbies - Fishing - New Member

Join Date: May 2006
Location: Reading, Berkshire, UK. Going under cover.
Posts: 9684
Good Answers: 468
#2

Re: volume of air flow and the pressure developed

11/29/2007 7:04 AM

"Speed of a fan is 60m/s" - do you mean the airflow, blade tip speed, or what? Or is the fan moving?

__________________
 "Love justice, you who rule the world" - Dante Alighieri
Reply
Anonymous Poster
#9
In reply to #2

Re: volume of air flow and the pressure developed

12/08/2007 2:47 AM

limit switch question,,,,,i have a wood burning furnace,never understood those limit switches,3-dials on a rotary disk,,, how do i control when fan cycles on and off?
Reply
FKIA
Power-User

Join Date: Jul 2007
Location: Somewhere in the hills of Pennsylvania, I think.
Posts: 246
Good Answers: 4
#3

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 12:32 AM

Another homework assignment???

__________________
 I'm somewhere between the age of thirty-something and Alzheimer's. I just can't remember where!
Reply Off Topic (Score 5)
Kwetz
Guru
Spain - Member - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Oct 2007
Location: Madrid, Spain
Posts: 716
Good Answers: 25
#4

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 4:54 AM

I think there is some misinformation.

Fan speed, as any other turning machines, use to be given in RPM. You give us a linear velocity that is not possible to know to what thing correspond.

As said before by other colleagues, you need give more information.

What about measuring the air velocity? It's very simple and normal flow equations will give you the information requested.

__________________
 It's stupid to discuss about AI: We´ve reached by the "B" way. We' ve producing men as clever as machines.
Reply
Ferrari_Guy
Associate
Engineering Fields - Piping Design Engineering - New Member

Join Date: Jul 2007
Location: Vegas Baby
Posts: 29
Good Answers: 2
#5

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 10:50 AM

I wont even answer this ons........
Reply
Beej50
Power-User
Engineering Fields - Piping Design Engineering - New Member Australia - Member - New Member

Join Date: Aug 2007
Location: Childers, Queensland
Posts: 412
Good Answers: 5
#8
In reply to #5

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 7:15 PM

But you did..........and quite correctly!

__________________
 "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!" Douglas Adams 1952-2001. E&OE!
Reply
agua_doc
Guru
Engineering Fields - Retired Engineers / Mentors - New Member

Join Date: Dec 2006
Location: Brecksville, OH
Posts: 1621
Good Answers: 18
#6

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 6:15 PM

There is way too little information given to even attempt a reply. Please give us more information so that we may be of help. What do you really want to know?

__________________
 "Consensus Science got us into this mess, then why can't it get us out?" : Rephrase of Will Rogers Comment
Reply
Beej50
Power-User
Engineering Fields - Piping Design Engineering - New Member Australia - Member - New Member

Join Date: Aug 2007
Location: Childers, Queensland
Posts: 412
Good Answers: 5
#7

Re: Volume Of Air Flow And The Pressure Developed

11/30/2007 7:13 PM

Ok, so we will take it that it is the AIR speed that is 60m/s. To know the VOLUME of air moved, we need to know the diameter of the 'conductor' i.e. pipe! If you provide this information, we can at least answer a part of the question.

To answer 'the pressure developed' will require information on the down stream 'SYSTEM' and the type of fan etc.

__________________
 "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!" Douglas Adams 1952-2001. E&OE!
Reply
Reply to Forum Thread
Have a Different Question?
9 comments
Copy to Clipboard

Users who posted comments:

agua_doc (1); Anonymous Poster (1); Beej50 (2); Ferrari_Guy (1); FKIA (1); JohnDG (1); Kwetz (1); PWSlack (1)

Previous in Forum: Lab Setup On Robotics   Next in Forum: pumping

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (57 right now)
Show Members
Advertisement