Previous in Forum: Financial Planners and Conflict of Interest   Next in Forum: Alternate Means of Communication
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
5 comments
Rate Comments: Nested
Anonymous Poster #1

Max. Allowable Velocity

05/22/2012 5:40 AM

What is a maximum allowable velocity of gas to flow throgh pipe.
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: Max. allowable Velocity

05/22/2012 5:43 AM

"Allowable" or "economical"?

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Anonymous Poster #1
#3
In reply to #1

Re: Max. allowable Velocity

05/22/2012 9:57 AM

Its a allowable/permisible.
Reply
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
#4
In reply to #3

Re: Max. allowable Velocity

05/22/2012 11:17 AM

The economical range is 5-10m/s. If it's faster, the pipe is too small. If it's smaller, the pipe is too big.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: Max. Allowable Velocity

05/22/2012 9:15 AM

Depends on many factors.

PROCESS DESIGN OF PIPING SYSTEMS (PROCESS PIPING AND ...
Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#5

Re: Max. Allowable Velocity

05/23/2012 12:06 AM

If the velocity exceeds the speed of sound within the fluid, sonic effects such as standing waves can happen, along with choked flow. This will set some absolute upper limits in some instances. Lower velocities (a few or even few tens of feet per second) are primarily an economic matter. PWSlack's rule of thumb is pretty normal.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Reply
Reply to Forum Thread
Have a Different Question?
5 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); lyn (1); PWSlack (2); Tornado (1)

Previous in Forum: Financial Planners and Conflict of Interest   Next in Forum: Alternate Means of Communication

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
General Discussion:
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 (90 right now)
Show Members
Advertisement