Previous in Forum: cat 398   Next in Forum: District Steam and condensate piping
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
2 comments
Rate Comments: Nested
MOHD NAUSHAD
Active Contributor

Join Date: Apr 2008
Posts: 13

About chilled water riser piping velocity and friction loss

06/02/2008 9:48 AM

1.what is the velocity,friction loss we have to maintain in riser piping.

2.On what basis we have to select two way or three way motorised valves.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Anonymous Poster
#1

Re: About chilled water riser piping velocity and friction loss

06/02/2008 10:01 AM

http://en.wikipedia.org/wiki/Darcy_Weisbach_equation
Register to 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: 32209
Good Answers: 839
#2

Re: About chilled water riser piping velocity and friction loss

06/02/2008 10:28 AM

As a rule of thumb, maintain the velocity of any liquid between 1 and 3 metres per second in pipework. If it falls outside that range, then a pipe size change might prove immediately economically attractive.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
2 comments

Previous in Forum: cat 398   Next in Forum: District Steam and condensate piping

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 (132 right now)
Show Members
Advertisement