×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Overpressure due to thermal expantion of a liquid in a piping.

Overpressure due to thermal expantion of a liquid in a piping.

Overpressure due to thermal expantion of a liquid in a piping.

(OP)
My issued is the following,
In a pipeline if you have two valves in both ends and these valves are closed what would happend if the radiation of the sun hit the pipeline all the day.....what is the maximum pressure that can rise up the pipeline......

RE: Overpressure due to thermal expantion of a liquid in a piping.

Would depend on the initial temperature, the final temperatures, the fluid properties, the piping materials, etc., none of which you have identified.

The rule of thumb is that if equipment is operating full of liquid, the equipment should be provided with a thermal relief valve if the volume of blocked-in liquid is greater than 0.5 m3.

Review this document:

http://www.chemwork.org/PDF/papers/what%20you%20sh...

You might try searching the site as this has been discussed:

http://www.eng-tips.com/viewthread.cfm?qid=393399

RE: Overpressure due to thermal expantion of a liquid in a piping.

Very high pressure, but most pipelines are buried and hence don't have that problem. See this for a calculation www.eng-tips.com/faqs.cfm?fid=1339

Of course it depends on the start pressure, the fluid and what are the start and end temperatures.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources