×
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

Heat transfer in pipe?

Heat transfer in pipe?

Heat transfer in pipe?

(OP)
Please bear with me, I have a structural background. If we are heating one end of an 18"Ø schedule 160 pipe to 225°F is there an equation that states the length of pipe until the heat dissipates and the pipe is back at the ambient temperature of 70°F? I imagine along the length of pipe it'll fall quickly to ambient temperature, maybe 6in away it is 200°F, 1ft at 150°F, 2ft at 100°F. Is there an equation that approximates this behavior and tells the length needed to return to ambient?

RE: Heat transfer in pipe?

Please refrain from double posting. If you want to save your other thread's content, you should ask the management to move the contents here

TTFN
FAQ731-376: Eng-Tips.com Forum Policies
[IMG http://tinyurl.com/7ofakss]
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

RE: Heat transfer in pipe?

No simple answers here, and the answer s very dependent on the fluid within the pipe, and its orientation (vertical / horizontal / sloped, etc.) plus heat flow up or down, ambient surroundings, wind or local turbulence, etc.

We have evaluated many transients of this sort in power plant practice, and much analysis is required to get realistic answers. Simple calculation approach often gives answers that are one or more orders of magnitude (factors of ten) in error.

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