×
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

MAWP of tubesheet

MAWP of tubesheet

MAWP of tubesheet

(OP)
Hello,

can anyone tell me how to calculate MAWP for tubesheets??

RE: MAWP of tubesheet

Under Part UHX, no :)

Regards,

Mike

RE: MAWP of tubesheet

Tubesheet calcs are extremely complicated and I would advise against trying to do them by hand.

If you do make the attempt, you must closely follow the rules of UHX, taking into account the type of tubesheet (floating, fixed, U-tube), expansion cases, mating bolt load, etc. Follow UHX very carefully.

RE: MAWP of tubesheet

abhimech1991, as others have stated there are number of different calculations for this. If the tubesheet is on a boiler it would be calculated using ASME Section I or IV. The ligaments, pitch, spacing, stay rods/bolts all have to be taken into account and can greatly change these equations. The only time I've attempted these by hand were to pass the National Board test, and wouldn't attempt them by hand unless you're extremely familiar and comfortable with these codes.

RE: MAWP of tubesheet

You wouldn't necessarily have to do these by hand, but what you would have to do is define the proper conditions under which to perform the calculations.

For example, shell & tube exchanger, MAWP for tubesheet, Part UHX. When calculating MAWP for one side, what is the condition for the other side? Is it at zero pressure? Operating pressure? Design pressure? Do you increment pressure for both sides at the same time, i.e. both sides at respective "MAWP"? Pressure only conditions? Pressure plus thermal expansion?

Who knows, I won't touch it. MAWP is design pressure. Period.

Regards,

Mike

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