×
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

Vacuum Situation

Vacuum Situation

Vacuum Situation

(OP)
Does the vacuum situation have to be considered during designing a steam pressure vessel, which the vessel will be calculated with external pressure?

If the answer is yes, how to verify the stength of non-circular cross section subject to vacuum pressure?

Thank you!

RE: Vacuum Situation

Usually the pressure vessels containing steam, are designed for vacuum, due to the internal pressure drop during the steam condensation, with the temperature drop. That is, the vessel shall be designed for external pressure to a maximum of - 1 barg.
Vessels of noncircular shells are described in the ASME VIII Div.1 Appx. 13.

Cheers,

gr2vessels

RE: Vacuum Situation

(OP)
Sorry, what about the noncircular head?

RE: Vacuum Situation

ChinaZh,

You have to read entire Appendix 13 referenced in the previous reply, to have an understanding of the design of noncircular vessels. The mentioned Appendix 13, under the clause 13.4 (f) is indicating the relevant design method for the noncircular heads. But first please read the Code.

gr2vessels

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