×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

how i decide to replace top shell of a fuel tank according to API653

how i decide to replace top shell of a fuel tank according to API653

how i decide to replace top shell of a fuel tank according to API653

(OP)
dear all
i will try to make my question clearer > the issue is a conic roof tank with capacity 10000m3 . the roof is severely damaged by corroding > we decide to replace the roof plates with new ones with same thickness of the designed roof thickness is 5 mm > the problem is that the top part of the shell is croded down to 4 mm while the design thickness is 6 mm >
mu question is >>>if i go on with repalcing the roof plates only we will have a tank with roof plate thicker than the top shell >>>is that acceptable !!! and if it is not acceptable can i take this issue as a resonable reason to Take a decision to replace both roof and top sell plates

i hope i make my issue clear enough
thanks for your Patience

RE: how i decide to replace top shell of a fuel tank according to API653

Roof thicker than the shell is not a problem in itself, and some tanks may be built that way.
Evaluation of shell thickness is usually per API-653. Hoop stress due to product is very low at the top of the tank, and that's usually the major issue.
It may be cheaper to replace both upper shell and roof at the same time than replacing the roof now and then the upper shell in another couple of years.

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close