×
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

Vessel Jacket Thickness

Vessel Jacket Thickness

Vessel Jacket Thickness

(OP)
I am designing a pressure vessel for hexane recovery and I want to calculate the thickness of the external jacket. The vessel is 0,6 barg and Hot water inside jacket is 100ºC and 8 bar.

Thickness = P*D/(2*K) + CA ???

Internal diameter of the vessel is 1,6m and K for CS at 140ºC (Design Temperature is 140ºC) is 184 MPa
Distance from the vessel to the jacket is 1 inch.

I am considering 1,5mm for corrosion allowance.

My question is : Is this equation applicable?
Diameter = 1,6 + 2*0.0254 ????

Thank you.

AndreChE

RE: Vessel Jacket Thickness

Andre,

The calculation of half-pipe wall thickness for a jacketed vessel is a bit more complicated.....

Because the vessel wall must also be evaluated as well as the half pipe, ASME Section VIII has written an appendix demonstrating the calculation method. This Appendix was based on an ASME paper developed by a Mr Jawaad of the NOOTER Corporation.

The book: "2001 Guidebook for the Design of ASME Section VIII Pressure Vessels, Second Edition" (by: James R. Farr and Maan H. Jawad) is available from the ASME website(www.asme.org)and it explains this method and is available for about $70

Most of the time, the qualification of the half-pipe is left to the vessel fabricator....most of the half-pipes I have encountered are Sched 40 CS or Sched 10S Stainless Steel

Are you adding a jacket to an existing vessel ?

Are you working for a vessel fabricator or is this kind of a unique project ?


MJC

RE: Vessel Jacket Thickness

(OP)
I'm involved in a project for Hexane Washing Unit in a HPDE plant. The project is still in detail Engineering and there was the idea, on a meeting, to decrease the Hot Water design pressure in order to decrease the thickness of the jacket. That calculation is being done by me.

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