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!

*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.

Jobs

Reactor Containment Dome

Reactor Containment Dome

(OP)
Why the nuclear reactor containment dome is generally hemispherical in shape? Why not flat or circular?

RE: Reactor Containment Dome

In the case where the wall thickness is used to resist internal pressure, the wall thickness is minimized if a hemispherical shape is used. Of course, the true optimization of any large plant is to minimize cost ( while maintaining reliability and safety objectives), and it likely follows that the minimum wall thickness yields the lowest cost.

"Nobody expects the Spanish Inquisition!"

RE: Reactor Containment Dome

Pressurized Water Reactors PWR containment is a pressure vessel based upon a design basis accident DBA
That DBA is a primary or secondary coolant weld breaks which vents the coolant which converts to steam in a very short time. The containment is designed to hold that steam and water mixture. Then cool the entire system to a safe state.
The shape is the same shape as a gas bottle for the same reasons.
The demonstration reactors (<100 mWe) actually had sphere shaped containment structures for the same reason.

Hydrae

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


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