×
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

Vaccum due to steam condensation in a pipe

Vaccum due to steam condensation in a pipe

Vaccum due to steam condensation in a pipe

(OP)
Hi,
I am working on tube side of the heat exchanger. In the case of tube side is blockd-in and the tube side contains steam. A vacuum will form due to the steam condensation as the shell side of the cold fluid continue. I am trying to find the vacuum due to steam condensation in the pipe.

Could you please help me in finding that.

Thanks.

RE: Vaccum due to steam condensation in a pipe

That is why you normally specify that the tubes must be good for Full Vacuum.

RE: Vaccum due to steam condensation in a pipe

(OP)
Thanks SeanB. But unfortunately tube side is not designed for full vacuum, tube side designed for 2.5psig vacuum. I know that the vacuum created due to steam condensation can be handled by the tubes. But I have to show how much vacuum will be created.

Thans

RE: Vaccum due to steam condensation in a pipe

It's a constant volume process.

I2I

RE: Vaccum due to steam condensation in a pipe

After the steam condenses the pressure in a blocked in exchanger would drop to the vapor pressure of water at what ever temperature the other medium in the exchanger is.   Unless you are lucky enough to have some air trapped in the exchanger but I don't think you can count on that to save you.

Regards
StoneCold

RE: Vaccum due to steam condensation in a pipe

In any event, you'll require a vacuum breaker on the steam side for operational purposes.

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