×
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

Heat Exchanger Overpressurisation

Heat Exchanger Overpressurisation

Heat Exchanger Overpressurisation

(OP)
Hi, I wanted to get peoples thoughts on potential for a BLEVE like scenario on a bank of heat exchagers.

For a BLEVE we assume we need a level within the 'vessel' and a form of heating most likely a pool fire.
On the heat exchanger bank the most likely cause of pool fire would be through a flange leak.

I am interested to hear peoples thought on the behaviour of the heat exchangers when subjected to a pool fire. I'd like to start this discussion and then i can come back in with further info/ more questions

Site response would most be to shut the train off and look to depresurise, however the depressurisation would be a manual process requiring ops guys to go local to where pool would be.

Other points: There is small bunding around the bank. Tube side at 40 bar design press/ shell 20 bar. Currently no pressure relief , only thermal RV on inlet pipework to bank.


So is it possible for a BLEVE like scenario ?


RE: Heat Exchanger Overpressurisation

I suppose it depends on what your liquid is, but whilst a pool fire in a HX might escalate if the fire weakens then ruptures a tube line or set of tubes, I don't believe it will escalate like a classic BLEVE, which also needs a boiling liquid which is, or is worse when it is, flammable - LPG tanks being the most obvious example.

your de pressurisation needs to be safe to operate in the event of fire, ditto your relief valve should be able to handle a fire case if it is a credible scenario.

sounds line you've got a bit of a non complaint site...

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

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

White Paper – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. Download Now
White Paper – The Challenges of PLM Collaboration
There is cross-company collaboration - and then there is cross-company collaboration. Large-scale corporations and joint ventures need different mechanisms to protect intellectual property from those required for communication between different company locations with heterogeneous IT landscapes. 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