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


Raw video / animation of centrifugal compressor in surge condition.

Raw video / animation of centrifugal compressor in surge condition.

Raw video / animation of centrifugal compressor in surge condition.

I am looking for actual video / raw video of surge on a centrifugal compressor.

Hearsay the whole structure shakes and all the pipes fall / dislocated , but none had live experience though.

Surge tuning experts may have the experience.

RE: Raw video / animation of centrifugal compressor in surge condition.

I have been next to a 12000hp centrifugal when it has surged at 300psig discharge pressure. Pipes do not fall, nor does anything go flying, unless both were on the ragged edge of failure anyway. What I heard was a high pitched squeal, a loud thump from the inlet filters and the roar of air being vented from the surge control dump valve. The compressor plant also shook, which is attention grabbing for sure. This was on a late 1950s era GEC 10 stage centrifugal with air/oil jetpipe relay control system built by Reavell Askania. A current microprocessor controlled surge protection system may well have avoided the surge condition, but in the 1950s there were no such things, so control was carried out by Dall tubes in the inlet pipe, and sampling fans creating pressure differentials across orifice plates. These signals were sent to the air/hydraulic controls via air pipes, so the system was probably not the last word in instantaneous control. It did work very well for what it was, and could be tuned very precisely if you knew how to set regulators. Proper settings were highly dependent on temperature and the associated air density. It took me awhile to get my head around how it worked, but when I understood it I gained even more respect for the millions of brilliant people who have come before us.

I replaced two planetary gear sets in that compressor. I think the surging over the decades had done them in.

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


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

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