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


Sizing Blowdown & Depressurizing Line

Sizing Blowdown & Depressurizing Line

Sizing Blowdown & Depressurizing Line

For sizing a blowdown & depressurizing line for flowlines and trunklines, what software do we use? The pipeline is for gas service however it contains a condensate and water.
A software other than OLGA?

RE: Sizing Blowdown & Depressurizing Line

I haven't actually used it yet, but I'm familiar with the Aspen program named "Blowdown" which is used for designing high pressure blowdown systems, mainly for hydrocarbon applications. This is a highly regarded software program that Aspen acquired several years back, and incorporated it into their program suite.

RE: Sizing Blowdown & Depressurizing Line

Any 2phase service pipeline to be used for blowdown purposes should be pigged clear of all liquid before use in this new service. This then (a) prevents mechanical damage to the line from high momentum liquid slugs that would surge through the line during blowdown (b) reduces residual backpressure on the blowdown sources a the end of the blowdown. If the line is low point pocketed and has been in blowdown service for some time, it should be pigged clear again after some time when residual backpressure is seen to be high at the end of a blowdown event.

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!


eBook - Mastering Tolerances for Machined Parts
When making CNC machined parts, mastering tolerances can be challenging. Are general tolerances good enough? When does it make sense to call out for tighter tolerances? Do you need a better understanding of fits, datums, or GD&T? Learn about these topics and more in Xometry's new e-book. Download Now
eBook – How to Choose the Correct Corrosion Testing Method
When designing a metal component, engineers have to consider how susceptible certain alloys are to corrosion in the final product’s operating environment. In a recent study by NACE (National Association of Corrosion Engineers), it was estimated that the direct and indirect costs of corrosion in the United States is approximately 6.2% of the GDP. In 2016, that cost exceeded $1 trillion dollars for the first time. 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