Contact US

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.

Students Click Here

N2 Purging of Oil tank

N2 Purging of Oil tank

N2 Purging of Oil tank

Does any one knows how much purging time is used for purging the oil tanks? for API 614 Lube oil system.

RE: N2 Purging of Oil tank

Depends on volumes, flows, and configuration. There are ways to model this.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: N2 Purging of Oil tank

Thank you for the reply Edstainless.
Purge volume is 4nm3 and the nitrogen is coming in tank with 3mbarg pressure. what should be the purging time for this? i am considering 15 mins purging time.
that means flow of nitrogen 16 nm3/hr.

RE: N2 Purging of Oil tank

How low do you want the residuals? Typically purging with 7 volumes will get you good results.
The inlet pressure doesn't really matter, just flow in standard terms.
Pressure can matter if it is too high, you can have too much turbulence and get more mixing and less purging.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: N2 Purging of Oil tank

residuals should be low as much as possible. purging with 7volumes means? 7 times of the volume in which gases can be trapped?
tank is atmospheric and we have a demister(on vent line) also on the tank so the pressure will not be high.
is there any standard time for purging of tanks in oil and gas industry?

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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