×
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

gas sizing

gas sizing

gas sizing

(OP)
I am working on a oil refinery labratory.  This is the first labratory I have done.  They use a bunch of different process gases in their testing.

helium
hydrogen
nitrogen
argon
oxygen

does anyone have a sizing chart or formula for sizing piping using these gases?  I appreciate any input.  Thanks

Travis

RE: gas sizing

I can not imagine using any or these gases at a rate high enough to size a line.  1/4" or 3/8" tubing should be more than enough.

RE: gas sizing

(OP)
that is what I was thinking.  They use very little of this gas but for my peace of mind and future reference I was just curious if there is any type of sizing chart or formula I can use to size this stuff.

RE: gas sizing

Depends on the pressure of the gas, diameter of the tube and length.  As far as I know Weymouth would not be suitable for tiny diameters or very low pressure lines. "Piping Handbook", Reno C. King tends to confirm this opinion.
[quote] Wemouth Formulas.  In 1912 Thomas R. Weymouth presented in an ASME paper his formulas which are generally considered to be the best suited of the empirical formulas for computing the flow of gas through intermediate and high-pressure transmission lines. [quote]  Verification tests were conducted on 6" to 22 inch lines.

Fritzsche, Harris or Spitzglass Formulas are some alterantives to consider for lower diameters and pressures.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

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