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

vapor venting from above ground HC storage tanks

vapor venting from above ground HC storage tanks

vapor venting from above ground HC storage tanks

Does anyone have a spreadsheet program to make a reasonable estimate of tank venting losses resulting from solar heating?

RE: vapor venting from above ground HC storage tanks


If you are in the United States, have you had a look at the Section 4.3 of the U.S. EPA's publication AP-42? It deals with vapor losses from tankage.

Are you asking about fixed-roof storage tanks?  If you are, AP-42 addresses both breathing losses (i.e., losses due to temperature changes) and working losses (i.e. losses from loading into the tank or loading out from the tank).

Or are you asking about floating roof tanks, or variable vapor space tanks, or tanks with
vapor recovery systems?  AP-42 also addresses many of these tank types.

Milton Beychok
Air Pollution Dispersion Modeling
Visit my website to learn about "Fundamentals of Stack Gas Dispersion", a most comprehensive book on dispersion modeling of continuous, buoyant air pollution plumes. The site has published peer reviews and the complete Table of Contents.

RE: vapor venting from above ground HC storage tanks

The EPA also provide a TANKS program that calculates emmissions from tanks.

The program is free and available at


It's not a spread sheet but does come with complete documentation.

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


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