×
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

Diesel Fuel Expansion vs Altitude

Diesel Fuel Expansion vs Altitude

Diesel Fuel Expansion vs Altitude

(OP)
How does the volume of diesel fuel change with respect to a change in altutude?

My preliminary thought is that given it is a fluid, it is considered incompressible and therefore any expansion as the altitude rises above sea level to 10,000 ft would be very small if any at all.

Anyone have any thoughts on this?

Thanks!
Bill

RE: Diesel Fuel Expansion vs Altitude

diesel's compressibility is more than water and less than gasoline. 14.65 psi change in pressure is unmeasureable except in a lab.

RE: Diesel Fuel Expansion vs Altitude

Expansion/contraction due to temperature change will be much greater than the pressure effect.

RE: Diesel Fuel Expansion vs Altitude

Some fluids are very compressible, like all gasses.

I think you mean it is not compressible because it is a liquid.

Regards

eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.

RE: Diesel Fuel Expansion vs Altitude

dgallup is correct.  The standard lapse rate is about 1 C for every 1000 ft of altitude change.  A quick search of aviation fuel properties should give you a chart for density vs. temperature.

-Reidh

RE: Diesel Fuel Expansion vs Altitude

If your concern is with the affect on tankage, you need not worry; standard design parameters are full at 90% of physical volume which allows for all manner of things (including thermal expansion due to increased temperature of the return fuel which typically cools the injectors).

Truck

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