×
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

Specific heat ratio in gas compression

Specific heat ratio in gas compression

Specific heat ratio in gas compression

(OP)
In gas compressor; what is the specific heat ration? How could it affect the compressor performance?
in compressor's data sheet; I can see Cp/Cv varying with the temperature. is this the only parameter which could affect it?

thanks

RE: Specific heat ratio in gas compression

quote from K. Ludtke, "Process Centrifugal Compressors".

"Although the pertinent formulae for the compressibility factor, the polytropic volume and temperature exponent were published in the 1940s, the message has, even today, not reached all engineering contractors that different exponents for calculating
head and temperature have to replace the traditional "ratio of specific heats", which is irrelevant for real process gases..."

"...But even today the message has not got around to all engineering companies that different exponents for head and temperature replaced the (perfect gas) values K= cp/cv , which have become irrelevant for process gases."

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


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