Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Pressure drop thru pipes and fittings of compressible fluid

Status
Not open for further replies.

presso

Chemical
Joined
Feb 12, 2004
Messages
25
Location
US
I'm using equations 3.20 in Crane to calculate the pressure drop of a compressible fluid at a give rate through pipes and fittings using values of the net expansion factor given in page A-22. However, most of my calculations involves propylene which has a somewhat lower Cp/Cv (= 1.15 roughly) than the lowest value of page A-22, that is Cp/Cv = 1.3.
Is there a way to obtain similar data for other Cp/Cv values? I've done a small amount of research on this subject and i still didn't find any clue, only data for Cp/Cv = 1.3 or 1.4! Else, do you think the difference of using a value of 1.3 instead of 1.15 or closer could be important?
Thank you!
[noevil]
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top