Lee Kesler Spreadsheet
Lee Kesler Spreadsheet
(OP)
I have been trying to create a spreadsheet to come up with residual properties via Lee-Kesler EOS I have however hit a snag. In Lee-Keslers paper he describes a term Vr=Pc*V/Tc*R where V is the volume of a simple fluid. The paper I am refering to is called "A Generalized thermodynamic Correlation Based on Three-Parameter Corresponding States". And I could REALLY use some advice





RE: Lee Kesler Spreadsheet
HAZOP at www.curryhydrocarbons.ca
RE: Lee Kesler Spreadsheet
For another reference, see Chapter 7 of the API Technical Data Book, Hydrocarbons. This covers thermal properties, and the LK procedure for dH and dS is described well in there.
RE: Lee Kesler Spreadsheet
RE: Lee Kesler Spreadsheet
First, determine the ideal reduced volume of the Lee-Kesler "simple fluid" (w = 0) using the Tr and Pr of the fluid of interest. Calculate the simple fluid compressibility (Zsf = PrVr/Tr).
Second, determine the ideal reduced volume of the Lee-Kesler "reference fluid" (n-octane, whose w = 0.3978) using the same Tr and Pr of the fluid of interest. Calculate the reference fluid compressibility (Zrf = PrVr/Tr).
Lastly, find the compressibility of the fluid of interest by interpolation/extrapolation based on the acentric factor of the fluid of interest. [Z = Zsf + (w/0.3978) x (Zrf - Zsf)]
The 3rd Ed. of Sherwood, Reid, and Prausnitz has all the equations and tables you need.
Good luck,
Latexman
RE: Lee Kesler Spreadsheet
Good luck,
Latexman