Correlation 21
- Last UpdatedMar 07, 2023
- 2 minute read
The following table lists the identification numbers of this correlation with respect to some well-known sources of thermodynamic data.
|
Source |
Correlation Number |
|---|---|
|
SimSci |
21 |
|
PPDS |
- |
|
DIPPR 801 |
- |
|
NIST TDE |
6 |
|
DECHEMA IK-CAPE PPDX |
ANTO: Antoine equation |
The equation has the following form:
You must use at least 3 coefficients with this correlation.
While this correlation shows the calculation for the natural logarithm (ln) of the temperature-dependent property, the software calculates either the natural logarithm or the logarithm base 10 (log) of the temperature-dependent property based on your Log Basis selection in AVEVA Thermodynamic Data Manager (TDM). The default logarithm basis is the natural logarithm.
You can use up to 7 coefficients with this correlation.
The input temperature must be in absolute units (K or R).
If you want to use the IK-CAPE ANTO equation, set the C2 coefficient to the -a1 coefficient in the ANTO equation and the C4, C5, C6, and C7 coefficients to zero.
Usage
We recommend that you use this correlation to calculate only the following properties:
-
Liquid Viscosity
-
Vapor Pressure
References
-
Yaws, C.L., J.W. Miller, P.N. Shah, G.R. Schorr and P.M. Patel. Correlation Constants for Chemical Compounds, Chem. Eng. Sci., Vol. 83, No. 24, pp. 153 - 162, 1976.
-
Thermodynamics-Package for CAPE-Applications. DECHEMA e.V. [Online] March 28, 2002, pp 7-10. http://dechema.de/dechema_media/IK_CAPE_Equations-p-888.pdf (accessed May 1, 2018).