Correlation 22 (Chebychev)

The following table lists the identification numbers of this correlation with respect to some well-known sources of thermodynamic data.

The equation has the following form:

You must use at least 1 coefficient 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 10 coefficients with this correlation.

You can use any temperature unit of measure (UOM) when you input data for this correlation.

Usage

We recommend that you use this correlation to calculate only the following property:

• Vapor Pressure