COCO - CAPE-OPEN to CAPE-OPEN simulation environment

Heat of vaporization

The heat of vaporization routines are specified per compound in the compounds tab, if the heat of vaporization calculations are enabled.

When the EOS method is selected for liquid enthalpy, heat of vaporization is not required for calculating liquid enthalpy.

For any other internal enthalpy liquid method, heat of vaporization is required. Three models are available:

Temperature Correlation

The parameters for the temperature correlation for heat of vaporization are available through TEA's PCD data files.


The Pitzer correlation for heat of vaporization:

Clausius Clapeyron

The relation between vapor pressure and heat of vaporization is given by

The approximation Δz = 1 is made, and a valid routine for vapor pressure must be selected.