Example of coefficient mapping between AVEVA Thermodynamic Data Manager and AVEVA Process Simulation

For this example, we use the HNO3_eNRTL fluid from the Fluids Library. This Fluid Type has the following non-zero data:

For the HNO3 component, we use correlation 1. The coefficient mapping for correlation 1 is:

Because the HNO3 correlation includes only three coefficients, we can expand the coefficient mapping as follows:

The correlation coefficients that we see in the Fluid Editor () in AVEVA Process Simulation should follow this mapping when we compare the values to the correlation coefficients for enthalpy () in AVEVA Thermodynamic Data Manager (TDM).

In TDM, we see the following data:

The following table shows the coefficient values that we see in TDM, the hand-calculated results for the specific heat coefficients based on the coefficient mapping, and the coefficient values that we see in the Fluid Editor in AVEVA Process Simulation. The hand-calculated results should match the coefficient values in the Fluid Editor.