Adding OLI calculated viscosity as a property set

The purpose of the document is to show users how to add a property set in Aspen Plus and how to ensure that they get the properties calculated using OLI model. One of the places to check if OLI is the type of method for the property set that you are looking for and the tag name for that property set is at this screen. The encircled properties are the viscosity of liquid mixture and vapor mixture.

Adding a property set

Go to the Aspen Simulation environment and Click on the option below Setup called Property Sets:

Create a new ID:

Find the viscosity physical property in the drop-down:

Properties section of the selected physical property is completed:

Select the Phase for the property. In this case if we suspect liquid and vapor both phases to be present, then the same property needs to be added again as a vapor phase. At this time we will select only liquid phase.