Thermodynamics - Refinery Inspection Property Methods
You may use this window to select which refinery inspection properties should be calculated in unit operations which use the current thermodynamic system. Different sets of refinery inspection properties may be defined for each thermodynamic system.
You must select the stream mixing methods to be used in calculating these properties in this window. Refinery inspection properties will not be calculated unless a method is selected here.
Global property data are entered in the Component Data Entry for Refinery Inspection and User-Defined Special Properties Window and/or in the Assay Data Entry for Refinery Inspection and User-Defined Special Properties Window. Data specific to this thermodynamic system are entered here.
Refinery inspection properties may also be printed in the stream property reports.
Usage
From the Thermodynamics - Main Window, select (highlight) the system for which modifications are to be made in the Defined Systems list box.
Push the Modify button to transfer to the Thermodynamic Data - Modification Window and press the Refinery Inspection Properties button to open this window.
You may select a Pre-Defined List of properties. This feature allows you to select the SimSci list, which contains Kinematic Viscosity, Cloud Point, Pour Point, Flash Point, Sulfur Content and Cetane Index. Changing the selection removes all properties from the table.
Select a property from the Property drop down list box. The available options and their default selections are determined by the property selected. Method defines the method used to mix the component property values to produce a value for the stream. See Stream Mixing Methods for further information.
Basis specifies whether the component values will be mixed using their mole, weight or liquid volume fractions.
Fill specifies the action to be taken when component values are missing for petroleum fractions in the stream. The component fill options and the default selection for the property are automatically inserted into the drop down list.
Blending defines the way in which missing data are handled when calculating properties from blended assay streams. The default component blend option for the property is automatically inserted into the drop down list.
The Enter Data button allows data to be entered for this property for this thermodynamic system only. If you wish to enter data for all thermodynamic systems, use the Component Property Selection for Refinery Inspection Properties Window.
Kinematic viscosity data are entered in the Kinematic Viscosity Data Entry Window and other property data are entered in the Refinery Inspection and User-Defined Special Property Data Entry Window. However, if the User-Formula stream method has been selected, the data are entered in the User Formula Data Entry Window.
Thermodynamic Method Selection for User-Defined Special Properties
Thermodynamics - Technical Information