Transfer Calculations

Use the Transfer Calculations to determine the amount of mass or volume transferred to (or from) an inventory element. This method requires that the inventory Attributes that you are going to reference must be configured to a time-sensitive data reference (PI Point DR). To calculate the amount of material, use the start time and end time of the transfer and the source or destination inventory element. It is also possible to calculate the density of the transfer if both the delta volume and delta mass inventories are known.

The following equations are used to calculate mass, volume, and density of a transfer, respectively.

Transfer Calculation Equations

Mass - Using the Source Inventory	Mass - Using the Destination Inventory
Volume - Using the Source Inventory	Volume - Using the Destination Inventory
Density - Using the Source Inventory	Density - Using the Destination Inventory

Where:

mt = the calculated mass of the transfer

ms = the mass inventory of the source

mD = the mass inventory of the destination

vt = the calculated volume of the transfer

vS = the volume inventory of the source

vD = the volume inventory of the destination

ρt = the density inventory of the transfer

The symbols | t=t1 and | t=t2 mean that the variable is evaluated at the time equal to the start time or the end time of the transfer, respectively.

See Configuring - Transfer Calculations for details on how to configure this calculation.