© 2021 Jasper van Baten, AmsterCHEM

Persistence in AspenPlus

All versions of AspenPlus prior to V9 will persist a single CAPE-OPEN unit operation properly, but will not properly persist any CAPE-OPEN unit operation if more than one CAPE-OPEN unit operation is present in the flowsheet. To work around this, when running in AspenPlus, the CAPE-OPEN unit operation will save a copy of its spread sheet in the current folder, which is assumed to be the folder containing the simulation, under the same name as the unit operation, with the file extension .xlsx.

Upon reloading an AspenPlus file, if the unit operation is not properly restored via CAPE-OPEN persistence, an xlsx file with the name of the unit is used to restore the unit, if it exists in the current folder.

This work-around has the following caveats:

INDEX
add-In
aggregation state
available properties
capeCompoundConstant
capePropertyUnit
capeFlash
capeFlashedFeed
capeOverallFeedProperty
capeOverallProperty
capePDependentProperty
capeSinglePhaseProperty
capeCompoundNames
compound names
unit of measure
capeStateOfAggregation
capeTDependentProperty
capeTwoPhaseProperty
capeUnitOperationName
compound constants
control sheet
defined phases
Disclaimer
equilibrium calculations
examples
Excel solver
Export Model
feeds
flash calculations
getting started
Import Model
input parameters
Loading and storing models
macros
output parameters
overall properties
parameters
ports
pressure dependent properties
products
property calculations
quick reference
reports
requirements
run-time error
security
single phase properties
solver
state of aggregation
streams
temperature dependent properties
thermodynamic equilibrium calculations
thermodynamic property calculations
two-phase properties
unit operation name
Update links
validation
VBA
welcome
CONTENT
 Introduction
 Ports and streams
 Parameters
 Function reference
 The control sheet
 Using the Excel solver
 Using Macros
 Loading and storing models
 Persistence in AspenPlus
 Examples
 Disclaimer