|Excel Unit Operation|
|Matlab Unit Operation|
|Matlab Thermo Import|
|OO Calc Thermo Import|
|SciLab Unit Operation|
|SciLab Thermo Import|
The control sheet performs several functions.
To see which properties of a certain type are available, or which phases are defined, click the appropriate button on the control sheet. A dialog will pop up that lists the items in the selected category (only available if at least one port is connected). To use an identifier in a function, select it and use the Copy button to copy it to the clipboard.
The control sheet provides a quick reference of all available functions. The number of rows and columns for the outputs of the capeFlash and capeFlashedFeed functions is also listed (if at least one port is connected).
Click the Help button in the control sheet to access the on-line help.
Simulation environments will validate the unit operation when something has changed.
You can specify a validation error in the control sheet; if this error is
a non-empty string value other than "OK", the unit will be considered invalid by the
simulation environment, and the user will be presented with the message. Example:
=if('input parameters'!B2<'input parameters'!B3,"pressure drop must be smaller than vessel pressure","OK")
After the Excel unit is done calculating, it will check for a run-time error on the control sheet. If set to a non-empty
string other than "OK", the run results are considered invalid, and the error string is passed to the simulation environment. Example:
=if('calculation'!A30<=0,"run resulted negative or zero yield","OK")
Textual reports of the unit operation can be made available to the simulation environment. To define a textual report:
As reports depend on the calculated values, the reports are only available after a succesful run of the unit operation.
Note: the default control sheet constains space for up to 10 reports. If you need more reports, redefine the named range "ReportNames".
Here you can identify models that need to be solved using the Excel solver. The models should be listed in the order in which they are to be solved during the unit operation's calculation.
Fore more information, see Using the Excel solver.
Note: the default control sheet constains space for up to 20 solver models. If you need more solver models, redefine the named range "SolverModels".
To store the complete Excel model (including ports, parameters, options and calculations), click the Export model button. To reload the model in a different or the same unit operation, click the Import model button. Note that importing the model will discard all the information that is currently in the model. See Loading and storing models for more information.