Below is a list of menu commands available (close to 100).
Several of these commands are available by direct mouse operations.
Load from a file either a plant description or a basis component or fluid description.
Reload current plant, discarding changes made since last load or reload.
Load plant examples. These are either templates or demo cases. These plant example can not be overwritten. When modifying such a template plant, it must be saved to another file.
Place one or a number of previously specified plant/s alongside current plant.
Save a plant description to the original file.
Save a plant description to another file. It is possible to save back to the original file, however being warned about this. When saving to another file, all plant change disabling is released.
Print plant layout or diagram/chart currently visible in the plant window. Unless you select the best format (portrait or landscape), you may loose some of the outer details. See also margins adjustment in user preferences.
Open recently loaded plant files of the specific name. See settings in user preferences.
Redo last change.
Modify values of selected element.
Scale the capacity of the selected component, the group of framed components or the entire plant. Note! When selecting a component for capacity scaling, all components of the same basis component type will be scaled. You either set a scaling factor or a desired capacity. The latter option can only be specified after first having selected a plant capacity in and then performed a calculation with a subsequent reload ( ). See also capacity change mechanisms.
Replace the basis component of a plant component with another one of the same model.
Make a copy of the selected element or the group of framed components with related elements. See mouse operations on duplicating boundary conditions, and enthalpy and valve controls.
Make a copy of the current component and connect the copy to the original. This requires that the component is partly or entirely unconnected to other components. Otherwise it will only duplicate in the ordinary sense.
Make a copy of the entire plant placed alongside the original.
Delete the selected element or the group of framed components with related elements.
Delete the entire plant, leaving the basis components and fluids of respective windows available.
Delete all basis components and fluids that are not used in the plant.
Remove fluid from circuit of current connector. Deleting a fluid will discharge all circuits filled with this fluid.
Selection of an item through a dialogue, as an alternative to pointing and clicking in the layout.
Shift selected element to next of same category.
Shift selected element to previous of same category.
Adjust command with a number of submenus:
Display refrigerant connector variables in an enthalpy vs. pressure diagram. If temperature variables are set to be viewed by menu command , isotherms will be plotted.
Display refrigerant connector variables in an entropy vs. temperature diagram. If pressure variables are set be viewed by menu command , isobars will be plotted. (See below)
Display humid air type connector variables in an absolute humidity vs. temperature chart.
Display all symbols representing components and other elements.
Display all selectable colours (for fluids).
Display all specified boundary conditions using a colour and orientation that corresponds to the kind of variable set.
Display all specified controls of the plant. All inactive controls are marked with a cross.
Zoom in twice around current element.
Zoom out twice.
View the entire plant layout or diagram.
Display or hide the windows for basis components and fluids. When hidden the user will have more horizontal space for the plant layout and a more tidy presentation while demonstrating a plant.
Display names of plant components and corresponding basis component names.
Display numbers of connectors and circuits to be able to identify some error information. It will also display boundary numbers, if combined with .
Display component capacities represented by the most relevant component quantity that is scaled through . This selection should be turned off before attempting to calculate newly specified plants, because it may fail if the calculation produces extreme values.
Display of circles around most components to indicate the relative capacity. This facilitates spotting ill-sized components. The circles should normally be of the same magnitude. If a relative capacity of a component is lower than 5 % of the highest capacity component, the circle is replaced by a standard-sized cross. This selection should be turned off before attempting to calculate newly specified plants, because it may fail if the calculation gives extreme values
Display of connectors. Corners belonging to connectors are never displayed. Even if connectors are not displayed, they are still accessible by pointing to their position.
Display the heat transfer boundaries limiting layers participating in a heat conduction calculation.
Select the connector state variables to be displayed. Note that extensive variables are written in white, while intensive ones are in black. The background colour depends on variable type. The current setting will change through other operations, unless marked as persistent. In the latter case there will be no automatic setting of variable display. Note in particular that if you set to View none and Persistent setting , then the variables have to be viewed through accessing components or connectors. A legend showing variable types can be shown or hided. Turn on or off display of the plant heat flow rate balance equation system in the upper left corner, and the mass flow rate balance equation system for each of the plant circuits. In addition the variable numbers corresponding to each connector are displayed. Colours are cyan for temperatures, green for pressures, yellow for enthalpies, red for mass flow rates, light grey for fractions (both absolute humidity of air and vapour fraction of refrigerants), and finally dark grey for powers. Note! This toggle menu disables the display of calculated variables.
Set width of lines between connectors and components.
Create input variables to functions different from the default ones. They are activated in the function dialogue by pressing Modify X or Modify Y buttons and selecting the proper modifier. Modifiers not connected to functions will be lost when reloading or exiting FrigoSim.
Set calculation parameters.
Set user interface language, ref. current languages.
Allows doing most edits after a simulation (default off).
Only menu commands are not enabled. Enter the dialogue for setting user preferences, see more in preferences.
Specify output to the result and report files of derived quantities from the components quantities. These are e.g. total values for several components, extreme values, integrated values, economic quantities etc.
Turn on or off output of one heat conduction result file per component that contains this type of calculation. test purposes and could/should be turned off when doing lengthy simulations.
Specify various calculation elements added to the report file.
Perform a calculation at one time instance, consisting of a number of iterations, and possibly outer control iterations, until convergence has been reached.
Perform a calculation of all time instances specified. There is no way to stop a simulation, other that pressing Ctrl+Alt+Del and specify to end the FrigoSim task. Then the program must be restarted.
Perform a number of simulations in sequence without the need for any user interaction. There is no initial check that the specification is well stated, so these kinds of simulations must be based on specification files that has been previously tested and found in order.
Perform an optimisation at current time based on user selection of a quantity to be maximised or minimised by varying otherwise fixed basis component data between given limits.
If the Perform menu commands are disabled (greyed), the reason is that the plant is not properly specified.
Some of the basis components or plant components may not be fully specified.
The number of equations may be different from the number of variables for the total plant
heat flow balance or for the mass flow balance for each of the plant circuits.
Use the commands
Inspect the report file (with extension rep) issuing a plain text results output. It may also have details on how the calculation has evolved, depending upon the selection in the menu.
Present the number of various plant elements and equations.
Start the web browser (if any) for inspecting the latest information on FrigoSim.
Enter a brief presentation of license information and copyright.
FrigoSim Home Page