Designing and optimizing HVAC systems requires the ability 'to play' with the design parameters. The Hysopt software includes powerful tools to access and change the systems' design parameters in a fast and synoptic way.
Parameter box
When left clicking on a basic circuit a parameter box appears on the left side of the canvas in which the parameters of the respective basic circuit can be modified. For basic circuits containing multiple hydraulic components, the parameters are arranged according to the respective components. If not all parameters are shown (in case of a large number of parameters) you can scroll down in the parameter box using the mouse wheel.
- Parameter box of the selected basic circuit
- Different component within the basic circuit
Locking parameters
The Hysopt software calculates the optimal system parameters. However, as a designer you are always able to change parameters as you like. By clicking on the lock icon a parameter can be forced to a user defined value (the lock icon is marked in red). This way the software sees this parameter as a hard input value instead of an (optimized) calculation result. This feature is particularly useful in renovation projects where the existing parts of the system must be modeled 'as is' by locking the parameter values.
Note that parameters without lock icon are always input parameters specified by the designer, if not the presented default values are used . E.g. the minimal valve authority is not a calculation output but a user defined requirement.
Changing parameters for multiple basic circuits
In order to easily modify system parameters in large systems (e.g. for sensitivity analysis), parameter values can be changed for multiple components at once:
- using 'Alt+Cick' within one canvas
- using 'Shift+Alt+Click' to span multiple canvasses
Using 'Alt+Click' within one canvas
When pressing the 'Alt' button while clicking on a basic circuit (or pipe), all basic ciricuits of the same type will be selected at once. The number of selected basic ciruits is shown at the top of the parameter box. Uniform parameters (parameter values are the same for all basic circuits in the selection) are marked in black whereas a red marked parameter value indicates that different parameter values are applied within the selection. When overwriting a red parameter value, the new parameter value will be marked in black which means that it is a now a uniform parameter value.
Making a partial selection
Working with tags