Details on Settings Heat Interface Unit
Information on the dialog for Configurations Heat Interface Unit in the pipe network calculation for heating.
Specify global settings for all Heat Interface Units in your project.
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Simultaneities that you assigned to individual pipe sections using the function Edit pipe section in the calculation dialog, always rank higher in priority.
Approach of Simultaneity
All simultaneity approaches refer to apartment construction. The selected simultaneity approach is applied to the heating flow rates for potable water heating. Simultaneity of heating flow rates is not affected by this and initially is 100 %. Simultaneity decreases with increasing number of apartments.
Select Simultaneity 100% to set the simultaneity to 100 %.
Select User-defined to create a user-defined curve in the section User-defined.
Approach of simultaneity
Displays the formula used for the selected approach of simultaneity.
Simultaneity curve
The curve for the selected approach of simultaneity is shown in red. For comparison purposes, the curves of the other approaches are also shown.
Diagram: N
The number of apartments in the diagram regulate the display of the simultaneity curve.
Simultaneity
| Element | Description |
|---|---|
| Round to next higher number of devices | Enabled: In calculation, the number of heat interface units is rounded to whole numbers. Disabled: The number of devices is not rounded during calculation. This makes for smaller pipe dimensions. |
| PW simultaneity Generator – buffer storage | This value describes the relation between discharge- and charge time of the buffer storage. It impacts pipe dimensions between generator and buffer storage, as well as the recharge time o the buffer storage. Please watch the notes in the report after calculation. The preset value of 16.7 % has possibly to be corrected upwards to ensure that the buffer storage is charged for cases of hot water discharge as well. |
| User-defined simultaneity: | If you selected User-defined for the simultaneity approach, enter the name of the method here. This field is deactivated for other simultaneity approaches. |
| a, b, c | If you selected User-defined as your simultaneity approach, you may enter the factors a, b, and c to be used for the simultaneity approach formula. The user-defined curve for the simultaneity approach in the diagram is shown in red. This fields are deactivated for other simultaneity approaches. |
Potable water heating
With Priority operation, heating of potable water takes precedence. As soon as hot water is discharged, the heat exchanger from the supply water is flooded to heat potable water. The heating circuit is turned off during potable water heating.
During Parallel operation potable water heating and heating can be used at the same time. This leads to larger flow rates in the primary network (feed pipes leading to heat interface units).
Multisupplier dimensioning
Settings made via Global Settings are only effective for manufacturer neutral heat interface units from the library. When using a heat interface unit form a certain manufacturer or from the Configurator, these settings do not apply.
Buffer storage dimensioning
Via Global presettings the dialog Global presettings for buffer storage dimensioning is opened.