Details on Peak Flow Rate
Information on the dialog for Peak flow rate and simultaneity in the calculation dialog for potable water.
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Section part No. x
Shows the selected section part. If you open this dialog for the first time, this will be section part No. 1 at the initial component.
Calculation according to building type
Shows the building type of the selected section part. When opening the dialog for the first time, the building type set in the settings is transferred to all section parts and displayed in Building presetting <building type>. The building type can be changed for each section part.
If you assign a different building type to a section, it will at the same time be assigned to all section parts behind it in flow direction up until the last tapping point. This is also true if following section parts are connected via partial network start and partial network end.
Special building
If you select the building type Special building, the following dialog allows you to enter the simultaneity percentage.
The building type Special building is continued with a simultaneity of 100 % until the network starting point. We recommend to check simultaneities for section parts up to the initial component and to adjust them, if necessary.
Partial volume flow rates of this section part
This table displays the partial volume flow rates of the selected section part. They are displayed sorted by building type and by cold- and hot water.
Sum of flow rates, Continuous flow rate, Fire water flow rate, Peak flow rate
The values of the selected section part are shown. The peak flow rate results from the sum of flow rates and the simultaneity.
Search for section part
After clicking this button select the section part in your model whose properties are to be displayed. You can select the building type for this section part subsequently.
Network starting point
Selects section part No. 1 at the initial component to show its properties.
Show building type
Displays the assigned building type in the model by coloring the section parts.
Show simultaneity
Displays the assigned simultaneities type in the model by coloring the section parts.
Special building Display simultaneity
For section parts that have been assigned the building type Special building, you can use this button to display the assigned simultaneity values colored in the section parts of the model. Simultaneities coming from other building types are not displayed and shown in gray saying not available.
Special building Assign simultaneity
Use this function to freely assign simultaneity values to section parts that carry the building type Special building. Assignment takes place for cold- and hot water separately.
When using this function, the simultaneity is not transferred to subsequent section parts.
Project settings simultaneity
These settings are used if different building types have been assigned within the same pipe network. If you change these settings, the display for Peak flow rate shows the effect of the change for the pipe network.
Per partial volume flow rate: Meaningful setting for starkly differing simultaneities to avoid large nominal diameters.
Apply most unfavorable: Meaningful setting for similar simultaneities to avoid large nominal diameters.
If simultaneities within the building vary greatly, the peak flow rate in the building part with the larger simultaneity may be larger than for the rest of the pipe network. When using the setting Apply most unfavorable, this peak flow rate is applied to all section parts despite possibly having had assigned different simultaneities. In this case, use the setting Per partial volume flow rate first, to ensure that simultaneities are always used as assigned.