Details on the Calculation Dialog for Potable Water
Information about the dialog LINEAR Analyse Potable Water.
The calculation dialog shows an overview of the detected pipe network and contains all commands necessary for the calculation.
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Commands for the calculation
The commands in the upper part of the calculation dialog pertain to the entire pipe network.
| Element | Meaning |
|---|---|
| Systems | If the project contains several systems or partial networks you may determine which of the systems or partial network to display in the calculation dialog’s tables. The trade potable water differentiates between the potable water- and the circulating pipe system. |
| … | This button will open the technical data of the initial component. Here, you can change the system name shown in the drop-down list. |
 Calculate | Initiate the calculation of the pipe network after having made changes to see current calculation results. |
 Visualization ... | This command displays properties and calculation results of the pipe network in color in the drawing. |
 Results ... | Displays additional information regarding the pipe network and an overview of the calculation results, which also are part of the printouts. |
 Reports ... | Displays an overview of notes, warnings and errors that occurred during calculation. You can recognize the type of report by the color of the button: green check mark: No current notes, warnings or errors. blue i There are notes on the calculation. yellow warning triangle: There are warnings for the calculation. red cross: There are errors in the calculation. Note: It is recommended to always carefully read the reports to correct errors in the drawing and ensure a proper calculation. |
 Peak flow rate … | Opens the dialog Peak flow rate, showing a detailed calculation of the peak flow rate of the selected pipe section with its discharge valve. You can adjust simultaneities and the building type for individual pipe sections in this dialog. |
 Labeling ... | Label components and duct sections with calculation results. |
 Update < | If components or duct sections have already been labeled and calculation results have changed retrospectively, this button will refresh all labels with current data. |
Commands for the tables
Similar commands are available in the Flow paths, Pipe sections and Componentssections.
| Element | Description |
|---|---|
 Maximize list | The tables for flow paths, pipe sections and components can be maximized to fit the entire calculation dialog. The other tables are hidden. |
 Minimize list | Reduces a maximized table. The other tables are displayed again. |
 Search < | The command is available in the Flow paths, Pipe sections and Components sections. After clicking Search < select the element in the drawing. The respective table then highlights the flow path, the pipe section or the component. If a certain flow path number, a pipe section number or a component number needs to be found, enter the number into the text field and click Search <. The respective table then highlights the flow path, the pipe section or the component. |
 Show | The command is available in the Flow paths, Pipe sections and Components sections. First, select the element from the table and click Show. The flow path, the pipe section or the component is shown in the drawing. |
 Edit... | The command is available in the Flow paths, Pipe sections and Components sections. First, select the element in the table and click Edit.... The dialog for editing components or duct sections is opened. |
 Edit < | The command is available in the Duct section, and Components sections. After clicking edit in drawing <, select the element in the drawing. The dialog for editing components or duct sections is opened. |
Table for flow paths
This table shows the calculation data for all flow paths of the selected system. It provides an overview over all ending components of the network. If you select a flow path, the table Pipe sections displays all corresponding pipe sections. The most unfavorable flow path is highlighted in a different color. You can also select the most unfavorable flow path by pressing U.
| Column | Description |
|---|---|
| No. | Flow path number. |
| Type | Pipe type. PWC: Potable Water Cold PWH: Potable Water Hot PWH-C: Potable Water Hot Circulation |
| Consumer | Name of the consumer. |
| H | Height of the flow path. |
| Consider peak flow rate | Shows, whether the peak flow rate of a consumer is considered or not. The setting for the peak flow rate can be changed in the technical data of the consumer. |
| Q(r) | Calculation flow rate cold water or hot water. |
| p(Min,SP) | Minimum supply pressure at network starting point. |
| p(Min,Fl) | Minimum flow pressure. |
| dp(Geo) | Pressure loss due to geodetic height. |
| Z | Pressure loss due to zeta value. |
| R*L | Pressure loss due to pipe friction. |
| dp(A) | Pressure loss by appliances (e. g. filter, meter) and valves. |
| dp(Pmp) | Pressure recovery due to pumps. |
| Surplus | Amount of minimum flow pressure surplus for discharge valve. |
Table for pipe sections
This table shows the calculation data for all pipe sections of the selected flow path. If you select a duct section, the table Components displays all corresponding components.
Built-in parts or fittings can be classified as section separators
This function allows you to classify fittings or built-in parts in the pipe network as separating elements for pipe sections, e.g. in order to assign different pipe material or to create clear separations for the automatic assignment of material.
Apply pipe section data globally
Opens the dialog Define pipe sections. This command allows you to assign or reset certain properties of selected or all pipe sections at the same time.
Unfix / fix pipe sections
This command allows you to fix or unfix the dimensions of all pipe sections. If values are displayed in bold in the DN column, the dimension of the respective pipe sections will not be adjusted during the calculation. This is sensible when calculating existing systems. If the dimensions of some pipe sections have been fixed already, you will be asked whether to fix or unfix all pipe sections.
| Column | Description |
|---|---|
| No. | Number of the duct section. |
| Type | Pipe type. PWC: Potable Water Cold PWH: Potable Water Hot PWH-C: Potable Water Hot Circulation |
| DN | Nominal diameter of pipes in this pipe section. The nominal diameter can be changed in the table. The value is then fixed and will not be adjusted by the software during calculation. Fixed values are shown in bold. Dimensions listed with an asterisk in the drop-down list have been disabled in the pipe tables. If special dimensions are to be used specifically, the deactivated dimensions are also available for selection here. |
| L | Length of pipe section. The length be changed in the table. The new length will be distributed among all ducts of the duct sections proportionately to constructed length. All pipes affected by the change in length will be displayed bold in the tables for duct sections and components. |
| H | Height of pipe section. |
| U | Number of individuals ( if calculated according to SP 30.13330.2016 and SP 30.13330.2020) |
| N | Number of sanitary ( if calculated according to SP 30.13330.2016 and SP 30.13330.2020) |
| P | Probability of use ( if calculated according to SP 30.13330.2016 and SP 30.13330.2020). |
| NP | Product of the number of sanitary objects and the probability of use ( if calculated according to SP 30.13330.2016 and SP 30.13330.2020). |
| α | Simultaneity factor ( if calculated according to SP 30.13330.2016 and SP 30.13330.2020) |
| Sum Q(r) | Sum of calculation flow rates. |
| Q(s) | Peak flow rate and continuous flow rate. The tooltip show, whether the peak flow rate was determined by usage unit, by curve or after a comparison of curve and usage unit. |
| w | Mean velocity. |
| Sum zeta | Sum of zeta values in this pipe section. |
| Z | Pressure loss due to zeta value. |
| R | R-value in pipes. |
| R*L | Pressure loss due to pipe friction |
| dp(A) | Pressure loss by appliances (e. g. filter, meter) and valves. |
| dp(Tot) | Sum pressure loss of this pipe section. |
| dp(Geo) | Pressure loss due to geodetic height. |
| dp(Stat) | Static pressure difference. |
| dp(Resid.) | Residual pressure at the end of a pipe section. |
Table for components
The table shows the calculation data of all components contained in the selected pipe section.
| Column | Description |
|---|---|
| No. | Component number. |
| Name | Name of the component. |
| DN | Dimension. |
| L | For pipes: Length. The length be changed in the table. The new length will be used in all pipe sections containing the respective pipe. All pipes affected by the change in length will be displayed bold in the tables for duct sections and components. |
| Zeta | Zeta value. |
| Z | Pressure loss due to zeta value. |
| R*L | Pressure loss due to pipe friction. |
| dp(A) | Pressure loss by appliances (e. g. filter, meter) and valves. |
| dp(Tot) | Total pressure loss. |
| dp(Pmp) | Pressure recovery due to pumps. |
Generating 3D pipes
Allows the assignment of pipe materials from the 3D Pipe&Power module, given a successful pipe network calculation and a licensed 3D Design Pipe&Power module. When generating from 2D drawings, insulation material is also taken into account, provided that insulation has previously been assigned to the single-line pipes.