Details on the Calculation Dialog for Gravity Drainage (Wastewater)
Information about the dialog LINEAR Analyse Potable Water - Gravity Drainage.
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. |
| ... | 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. |
 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 to the Tables
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Objects are displayed when selected from the lists in the project/model
Activated : The drawing highlights the objects that belong to the currently selected row in the table of Flow Paths, Pipe Sections, or Ventilated through Pipe Sections. If necessary, the image will be zoomed in to ensure that the objects are visible.
Deactivated : No objects in the drawing that belong to the currently selected row in the table for Flow Paths, Pipe Sections, or Components are highlighted.
For the areas Flow Paths, Pipe/Duct Sections, and Ventilated through Pipe Section(s), similar commands are available.
| Element | Description |
|---|---|
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Flow Path List/Pipe Section List/Maximize or Minimize Pipe Sections for Ventilation |
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 Search < | The command is available in the areas Flow Paths, Pipe Sections and Ventilated through. After clicking Search < select the element in the drawing. The respective table then shows the flow path, the pipe section or the ventilation duct section. If a certain flow path number, a pipe section number or a ventilation duct section number needs to be found, enter the number into the text field and click Search <. The respective table then shows the flow path, the pipe section or the ventilation duct section. |
 Show | The command is available in sections Flow Paths, Pipe Sections and Ventilated through. First, select the element from the table and click Show. The flow path, the pipe section or the ventilation pipe section is shown in the drawing. |
 Edit … | The command is available in sections Flow Paths, Pipe Sections and Ventilated through. First, select the item in the table and click on Edit …. The dialog for editing drainage element, pipe section or ventilation duct section is opened. |
 Edit < | The command is available in sections Pipe Section, and Ventilated by. After clicking Edit <, select the item in the drawing. The dialog for editing pipe sections is opened. |
Comp. Edit < | The command is available in section Ventilated by. After clicking on Comp.-Edit <, select the component in the drawing. The dialog for editing the component is opened. |
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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 |
|---|---|
| (without title) | Pipe Type: S: Sewage Water R: Rain Water |
| No. | Flow Path Number |
| Name | Name of the Drainage Object |
| DU | Connection Value |
| Qc | Water Inflow |
| A | Connected Roof Area |
| Qr | Rainwater Discharge Rate |
| C | Discharge Coefficient |
| DN | Dimensioning target. |
Table for Pipe Sections
The table by default shows the calculation data of all pipe sections included in the selected flow path. In the enlarged state, all pipe sections of the entire system are displayed. If you select a pipe section, the table Ventilated through Pipe Section(s) displays all corresponding ventilation pipe sections.
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.
Unlock / Lock Pipe Sections
This command allows you to fix or unfix the dimensions of all pipe sections. If values are displayed in bold in theDN 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 |
|---|---|
| (without title) | Pipe Type: S: Sewage Water R: Rain Water M: Mixed Water |
| No. | Number of the duct section. |
| Type | DP: Down Pipe G: Ground Drainage Pipe ColP: Collector Pipe S: Collecting Pipe SCP: Single Connector pipe (i): inside the building (o): outside the building Pipe type can be changed in the table. |
| L | The length of the section part determined in accordance with the norm, taking into account all relevant fittings. 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. |
| I | Number of individuals (if calculated according to SP 30.13330.2016 and SP 30.13330.2020) |
| S | 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) |
| 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. |
| DU | Connection value. |
| Qww | Waste water discharge. |
| Qp | Pump flow rate, if a pump exists. |
| Qc | Continuous flow rate. |
| Qtot | Total waste water discharge. |
| A | Connected Roof Area |
| Qr | Rainwater Discharge Rate |
| Qm | Mixed water outflow. |
| J | Slope. The slope can be changed in the table. |
| h/d | Filling degree. The tooltip in this field shows the actual- and max-condition of the current loads. |
| w | Flow velocity in collecting- and ground pipes. |
Table Ventilated through Pipe Section(s)
The table by default shows the calculation data of all ventilation pipe sections that belong to the selected pipe section. In the enlarged state, all ventilation sections of the entire system are displayed.
Unlock / Lock Pipe Sections
This command allows you to fix the dimensions of all pipe sections. In the DN column, all values are displayed in bold and the section dimensions are no longer adjusted during the calculation. This is sensible when calculating existing systems. A repeated click on this button unfixes all dimensions. 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 |
|---|---|
| (without title) | Pipe Type: L: Ventilating pipe |
| No. | Number of the ventilating pipe. |
| Type | Type of ventilation pipe. The ventilation pipe can be changed in the table. |
| L | The length of the section part determined in accordance with the norm, taking into account all relevant fittings. 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. |
| 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. |
Generate 3D Pipes
Allows the assignment of pipe materials from the 3D Piping module after the calculation of a single-line pipe - network. After successful assignment, a three-dimensional pipe network is generated. Pre-assigned insulation material is considered. This process requires a license for the LINEAR 3D Design Pipe&Power module.
Make a backup copy of your drawing before having the 1-line pipe network converted to 3D.
The result of 3D generation may vary depending on which pipe material was chosen. It may occur that calculated nominal pipe sizes are not available for the selected 3D pipe material. This can lead to deviating results or open ends when calculating the 3D pipe network.