New Features
Learn about new features in LINEAR software.
System Requirements
Learn more about the system requirements for using the LINEAR solutions.
Supported Norms and Standards
Learn which norms and standards support the LINEAR Solutions modules.
LINEAR Installation and Administration
Learn how to install, your LINEAR software, license and keep it up to date.
Getting Started
Get basic information about the structure, function, and interaction of the LINEAR Solutions programs in Revit and LINEAR Building.
Preparing Building
Learn how architects prepare plans and models to create a building model for building analysis.
Pre-Concept Design
Learn how to collaboratively localize and dimension equipment rooms and how to create pipeline corridor concepts.
Analyzing Buildings
Get information about the requirements analysis of a building. The demand analysis includes the calculation of the heat load, the cooling load and the ventilation concept.
Dimensioning Components
Learn how to dimension radiators, convectors, panel heating and concrete core activation systems on the basis of the requirements analysis in LINEAR Building and manufacturer-specific.
Inserting Components
Learn how to insert components from the LINEAR CAD Browser, from the libraries and configurators of the library tab or from LINEAR Building into the model.
Constructing Networks
Learn how to create pipe and duct networks, design slots and openings and manage discipline-related reports and tasks.
Calculating Networks
Learn how to calculate pipe and duct networks.
- Requirements for a Calculable Pipe- and Duct Network
  Explains the requirements for a calculable pipe and duct network.
- About Virtual Components
  Explains the concept of virtual components in pipe and duct network calculations.
- About Pipe Network Calculation Heating and Cooling
  Explains the concept of the pipe network calculation for heating and cooling.
- About Pipe Network Calculation Potable Water
  Explains the concept of pipe network calculation in potable water.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Air Duct Network Calculations.
    - Details on the Calculation Dialog for Potable Water
      Information about the Potable water pipe network dialog.
      - About Results
        Explains the concept of the Results dialog in Pipe and Air Duct Network Calculations.
      - About Reports
        Explains the concept of the reports list in Pipe and Air Duct Network Calculations.
      - About Peak Flow Rate and Simultaneity
        Explains the concept of peak flow rate and simultaneity in the calculation dialog potable water.
      - About Visualization
        Explains the concept of visualization of calculation data and properties of pipe and duct networks.
      - About Ambience
        Explains the concept of the simulation of network temperatures and the assignment of insulation material and ambient temperatures in the calculation dialog Potable water.
      - About the Tapping Process
        Explains the concept of Tapping process in the calculation dialog Potable water.
      - About Ejection Process
        Explains the concept of the Ejection process of hot water consumers in the calulation dialog for Potable water.
      - About Hygiene Status
        Explains the concept of Hygiene status in the calculation dialog Potable water.
      - About Edit Section Part Data
        Explains the concept of editing section parts in Pipe and Air Duct Network Calculations.
      - Details on Define Section Parts
        Information on the Define section parts dialog in potable water pipe network calculation.
      - Details on Lock/Unlock Section Parts
        Information about the dialog Lock/unlock section parts in the pipe network calculation Potable Water.
      - About Adjusting Nominal Diameters
        Explains the concept of adjusting nominal diameters in Pipe and Air Duct Network Calculations.
    - Details on the Calculation Dialog for Circulation Systems
      Information on the Circulation dialog.
  - Settings
    Explains the concept of Settings in the Pipe and Air Duct Network Calculations.
  - Material data
    Explains the concept of the material data in the pipe network calculation for Heating, Cooling and Potable water.
  - Usage Units (Potable Water)
    Explains the concept of Usage units in the pipe network calculation for potable water.
  - Positioning
    Explains the concept of positioning for section parts in the heating and drinking water pipe network calculations.
  - Components
    Explains the concept of the Components section in Pipe and Air Duct Network Calculations.
  - Assigning Type of Installation
    Explains the concept of assigning type of installation for the pipe network calculation for Potable Water.
- About Pipe Network Calculation for Waste Water
  Explains the concept of pipe network calculation in waste water.
- About Pipe Network Calculation for Gas
  Explains the concept of pipe network calculation gas.
- About the Air Duct Network Calculation
  Explains the concept of air duct network calculation.
- About Delete Warnings
  Explains the concept of Deleting warnings in Pipe and Air Duct Network Calculations.
Construction Design
Get information about the workflow Construction design in connection with pipe and duct networks.
Labeling
Learn how to label section parts and components in the model.
Output
Get information about material compilation in LINEAR Building. You will also learn how to print or export calculation results and material lists in your CAD program.
Troubleshooting
Get information about possible sources of errors when working with LINEAR Solutions.

Details on the Calculation Dialog for Potable Water

Information about the Potable water pipe network dialog.

The calculation dialog shows an overview of the detected pipe network and contains all functions necessary for the calculation.

You are here:

Project tab ➤ Discipline potable water ➤ Analyse tab ➤ Calculation

Functions for the calculation

The functions in the upper part of the calculation dialog pertain to the entire pipe network.


Element	Meaning
Calculate	Initiate the calculation of the pipe network after having made changes to see current calculation results.
Result...	Displays additional information regarding the pipe network and an overview of the calculation results, which also are part of the printouts.
Report...	Displays an overview of notes and errors that occurred during calculation. The color of the button helps differentiate between notes and errors: white: No notes or errors. orange: There are notes on the calculation. red: 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.
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 discipline 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.
Peak flow rate...	Opens the dialog Peak flow rate, showing a detailed calculation of the peak flow rate of the selected section part with its discharge valve. You can adjust simultaneities and the building type for individual section parts in this dialog.
Visualization...	This function displays properties and calculation results of the pipe network in color in the model.
Labeling...	Label components and section parts with calculation results.
Refresh <	If components or section parts have already been labeled and calculation results have changed retrospectively, this button will refresh all labels with current data.
Ambience	Opens the dialog Simulation which allows for the simulation of the cooling or heating of potable water in a stagnant network, as well as the assignment of insulation and ambient temperatures.
Tapping process	The simulation of a tapping process within the model runs through after selecting a cold water consumer.
Ejection process	After selecting a warm water consumer, the dialog Temporal temperature profile (hot water) opens to allow for a simulation of the temporal temperature gradient of the consumer during an ejection process.
Hygiene status	Opens the dialog Hygiene status for visualization of rinse velocity, flow type and Reynolds number of special hygienic flushing devices or fitments directly in the model.
Adjust nominal diameters	If calculated nominal diameters deviate from those constructed, calculated nominal diameters can be transferred into the model. You can adjust the nominal diameters for the entire network or for partial networks.

Functions of the tables

In sections Flow paths, Section parts and Components, similar functions are presented.


Element	Description
Maximize list	The tables for flow paths, section parts and components can be maximized to fit the entire calculation dialog. The other tables are hidden.
Minimize list	This function minimizes a maximized table. The other tables are displayed again.
Search <	This function is available in sections Flow paths, Section parts and Components. After clicking Search < select the element in the model. The respective table then highlights the flow path, the section part or the component. If a certain flow path number, a section part 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 section part or the component.
Show	This function is available in sections Flow paths, Section parts and Components. First, select the element from the table and click Show. The flow path, the section part or the component is shown in the model.
Edit...	This function is available in sections Flow paths, Section parts and Components. First, select the element from the table and click Edit.... The dialog for editing components or section parts is opened.
edit in drawing <	This function is available in sections Section parts and Components. Select the element in your model after clicking edit in drawing <. The dialog for editing components or section parts 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 Section parts displays all corresponding section parts. 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.
L*R	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 section parts

This table shows the calculation data for all section parts of the selected flow path. If you select a section part, the table Components displays all corresponding components.

Apply section part data globally

Opens the dialog Define section parts. This function allows you to assign or reset certain properties of selected or all section parts.

Unfix / fix section parts

This function allows you to fix or unfix the dimensions of all section parts. A bold value in column DN indicates that the respective dimension of this section part will not be adjusted during calculation. This is sensible when calculating existing systems. If the dimensions of some section parts have been fixed already, you will be asked whether to fix or unfix all section parts.


Column	Description
No.	Number of the section part.
Type	Pipe type PWC: Potable Water Cold PWH: Potable Water Hot PWH-C: Potable Water Hot Circulation
DN	Nominal diameter of pipes in this section part. 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 section part. The length be changed in the table. The new length will be distributed among all pipes of the section parts proportionately to constructed length. All pipes affected by the change in length will be displayed bold in the tables for section parts and components.
H	Height of section part
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.
v	Medium velocity.
Sum zeta	Sum of zeta values in this section part
Z	Pressure loss due to zeta value
R	R-value of the pipes
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 of this section part
dp(Geo)	Pressure loss due to geodetic height
dp(Stat)	Static pressure difference
dp(Resid.)	Residual pressure at the end of a section part

Table for components

This table shows the calculation data for all Components of the selected section part.


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 section parts containing the respective pipe. All pipes affected by the change in length will be displayed bold in the tables for section parts 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.

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