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.
- 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.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Air Duct Network Calculations.
    - Details on the Calculation Dialog for Ventilation
      Information about the Duct network calculation dialog.
      - Details on the Flow Paths Table
        Information about the Flow paths table in the calculation dialog for ventilation.
      - About the fluid-mechanical balancing of cross-section splits
        Explains the concept of fluid-mechanical balancing of cross-section splits in the design and calculation of duct networks.
      - Details on the Section Parts Table
        Information on the Section parts table in the calculation dialog for ventilation.
      - Details on the Components Table
        Information on the Components table in the calculation dialog for ventilation.
      - About Visualization
        Explains the concept of visualization of calculation data and properties of pipe and duct networks.
      - 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 Edit Section Part Data
        Explains the concept of editing section parts in Pipe and Air Duct Network Calculations.
      - Details on Define Section Parts
        Information about the Define section parts dialog in the duct network calculation.
      - About Adjusting Nominal Diameters
        Explains the concept of adjusting nominal diameters in Pipe and Air Duct Network Calculations.
  - Settings
    Explains the concept of Settings in the Pipe and Air Duct Network Calculations.
  - Components
    Explains the concept of the Components section in Pipe and Air Duct Network Calculations.
  - About Rooms
    Explains the concept of Rooms in duct network calculation.
  - Curve data
    Explains the concept of curve data for use in calculating pressure losses for air diffusers, silencers, filters, heaters, coolers, and humidifiers/dehumidifiers, among others.
  - Ducts and Pipes
    Explains the concept of Pipe Tables in duct network calculation.
  - About Tables of Insulation
    Explains the concept of Insulation tables in Pipe and Air Duct Network Calculations.
  - Assigning Insulation
    Explains the concept of assigning insulation in the duct network calculation.
  - Medium
    Explains the concept Medium in Pipe and Air Duct Network Calculations for heating, cooling and ventilation.
  - About the Calculation of Air Duct Networks with MEP-Fabrication Parts
    Explains the concept of calculating air duct networks that contain MEP fabrication parts.
- 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 Ventilation

Information about the Duct network calculation dialog.

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

You are here:

Project tab ➤ Discipline Ventilation ➤ Analyse tab ➤ Calculation

Functions for the calculation

The functions in the upper part of the calculation dialog pertain to the entire duct 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. You can use the drop-down list Systems to filter the selection by external or room-side systems.
…	This button will open the dialog for 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. If you have activated the Recalculate after editing checkbox in the Settings dialog, the calculation is automatically performed again after each editing of section parts or components.
Visualization...	This function displays properties and calculation results of the pipe network in color in the model.
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.
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.
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.
Pressure losses, Sound	These radio buttons allow you to switch between results of pressure loss calculation and sound level calculation. The table for flow paths displays pressure losses or the results of sound level calculation, respectively.

Functions of the tables

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


Element	Description
Lock/Unlock section parts	Opens the dialog in which you define or solve the dimensioning of all components of the selected system, the selected flow path or the selected section part. Locked dimensions are shown in bold in columns a, b or d and are not changed during dimensioning. The calculation determines the pressure losses, and the upstream dimensioning determines the dimensions of the duct sections, depending on the set boundary conditions.
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 in the table and click Edit.... The dialog for editing components or section parts is opened.
Configure...	This function is available in section Section parts. Opens the dialog Define section parts. This function allows you to assign certain properties to selected or all section parts simultaneously.
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.

Flow paths, section parts, components

The tables contain all flow paths, section parts and components of the calculated duct network. The Flow Paths table shows all flow paths present in the calculated duct network. The Section parts table shows the section parts of the flow path selected under flow paths. The Components table shows all components contained in the selected section part.

Further information can be found in the linked topics.

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Details on the Calculation Dialog for Ventilation

Functions for the calculation

Functions of the tables

Flow paths, section parts, components