Knowledge Base AutoCAD
Calculating Networks
Learn how to calculate pipe and duct networks.
About the Air Duct Network Calculation
Explains the concept of the Duct Network Calculation.
Settings
Explains the concept of the Settings in the Pipe and Duct Network Calculations.
Details on Settings Ventilation
Information about the Settings dialog in the Duct Network Calculation.
Details on Calculation Presettings in the Settings Ventilation
Information about the Calculation presettings section of the Settings dialog in the Duct Network Calculation.
Details on Default Zeta Values by Component Type
Information about the Default zeta values by component type dialog in the Zeta values section of the Settings for the Duct Network Calculation.

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 LINEAR Solutions-programs in AutoCAD and LINEAR Building.
Preparing Building
Learn how drawings are prepared by architects to create architecture for building analysis.
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 into the drawing.
Drawing Networks
Learn how to draw pipe and duct networks, generate schematics, and create slots and openings.
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 pipe network calculation for heating and cooling.
- About Pipe Network Calculation Potable Water
  Explains the concept of the Potable Water Pipe Network Calculation.
- About Pipe Network Calculation for Waste Water
  Explains the concept of the Waste Water Pipe Network Calculation.
- About Pipe Network Calculation for Gas
  Explains the concept of the Gas Pipe Network Calculation.
- About the Air Duct Network Calculation
  Explains the concept of the Duct Network Calculation.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Duct Network Calculations.
  - Settings
    Explains the concept of the Settings in the Pipe and Duct Network Calculations.
    - Details on Settings Ventilation
      Information about the Settings dialog in the Duct Network Calculation.
      - Details on Component Detection in the Settings Ventilation
        Information about the Component detection section of the Settings dialog in the Duct Network Calculation.
      - Details on Calculation Presettings in the Settings Ventilation
        Information about the Calculation presettings section of the Settings dialog in the Duct Network Calculation.
        Details on Default Zeta Values by Component Type
        Information about the Default zeta values by component type dialog in the Zeta values section of the Settings for the Duct Network Calculation.
      - Details on Duct Dimensions in the Settings Ventilation
        Information about the Duct dimensions section in the dialog Settings in the Duct Network Calculation.
  - Components
    Explains the concept of the Components section in Pipe and Duct Network Calculations.
  - About Rooms
    Explains the concept of room in the 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.
  - Details on Tables of Insulation
    Information about the Tables of insulation dialog in the Pipe and Duct Network Calculations or on the General tab.
  - Medium
    Explains the concept Medium in Pipe and Duct Network Calculations for heating, cooling and ventilation.
Dimensioning/Label
Learn how to label section parts and components in your drawing.
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.

Details on Default Zeta Values by Component Type

Information about the Default zeta values by component type dialog in the Zeta values section of the Settings for the Duct Network Calculation.

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Assistants ➤ Ventilation / Drawing type ➤ Calculation ➤ Settings ➤ Calculation presettings ➤ by component types...

Component type / Zeta value

In this table, you assign an individual zeta value to the respective air flow situation or component type.

Load / Save zeta values

The Buttons Load Zeta Values and Save Zeta Values allow you to load or save predefined tables with the *.tab file extension.

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Details on Default Zeta Values by Component Type