Knowledge Base Revit
Calculating Networks
Learn how to calculate pipe and duct networks.
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 on the dialog LINEAR Analyse Ventilation Revit.
Details on the Flow Paths Table
Information about the Flow paths table in the calculation dialog for ventilation.

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-conception design
Learn how to plan the positionining and dimensioning of technical control centers and create the route concept in collaboration with all parties involved in the planning.
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 radiators, convectors, panel heating/cooling systems and concrete core activation systems and components of ventilation systems are designed based on the requirement analysis in LINEAR Building.
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 a 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.
  - Settings
    Explains the concept of Settings in the Pipe and Air Duct Network Calculations.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Air Duct Network Calculations.
    - Details on the Calculation Dialog for Ventilation
      Information on the dialog LINEAR Analyse Ventilation Revit.
      - About Issues
        Explains the concept of the reports list in Pipe and Air Duct Network Calculations.
      - About Results
        Explains the concept of the Results dialog in Pipe and Air Duct Network Calculations.
      - About Visualization
        Explains the concept of visualization of calculation data and properties of pipe and duct networks.
      - Details on the Flow Paths Table
        Information about the Flow paths table in the calculation dialog for ventilation.
      - Details on the Section Parts Table
        Information about the Section parts table in the calculation dialog for ventilation.
      - About Edit Section Part Data
        Explains the concept of editing section parts in Pipe and Air Duct Network Calculations.
      - Adjusting a Duct Geometry
        Shows step-by-step how to adjust or restrict the geometry for selected parts of the duct network.
      - Details on Define Section Part Data
        Information about the Define section parts dialog in the duct network calculation.
      - Details on the Components Table
        Information about the Components 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.
      - About Adjusting Nominal Diameters
        Explains the concept of adjusting nominal diameters in Pipe and Air Duct Network Calculations.
  - 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.
Creating a Scheme
Get information on the workflow Scheme for the discipline Potable Water in Revit.
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
Obtain information on the output of calculation results and material extracts in your CAD program in LINEAR Building. In addition, find out how you can customize the layout of the output documents using the print mask editor.
Troubleshooting
Get information about possible sources of errors when working with LINEAR Solutions.

Details on the Flow Paths Table

Information about the Flow paths table in the calculation dialog for ventilation.

You are here:

Project tab ➤ Discipline Ventilation ➤ Analyse tab ➤ Calculation

Table for pressure loss calculation

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.	Number of the flow path.
Type	SU: Supply air EX: Extract air OA: Outdoor air EXH: Exhaust air
Outlet	Name of the outlet or partial network end.
Volume flow rate	Volume flow rate in this particular flow path. The volume flow rate of this flow path can be entered in this table. To avoid recalculating the network every time a change is made, deactivate the Recalculate after editing of section parts or components option in the Settings.
dp-pipes	Pressure loss of the straight air ducts.
dp-single resistance	Pressure loss of the single resistances.
dp-balancing	Sum of the balancing pressure losses of the flow path.
dp Total	Total pressure loss of a flow path.

Table for sound level calculation


Column	Description
No.	Number of the flow path.
Type	SU: Supply air EX: Extract air OA: Outdoor air EXH: Exhaust air
Outlet	Name of the outlet or partial network end.
Volume flow rate	Volume flow rate in this particular flow path. The volume flow rate of this flow path can be entered in this table. To avoid recalculating the network every time a change is made, deactivate the Recalculate after editing of section parts or components option in the Settings. In the Calculation presettings of the Settings, you can define the unit used for the volume flow.
Lw outlet	Unweighted sound power level at the outlet of the diffuser.
-dLp Room/Ambience	Sum level of room/ambient attenuation for this outlet.
Result	Unevaluated sound pressure level at the measuring point (ear).
Lp Measuring point	The A-evaluated sound pressure level at reading point.
Lp Room/Ambience target	Required A-weighted sound pressure level in the room or in the environment.
Lp Room/Ambience actual	Resulting A-weighted total sound pressure level of all outlets in the room or in the environment.

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Details on the Flow Paths Table

Table for pressure loss calculation

Table for sound level calculation