Knowledge Base AutoCAD
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.
Heat Load

Select a calculation basis for the calculation of the heat load according to the location and requirements of your project.
Heat Load Calculation acc. To DS 418 (2020)

Explains the concept of heat load calculation according to the danish standard DS 418.
About General Heat Load Data

Explains the concept of general heat load data in the context of heat load calculations.
Details on Specific Air Permeability (50 Pa)

Information on the Specific air permeability (50 Pa) section of the general heat load data.

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.
- Heat Load
  
  Select a calculation basis for the calculation of the heat load according to the location and requirements of your project.
  - Heat Load Calculation Based on EN 12831-1 (2017)
    
    Explains the concept of heat load calculation based on EN 12831-1 (2017).
  - Heat Load Calculation Based on EN 12831 (2003)
    
    Explains the concept of heat load calculation based on EN 12831 (2003).
  - Heat load Calculation According to ISSO 51 and 53(2018)
    
    Explains the concept of heat load calculation according to the Dutch standards ISSO 51 and ISSO 53 (2018).
  - Heat Load Calculation According to SN SIA 384/2 (2020)
    
    Explains the concept of heat load calculation based on SN SIA 384/2 (2020).
  - Heat Load Calculation acc. To DS 418 (2020)
    
    Explains the concept of heat load calculation according to the danish standard DS 418.
    - About Building Detection
      
      Explains the building detection concept in relation to the heat load calculation.
    - About General Heat Load Data
      
      Explains the concept of general heat load data in the context of heat load calculations.
      - Select Calculation Base
        
        Shows step-by-step how to select a calculation base for your heat load.
      - Details on Climate Data for Denmark
        
        Information about the Location and climate data section of the general heat load data.
      - Editing the Table for Thermal Bridge Supplements
        
        Shows step-by-step how to edit the thermal bridge supplements table.
      - Set Ventilation System Globally
        
        Shows step-by-step how to set up a ventilation system for your entire project.
      - Set Ventilation System in Ventilation Zone
        
        Shows step-by-step how to define the ventilation system at the ventilation zone level.
      - Details on Ventilation
        
        Information about the Ventilation section in the general heat load data.
      - Details on Temperatures to Unheated Rooms
        
        Information on the Temperatures to unheated rooms section in the general heat load data.
      - Details on Shielding Class
        
        Information about the Shielding class section in the general heat load data.
      - Details on Specific Air Permeability (50 Pa)
        
        Information on the Specific air permeability (50 Pa) section of the general heat load data.
    - About Component Values
      
      Explains the concept of component values.
    - About the Transmission
      
      Explains the concept of transmission at room level, in relation to the heat load calculation.
    - About Ventilation Data
      
      Explains the concept Ventilation data in relation to the heat load calculation.
  - Heat Load Calculation according to SP 60.13330.2016
    
    Explains the concept of heat load calculation based on SP 60.13330.2016.
  - Approximate Heat Load
    
    Explains the concept of approximate heat load calculation by means of quick entry.
- Cooling Load Short Procedure
  
  Learn how to calculate a cooling load for your building based on the short procedure of VDI 2078 (1996), section 6.
- Cooling Load Dynamic
  
  Select a method for determining the cooling load to suit the location and requirements of your project.
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.
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 Specific Air Permeability (50 Pa)

Information on the Specific air permeability (50 Pa) section of the general heat load data.

You are here:

Module overview ➤ Heat load ➤ Project level ➤ General heat load data ➤ Specific air permeability (50 Pa)

Specific air permeability (50 Pa)

Click to select a category from the standard or enter a free value. This input field is deactivated as soon as the checkbox Air change n(50) measured is activated.

Air change n(50) measured

Enabled: The Specific air permeability input field is deactivated. If measured values for air change from the blower door test are available, the measured air change for 50 Pa inside-outside pressure difference can be entered here. The following measurement conditions are assumed:

Small openings were closed during the measurement
Internal volume was determined according to EN ISO 9972, method B

The value in the Specific air permeability n(50) field is calculated using this value.

Name	Purpose	Lifetime	Type	Provider
CookieConsent	Saves your consent to using cookies.	1 year	HTML	Website
fe_typo_user	Assigns your browser to a session on the server.	session	HTTP	Website

Name	Purpose	Lifetime	Type	Provider
_ga	Used to distinguish users.	2 years	HTML	Google
_gat	Used to throttle request rate.	1 day	HTML	Google
_gid	Used to distinguish users.	1 day	HTML	Google
_ga_QTGLMF6700	Talep oranını azaltmak için Google Analytics çerezi.	2 years	HTML	Google
_gcl_au	Used by Google AdSense to experiment with advertisement efficiency.	3 months	HTML	Google
_clck	Tarayıcıda, o siteye özgü Clarity Kullanıcı Kimliğini ve tercihlerini korur. Bu sayede aynı siteye yapılan sonraki ziyaretlerde davranışın aynı kullanıcı kimliği ile ilişkilendirilmesi sağlanır.	1 years	HTML	Microsoft
_clsk	Bir kullanıcı tarafından yapılan çoklu sayfa görüntülenmeleri tek bir Clarity oturumu tarafından kaydedilir.	366 day	HTML	Microsoft
_uetsid	Bu, Microsoft Bing Ads tarafından kullanılan bir izleme bilgisidir. Web sitemizi daha önce ziyaret etmiş kullanıcıları hedeflememizi sağlar.	1 day	HTML	Microsoft
_uetvid	Ziyaretçilerin tercihlerine göre konu ile alakalı reklamları sunmak için onların ziyaret ettiği birden fazla web sitesi kullanılır.	390 day	HTML	Microsoft
ln_or	Kullanıcıların web sitesindeki davranışlarına ilişkin istatistiksel verileri kaydeder. Web sitesi operatörü tarafından dahili analizler için kullanılır.	1 day	HTML	LinkedIn

AUTODESK REVIT IÇIN LINEAR

AUTODESK AUTOCAD İÇİN LINEAR

Details on Specific Air Permeability (50 Pa)

Specific air permeability (50 Pa)

Air change n(50) measured