.BuildSysPro.Building.AirFlow.HeatTransfer.WindowNaturalVentilation

Information

Natural ventilation model considering windows opening

Hypothesis and equations

Calculation of renewal air flow by windows opening based on the following equation:

air_flow = 3600 x 0.5 x Swindow x (0.001 x Vwind^2 + 0.0035 x Hwindow x abs(Tint - Text) + 0.01)^(1/2)

Bibliography

Calculation method TH-BCE RT 2012 (french building regulation) section 7.15 Calcul des débits d'air entrant liés à l'ouverture des baies

Model TF N°151 of Clim 2000. FICHE DESCRIPTIVE DU TYPE FORMEL N° 151 - Pertes liées à l'ouverture d'une fenêtre (Clim 2000)

Instructions for use

none

Known limits / Use precautions

This model considers only the flow rate drives by the difference of temperature and the wind, it does not take into account pressure considerations.

No consideration of wind direction.

Validations

Validated model compared to Clim2000 - Vincent Magnaudeix 06/2013

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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Vincent MAGNAUDEIX, EDF (2013))
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Revisions

Amy Lindsay 04/2014 : transformation de la vitesse du vent en vitesse normale à la fenêtre, pour ne pas prendre en compte la même vitesse de vent sur toutes les façades