.BuildSysPro.Building.AirFlow.HeatTransfer.VentilationFlow3CL_DPE

Information

Ventilation model for residential buildings from the DPE method (April 2013 decree) - French regulatory method for building energy performance diagnosis

Hypothesis and equations

In the DPE model, infiltration calculation only takes into account the effect of thermal draft and neglects the effect of wind.

The DPE performs an average calculation with an indoor temperature of 19°C and an average outdoor temperature for the 3 climate zones. This model lets the deltaT vary throughout the simulatio.

QvRenouvAir = QvInfiltration + QvVentilation

QvRenouvAir : total air change (m3/h)

QvInfiltration : air change due to the air permeability of the building (caused by thermal draft, the impact of the wind is being neglected)

QvVentilation : air change due to the ventilation system

QvVentilation = QvarepConv*Shab

QvarepConv : conventional air change per unit of living space (m3/h/m²) (depends on the ventilation system)

Shab : living space area (m²)

Qv4Pa : permeability of the zone at 4 Pa (m3/h)

Qv4Pa = Qv4Pa_env + 0.45 * Smea_conv * Shab

Qv4Pa_env : permeability of building envelope (m3/h)

Smea_conv : conventional value of the sum of air inlet modules at 20 Pa per unit of living area (m3/h/m²)

Qv4Pa_env = I4Pa * Sdep

I4Pa : conventional value of permeability at 4 Pa (m3/h)

Sdep : Total surface of walls with heat losses (floor excluded)

Bibliography

Annex 1 - 3CL-DPE v1.3 method

Instructions for use

Venting systems and infiltration configurations can be selected through drop-down menus.

Extracted airflow, air inlet modules, and I4Pa values ​​can also be changed manually.

Known limits / Use precautions

none

Validations

Validated model - Vincent MAGNAUDEIX 04/2013

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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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