modelPressurizationData
Model showing how the 'Powerlaw_1DataPoint' model can be used when data is available from a pressurization test.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This model illustrates the use of
Buildings.Airflow.Multizone.Point_m_flow
to model
infiltration through the building evelope for a known n50 value (also known as ACH50).
As the n50 value and the building volume is known,
the flow at 50 Pa is known. Dividing this flow accross the entire envelope
(typically surface weighted) and using
Buildings.Airflow.Multizone.Point_m_flow,
the infiltration airflow at lower pressure differences can be modelled.
In this example, the two models each represent 50% of the surface where airflow occured due to the pressurization test.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | n50 | 3 | ACH50, air changes at 50 Pa |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| BoundaryConditions.WeatherData.ReaderTMY3 | weaDat | ||
| Fluid.Sources.Outside_CpLowRise | west | Model with outside conditions | |
| Fluid.Sources.Outside_CpLowRise | east | Model with outside conditions | |
| Fluid.MixingVolumes.MixingVolume | room | Room model | |
| Buildings.Airflow.Multizone.Point_m_flow | pow_1dat | Crack in envelope representing 50% of the leakage area | |
| Buildings.Airflow.Multizone.Point_m_flow | pow_1dat1 | Crack in envelope representing 50% of the leakage area |
Contents
| Name | Description |
|---|---|
 Medium |
Revisions
-
April 8, 2022, by Michael Wetter:
Changed tolerance from 1E-8 to 1E-6.
This is for IBPSA, #1606. -
February 2, 2022, by Michael Wetter:
Revised implementation.
This is for IBPSA, #1436. -
May 03, 2021 by Klaas De Jonge:
Added example for simulating infiltration airflow using the Powerlaw_1DataPoint model