.BuildingSystems.Airflow.Multizone.Examples.PressurizationData

Information

This model illustrates the use of BuildingSystems.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 BuildingSystems.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.

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