modelDIN16798
Empirical expression according to DIN EN 16798-7 (2017)
Extends from AixLib.Airflow.WindowVentilation.BaseClasses.PartialEmpiricalFlowStack (Partial model for empirical expressions with stack effect considered).
Information
This model contains the empirical expression according to DIN CEN/TR 16798-8 (DIN SPEC 32739-8):2018-03.
References
DIN Deutsches Institut für Normung e. V. (2018.03). Energieeffizienz von Gebäuden – Lüftung von Gebäuden – Teil 8: Interpretation der Anforderungen der EN 16798-7 – Berechnungsmethoden zur Bestimmung der Luftvolumenströme in Gebäuden einschließlich Infiltration (Modul M5-5): Englische Fassung CEN/TR 16798-8:2017 (DIN CEN/TR 16798-8). Beuth Verlag GmbH.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | winClrWidth (from PartialEmpiricalFlow) | Width of the window clear opening | |
| Modelica.Units.SI.Height | winClrHeight (from PartialEmpiricalFlow) | Height of the window clear opening | |
| Boolean | use_opnWidth_in (from PartialEmpiricalFlow) | openingArea.use_opnWidth_in | Use input port for window sash opening |
| String | varNameIntRes (from PartialEmpiricalFlow) | Variable name of interim result | |
| Modelica.Units.SI.Height | heightASL | 0 | Height above sea level |
| Boolean | winOpnBeh | false | Activate window opening behavior depending on ambient temperature and wind speed |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | opnWidth_in (from PartialEmpiricalFlow) | Conditional input port for window sash opening width | |
| Modelica.Blocks.Interfaces.RealOutput | V_flow (from PartialEmpiricalFlow) | Ventilation flow rate | |
| Modelica.Blocks.Interfaces.RealInput | TRoom (from PartialEmpiricalFlowStack) | Room temperature, ranging from 0 to 40 °C | |
| Modelica.Blocks.Interfaces.RealInput | TAmb (from PartialEmpiricalFlowStack) | Ambient temperature, ranging from -30 to 50 °C | |
| Modelica.Blocks.Interfaces.RealInput | winSpe10 | Local wind speed at a height of 10 m |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| OpeningArea | openingArea (from PartialEmpiricalFlow) | Model instance for window opening area calculation | |
| Real | intRes (from PartialEmpiricalFlow) | Interim result used to check the if assertion is raised in root calculation | |
| Integer | errCouIntRes (from PartialEmpiricalFlow) | Warning counter for interim result warnings |
Revisions
-
June 14, 2024, by Jun Jiang:
First implementation (see issue 1492) -
Dec. 16, 2024, by Jun Jiang:
Add parameter for window opening behavior (see issue 1561)