packageEmpiricalExpressions
Empirical expressions for calculation of the airflow
Extends from Modelica.Icons.VariantsPackage (Icon for package containing variants).
Information
This package contains different empirical expressions to estimate the air flow rate by single-sided window ventilation.
The table below presents the applicable use cases for each expression.
Model |
Simple opening |
Side-hung opening |
Top- and Bottom-hung opening |
Pivot opening |
Sliding opening |
Gids and Phaff (1982) |
Y |
? |
? |
? |
? |
Warren and Parkins (1984) |
Y |
? |
? |
? |
? |
Maas (1995) |
N |
Y |
Y |
N |
N |
Hall (2004) |
N |
N |
Only bottom-hung, inward |
N |
N |
Larsen and Heiselberg (2008) |
Y |
? |
? |
? |
? |
ASHRAE (2009) |
Y |
? |
? |
? |
? |
Caciolo et al. (2013) |
Y |
? |
? |
? |
? |
VDI 2078 (2015) |
Y |
N |
Only bottom-hung, inward |
N |
N |
Tang et al. (2016) |
Y |
? |
? |
? |
? |
DIN EN 16798-7 (2017) |
Y |
N |
Y |
N |
Y |
Jiang et al. (2022) |
N |
N |
Only bottom-hung, inward |
N |
N |
DIN/TS 4108-8 (2022) |
Y |
Y |
Y |
Y |
Y |
- Y = Applicable
- ? = Applicable without validation
- N = Not applicable
Contents
| Name | Description |
|---|---|
| ASHRAE | Empirical expression according to ASHRAE handbook (2009) |
| Caciolo | Empirical expression developed by Caciolo et al. (2013) |
| DIN16798 | Empirical expression according to DIN EN 16798-7 (2017) |
| DIN4108 | Empirical expression according to DIN/TS 4108-8 (2022) |
| GidsPhaff | Empirical expression developed by de Gids and Phaff (1982) |
| Hall | Empirical expression developed by Hall (2004) |
| Jiang | Empirical expression developed by Jiang et al. (2022) |
| LarsenHeiselberg | Empirical expression developed by Larsen and Heiselberg (2008) |
| Maas | Empirical expression developed by Maas (1995) |
| Tang | Empirical expression developed by Tang et al. (2016) |
| VDI2078 | Empirical expression according to VDI 2078 (2015) |
| WarrenParkins | Empirical expression developed by Warren and Parkins (1984) |