modelVentilation
Information
1. Purpose of model
Calculation of heat losses due to ventilation.
2. Level of detail, physical effects considered, and physical insight
Refer to DIN 12831 for minimal air exchange rates for different usages.
3. Limits of validity
No heat regeneration considered.
4. Interfaces
HeatPort to air volume.
5. Nomenclature
(no remarks)
6. Governing Equations
V_flow=V*AXR
Q_flow=V_flow**c_p∗∆T
7. Remarks for Usage
(no remarks)
8. Validation
9. References
DIN 12831-1:2017 - Heizungsanlagen in Gebäuden, Beuth Verlag, Berlin, 2003.
Senkel, A. (2017) Vergleich verschiedener Arten der Wärmeverbrauchsmodellierung in Modelica. Master Thesis. Hamburg University of Technology.
10. Version History
Model created by Anne Senkel (anne.senkel@tuhh.de) September 2017
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Area | A | 1 | Area of Room |
| Modelica.Units.SI.Length | h | Height of Room | |
| Modelica.Units.SI.SpecificHeatCapacity | c_p | 1008 | Heat Capacity of Air |
| SI.Frequency | AXR | Air Exchange Rate |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_a | ||
| Modelica.Blocks.Interfaces.RealInput | T_outside | Outside Temperature | |
| Modelica.Blocks.Interfaces.RealInput | T_room | Room Temperature |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.VolumeFlowRate | V_flow | Volume Flow Rate due to Ventilation |
Contents
| Name | Description |
|---|---|
 Medium |