modelMC_ventilation
CO2 mass flow exchange accompanying an air ventilation process. Distinguishes from the two different air zones on the presence of a thermal screen.
Extends from Greenhouses.Interfaces.CO2.Element1D (Partial water mass transfer element with two WaterMassPort connectors that does not store energy).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | thermalScreen | false | presence of a thermal screen in the greenhouse |
| Boolean | topAir | false | False for: Main air zone; True for: Top air zone |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Greenhouses.Interfaces.CO2.CO2Port_a | port_a (from Element1D) | ||
| Greenhouses.Interfaces.CO2.CO2Port_b | port_b (from Element1D) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | MC_flow (from Element1D) | CO2 flow rate from port_a -> port_b | |
| Real | dC (from Element1D) | port_a.CO2 - port_b.CO2 | |
| Real | SC | 0 | Screen closure 1:closed, 0:open |
| Real | U_vents | 0 | From 0 to 1, control of the aperture of the roof vents |
| Modelica.Units.SI.Temperature | T_a | 300 | Temperature at port a (filled square) |
| Modelica.Units.SI.Temperature | T_b | 300 | Temperature at port b (empty square) |
| Modelica.Units.SI.Velocity | u | 0 | Wind speed |
| Real | f_vent | ||
| HeatAndVapourTransfer.VentilationRates.NaturalVentilationRate_2 | airExchangeRate |