modelFVUController
Rule-based controller of a facade ventilation unit
Information
Overview
This model is the controller of the facade ventilation unit. It makes
use of six two-point controllers that determine heating, cooling and
ventilation demand. It further indicates if free cooling, heat
recovery or cold recovery is possible. As these are decentralized
controllers and as the fresh air temperature is measured inside the
unit, we require an additional measurement mode. This mode is
activated every two hours if there is no ventilation demand and the
unit consequently circulates air. In order to measure the correct
fresh air temperature, the circulation damper is closed for twenty
minutes. Furthermore, the exhaust air fan is switched on and the
fresh air damper is opened. This allows ambient air to flow inside
the unit. The temperature set point in cooling mode is increased by
adding the value deltaTemp to the set point in heating mode.
Parameters
| Type | Name | Default | Description |
|---|
| Modelica.Units.SI.Temperature | minimumSupTemp | 273.15 + 17 | Minimum supply air temperature |
| Real | co2SetConcentration | 600 | Set point for CO2 concentration in ppm |
| Real | maxSupFanPower | 1 | Maximum relative supply air fan power (0..1) |
| Real | maxExFanPower | 1 | Maximum relative exhaust air fan power (0..1) |
| Modelica.Units.SI.TemperatureDifference | deltaTemp | 1 | Added to the set temperature in cooling mode |
Connectors
| Type | Name | Default | Description |
|---|
| Interfaces.FVUControlBus | fVUControlBus | | Bus connector containing all inputs and outputs of the controller |
Revisions
-
Septmeber, 2014 by by Roozbeh Sangi and Marc
Baranski:
Model implemented
