This model is the main zone model.
Surfaces such as windows and walls can be connectured using
the propsBus connectors and HVAC can be connected
using FluidPorts.
The model contains models or options for radiative heat exchange,
internal heat gains, interzonal air exchange and
a zone air model.
Any number of surfaces can be connected to the
propsbus of a zone.
The number of connected surfaces must be specified
using the parameter nSurf and
each of the nSurf propsbus components
has to be connected to exactly one surface.
Parameter V must be used to define the total
zone air volume.
Parameter hZone is the zone height,
which may be used to define the zone geometry.
Parameter A is the total
floor surface area of the zone.
Replaceable parameter airModel determines
the type of air model that is used.
Replaceable model occNum allows the user to choose a
way to define the number of occupants that are present in the zone.
This number of occupants is used to compute the
internal heat gains in the model.
Depending on the chosen model,
an external input yOcc may be exposed
by the zone model.
Parameter occTyp determines
occupants properties.
These properties may be used to evaluate internal comfort,
or to determine internal gains.
Parameter comfort determines
how occupant comfort may be computed.
Parameter intGai determines
internal gains model type.
By default the internal gains model considers
a fixed sensible and latent heat load and CO2 production per person.
Parameter simVieFac may be set to false to simplify the
view factor calculation. This leads to a less accurate computation
of view factors, but this approach is more robust.
It may be used when the initial equation that computes the view factors does not converge.
Replaceable model interzonalAirFlow allows to
choose between multiple options for modelling air leakage and interzonal
airflow.
This model can have a strong influence on numerics and on model results
if used inappropliately, therefore only change the default value
if you know what you are doing.
The lighting options allow to compute the thermal heat gains originating in the
zone lighting. We assume that electric power use is converted for 100 % into heat gains.
The record rooType determines the type of room, and the typical
illuminance that corresponds to such a room type.
The record ligTyp determines what kind of lighting device is used,
which contains the lighting efficacy of the device,
i.e. how much electric power is required per square meter of lighted zone.
We assume that the zone is lighted completely.
The model ligCtr determines how the lighting is controlled.
See
IDEAS.Buildings.Components.LightingControl for the available options.