Buildings.Obsolete.Examples.VAVReheat.Validation
Package with validation models
Information
This package contains validation models.
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
Package Content
| Name | Description |
|---|---|
 Guideline36SteadyState
|
Validation of detailed model that is at steady state with constant weather data |
 VAVBranch
|
Validation for the VAVBranch class |
Buildings.Obsolete.Examples.VAVReheat.Validation.Guideline36SteadyState
Validation of detailed model that is at steady state with constant weather data
Information
This model validates that the detailed model of multiple rooms and an HVAC system starts at and remains at exactly 20°C room air temperature if there is no solar radiation, constant outdoor conditions, no internal gains and no HVAC operation.
Extends from Buildings.Obsolete.Examples.VAVReheat.Guideline36 (Variable air volume flow system with terminal reheat and five thermal zones).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| replaceable package MediumA | Air | Medium model for air | |
| replaceable package MediumW | Water | Medium model for water | |
| MassFlowRate | mCor_flow_nominal | ACHCor*VRooCor*conv | Design mass flow rate core [kg/s] |
| MassFlowRate | mSou_flow_nominal | ACHSou*VRooSou*conv | Design mass flow rate south [kg/s] |
| MassFlowRate | mEas_flow_nominal | ACHEas*VRooEas*conv | Design mass flow rate east [kg/s] |
| MassFlowRate | mNor_flow_nominal | ACHNor*VRooNor*conv | Design mass flow rate north [kg/s] |
| MassFlowRate | mWes_flow_nominal | ACHWes*VRooWes*conv | Design mass flow rate west [kg/s] |
| Temperature | THeaWatInl_nominal | 45 + 273.15 | Reheat coil nominal inlet water temperature [K] |
| Real | ACHCor | 6 | Design air change per hour core [1/h] |
| Real | ACHSou | 6 | Design air change per hour south [1/h] |
| Real | ACHEas | 9 | Design air change per hour east [1/h] |
| Real | ACHNor | 6 | Design air change per hour north [1/h] |
| Real | ACHWes | 7 | Design air change per hour west [1/h] |
Modelica definition
model Guideline36SteadyState
"Validation of detailed model that is at steady state with constant weather data"
extends Buildings.Obsolete.Examples.VAVReheat.Guideline36(
flo(
gai(K=0*[0.4; 0.4; 0.2]),
use_windPressure=false,
sampleModel=false),
hvac(
occSch(occupancy=3600*24*365*{1,2}, period=2*3600*24*365)),
weaDat(
pAtmSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
ceiHeiSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
totSkyCovSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
opaSkyCovSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
TDryBulSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
TDewPoiSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
TBlaSkySou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
TBlaSky=293.15,
relHumSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
winSpeSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
winDirSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
HInfHorSou=Buildings.BoundaryConditions.Types.DataSource.Parameter,
HSou=Buildings.BoundaryConditions.Types.RadiationDataSource.Input_HGloHor_HDifHor));
Buildings.Controls.OBC.CDL.Reals.Sources.Constant solRad(k=0) "Solar radiation";
equation
connect(weaDat.HDifHor_in, solRad.y);
connect(weaDat.HGloHor_in, solRad.y);
end Guideline36SteadyState;
Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch
Validation for the VAVBranch class
Information
This model validates the obsolete model Buildings.Obsolete.Examples.VAVReheat.BaseClasses.VAVBranch.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Modelica definition
model VAVBranch "Validation for the VAVBranch class"
extends Modelica.Icons.Example;
package MediumA = Buildings.Media.Air "Medium model for air";
package MediumW = Buildings.Media.Water "Medium model for water";
Buildings.Obsolete.Examples.VAVReheat.BaseClasses.VAVBranch vavBra(
redeclare package MediumA = MediumA,
redeclare package MediumW = MediumW,
terHea(show_T=true),
m_flow_nominal=45,
VRoo=275);
Buildings.Fluid.Sources.Boundary_ph sinAir(
redeclare package Medium = MediumA,
p(displayUnit="Pa") = 1E5,
nPorts=1) "Sink for terminal reheat box outlet air";
Modelica.Blocks.Sources.Ramp TSupAir(
y(final unit="K", displayUnit="degC"),
height=5,
duration(displayUnit="h") = 3600,
offset=285,
startTime(displayUnit="h") = 3600) "Supply Air Temperature";
Modelica.Blocks.Sources.Ramp heaSig(
height=1,
duration(displayUnit="h") = 3600,
offset=0,
startTime(displayUnit="h") = 10800) "Signal to reheat coil valve";
Modelica.Blocks.Sources.Ramp damSig(
height=0.4,
duration(displayUnit="h") = 3600,
offset=0.2,
startTime(displayUnit="h") = 18000) "Signal to VAV Box Damper";
Buildings.Fluid.Sources.Boundary_pT bou(
redeclare package Medium = MediumA,
p(displayUnit="Pa") = 1E5 + 1500,
use_T_in=true,
nPorts=1);
equation
connect(vavBra.port_b, sinAir.ports[1]);
connect(heaSig.y, vavBra.yVal);
connect(damSig.y, vavBra.yVAV);
connect(bou.ports[1], vavBra.port_a);
connect(TSupAir.y, bou.T_in);
end VAVBranch;