Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.Validation
Collection of validation models
Information
This package contains validation models for the classes in Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.
Note that most validation models contain simple input data which may not be realistic, but for which the correct output can be obtained through an analytic solution. The examples plot various outputs, which have been verified against these solutions. These model outputs are stored as reference data and used for continuous validation whenever models in the library change.
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
Package Content
| Name | Description |
|---|---|
 DamperValves
|
Validate model for controlling damper and valve position of VAV reheat terminal unit |
 SystemRequests
|
Validation of model that generates system requests |
Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.Validation.DamperValves
Validate model for controlling damper and valve position of VAV reheat terminal unit
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.DamperValves for damper and valve control of VAV reheat terminal unit.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Modelica definition
model DamperValves
"Validate model for controlling damper and valve position of VAV reheat terminal unit"
extends Modelica.Icons.Example;
Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.DamperValves
damVal(kDam=1, V_flow_nominal=2)
"Output signal for controlling VAV reheat box damper and valve position";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp uHea(
duration=36000,
height=-1,
offset=1,
startTime=0) "Heating control signal";
CDL.Continuous.Sources.Ramp uCoo(
height=1,
duration=36000,
offset=0,
startTime=50400) "Cooling control signal";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant THeaSet(k=273.15 + 20)
"Zone heating setpoint temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant TZon(k=273.15 + 22)
"Zone temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant TSup(k=273.15 + 13)
"AHU supply air temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant VActMin(k=0.01)
"Active minimum airflow setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant VActHeaMin(k=0.015)
"Active heating minimum airflow setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant VActHeaMax(k=0.05)
"Active heating maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant VActCooMin(k=0.015)
"Active cooling minimum airflow setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant VActCooMax(k=0.075)
"Active cooling maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Sine VDis(
offset=0.015,
amplitude=0.002,
freqHz=1/86400) "Discharge airflow rate";
Buildings.Controls.OBC.CDL.Continuous.Sources.Constant TDis(k=273.15 + 25)
"Discharge air temperature";
CDL.Integers.Sources.Constant occSig(k=Buildings.Controls.OBC.ASHRAE.G36_PR1.Types.OperationModes.occupied)
"Occupied signal";
equation
connect(VDis.y, damVal.VDis);
connect(TDis.y, damVal.TDis);
connect(VActCooMax.y, damVal.VActCooMax);
connect(VActCooMin.y, damVal.VActCooMin);
connect(VActHeaMax.y, damVal.VActHeaMax);
connect(VActHeaMin.y, damVal.VActHeaMin);
connect(VActMin.y, damVal.VActMin);
connect(uCoo.y, damVal.uCoo);
connect(uHea.y, damVal.uHea);
connect(THeaSet.y, damVal.THeaSet);
connect(TSup.y, damVal.TSup);
connect(TZon.y, damVal.TRoo);
connect(occSig.y, damVal.uOpeMod);
end DamperValves;
Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.Validation.SystemRequests
Validation of model that generates system requests
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.SystemRequests for generating system requests.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Modelica definition
model SystemRequests
"Validation of model that generates system requests"
extends Modelica.Icons.Example;
Buildings.Controls.OBC.ASHRAE.G36_PR1.TerminalUnits.Reheat.SystemRequests
sysReq_RehBox(have_heaPla=true, have_heaWatCoi=true)
"Block outputs system requests";
Buildings.Controls.OBC.CDL.Continuous.Sources.Sine sine(freqHz=1/7200, offset
=296.15) "Generate data for setpoint";
Buildings.Controls.OBC.CDL.Discrete.UnitDelay TCooSet(samplePeriod=1800)
"Cooling setpoint temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Sine TRoo(
freqHz=1/7200,
amplitude=2,
offset=299.15) "Zone temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp uCoo(
height=0.9,
duration=7200,
offset=0.1) "Cooling loop signal";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp disAirSet(
height=0.9,
duration=7200,
offset=0.1) "Discharge airflow rate setpoint";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp disAirRate(
duration=7200,
offset=0.1,
height=0.3) "Discharge airflow rate";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp damPos(
duration=7200,
height=0.7,
offset=0.3) "Damper position";
Buildings.Controls.OBC.CDL.Continuous.Sources.Sine sine1(freqHz=1/7200,
offset=305.15) "Generate data for setpoint";
Buildings.Controls.OBC.CDL.Discrete.UnitDelay TDisSet(samplePeriod=1800)
"Discharge air setpoint temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Sine TDis(
freqHz=1/7200,
amplitude=2,
offset=293.15) "Discharge air temperature";
Buildings.Controls.OBC.CDL.Continuous.Sources.Ramp valPos(
duration=7200,
height=1,
offset=0) "Hot water valve position";
equation
connect(sine.y, TCooSet.u);
connect(TCooSet.y, sysReq_RehBox.TCooSet);
connect(TRoo.y, sysReq_RehBox.TRoo);
connect(uCoo.y, sysReq_RehBox.uCoo);
connect(disAirSet.y, sysReq_RehBox.VDisSet);
connect(disAirRate.y, sysReq_RehBox.VDis);
connect(damPos.y, sysReq_RehBox.uDam);
connect(sine1.y, TDisSet.u);
connect(TDisSet.y, sysReq_RehBox.TDisSet);
connect(TDis.y, sysReq_RehBox.TDis);
connect(valPos.y, sysReq_RehBox.uHeaVal);
end SystemRequests;