Annex60.Fluid.FMI.Adaptors.Examples

On the left hand side is an HVAC system with supply and return air stream. These are all connected to the adaptor. On the right of the adaptor is a simple room model, approximated by a volume with first order dynamics and heat loss to the ambient.

Name	Description
ThermalZoneHVACNoExhaust	Example of a thermal zone and an HVAC system both exposed using the FMI adaptor
ThermalZoneHVACWithExhaust	Example of a thermal zone and an HVAC system both exposed using the FMI adaptor

Note that the there is zero net air flow into and out of the volume vol because the adaptor hvacAda conserves mass. Hence, any infiltration or exfiltration needs to be connected to the adaptor hvacAda, rather than the volume vol.

Parameters

Connectors

Modelica definition

Type	Name	Default	Description
replaceable package MediumA	Annex60.Media.Air	Medium for air
HeatFlowRate	Q_flow_nominal	3066	Nominal heat loss of the room [W]
Volume	VRoo	662.7	Room volume [m3]
MassFlowRate	m_flow_nominal	VRoo21.2/3600	Nominal mass flow rate [kg/s]

Type	Name	Description
replaceable package MediumA	Medium for air

model ThermalZoneHVACNoExhaust "Example of a thermal zone and an HVAC system both exposed using the FMI adaptor" extends Modelica.Icons.Example; replaceable package MediumA = Annex60.Media.Air "Medium for air"; Annex60.Fluid.FMI.Adaptors.HVAC hvacAda( redeclare final package Medium=MediumA, nPorts=2) "Adaptor for an HVAC system that is exposed through an FMI interface"; parameter Modelica.SIunits.HeatFlowRate Q_flow_nominal = 30*6*6 "Nominal heat loss of the room"; parameter Modelica.SIunits.Volume VRoo = 6*6*2.7 "Room volume"; parameter Modelica.SIunits.MassFlowRate m_flow_nominal=VRoo*2*1.2/3600 "Nominal mass flow rate"; Annex60.Fluid.FMI.Adaptors.ThermalZone con( redeclare package Medium = MediumA, nPorts=2) "Adaptor for thermal zone"; Modelica.Blocks.Sources.Pulse TSet( amplitude=4, period=86400, offset=273.15 + 16, startTime=7*3600) "Setpoint for room temperature"; Controls.Continuous.LimPID conPI( controllerType=Modelica.Blocks.Types.SimpleController.PI, k=1, yMax=1, yMin=0, Ti=120) "Controller"; Movers.FlowControlled_m_flow mov( redeclare package Medium = MediumA, m_flow_nominal=m_flow_nominal, addPowerToMedium=false, nominalValuesDefineDefaultPressureCurve=true, dp_nominal=1200, inputType=Annex60.Fluid.Types.InputType.Constant, energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState, filteredSpeed=false) "Fan or pump"; HeatExchangers.HeaterCooler_u hea( redeclare package Medium = MediumA, m_flow_nominal=m_flow_nominal, dp_nominal=1000, Q_flow_nominal=Q_flow_nominal, energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState) "Heater"; Sources.Boundary_pT out( redeclare package Medium = MediumA, nPorts=2, use_T_in=true) "Pressure and temperature source for outdoor"; HeatExchangers.ConstantEffectiveness hex( redeclare package Medium1 = MediumA, redeclare package Medium2 = MediumA, m1_flow_nominal=m_flow_nominal, m2_flow_nominal=m_flow_nominal, dp1_nominal=200, dp2_nominal=200) "Heat recovery"; MixingVolumes.MixingVolume vol( redeclare package Medium = MediumA, mSenFac=3, m_flow_nominal=m_flow_nominal, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial, V=VRoo, nPorts=2) "Room volume"; Modelica.Thermal.HeatTransfer.Components.ThermalConductor theCon(G= Q_flow_nominal/20) "Thermal conductance with the ambient"; Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature TBou "Fixed temperature boundary condition"; Modelica.Blocks.Sources.RealExpression TOutZon( y=273.15 + 16 - 5*cos(time/86400*2*Modelica.Constants.pi)) "Outdoor temperature used for the thermal zone model"; Modelica.Blocks.Sources.RealExpression TOutHVAC( y=273.15 + 16 - 5*cos(time/86400*2*Modelica.Constants.pi)) "Outdoor temperature used for the HVAC model"; equation connect(mov.port_b,hea. port_a); connect(hex.port_b1,mov. port_a); connect(out.ports[1],hex. port_b2); connect(out.ports[2],hex. port_a1); connect(conPI.y, hea.u); connect(TBou.port,theCon. port_a); connect(vol.heatPort, theCon.port_b); connect(conPI.u_s, TSet.y); connect(TOutZon.y, TBou.T); connect(hvacAda.TAirZon[1], conPI.u_m); connect(con.ports[1], vol.ports[1]); connect(vol.heatPort, con.heaPorAir); connect(con.ports[2], vol.ports[2]); connect(hvacAda.fluPor, con.fluPor); connect(hea.port_b, hvacAda.ports[1]); connect(hvacAda.ports[2], hex.port_a2); connect(TOutHVAC.y, out.T_in); end ThermalZoneHVACNoExhaust;

Annex60.Fluid.FMI.Adaptors.Examples.ThermalZoneHVACWithExhaust

Information

Parameters

Modelica definition

Type	Name	Default	Description
replaceable package MediumA	Air	Medium for air
HeatFlowRate	Q_flow_nominal	3066	Nominal heat loss of the room [W]
Volume	VRoo	662.7	Room volume [m3]
MassFlowRate	m_flow_nominal	VRoo21.2/3600	Nominal mass flow rate [kg/s]

model ThermalZoneHVACWithExhaust "Example of a thermal zone and an HVAC system both exposed using the FMI adaptor" extends Annex60.Fluid.FMI.Adaptors.Examples.ThermalZoneHVACNoExhaust( hvacAda(nPorts=3), out(nPorts=3), con(nPorts=3), vol(nPorts=3)); Movers.FlowControlled_m_flow exh( redeclare package Medium = MediumA, addPowerToMedium=false, nominalValuesDefineDefaultPressureCurve=true, dp_nominal=1200, inputType=Annex60.Fluid.Types.InputType.Constant, energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState, filteredSpeed=false, m_flow_nominal=0.1*m_flow_nominal) "Constant air exhaust"; equation connect(hvacAda.ports[3], exh.port_a); connect(exh.port_b, out.ports[3]); connect(con.ports[3], vol.ports[3]); end ThermalZoneHVACWithExhaust;