modelGuideline36SteadyState

Validation of detailed model that is at steady state with constant weather data
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Extends from Buildings.Examples.VAVReheat.Guideline36 (Variable air volume flow system with terminal reheat and five thermal zones).

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.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.VolumeVRooCor (from HVACBuilding)flo.VRooCorRoom volume corridor
Modelica.Units.SI.VolumeVRooSou (from HVACBuilding)flo.VRooSouRoom volume south
Modelica.Units.SI.VolumeVRooNor (from HVACBuilding)flo.VRooNorRoom volume north
Modelica.Units.SI.VolumeVRooEas (from HVACBuilding)flo.VRooEasRoom volume east
Modelica.Units.SI.VolumeVRooWes (from HVACBuilding)flo.VRooWesRoom volume west
Modelica.Units.SI.AreaAFloCor (from HVACBuilding)flo.AFloCorFloor area corridor
Modelica.Units.SI.AreaAFloSou (from HVACBuilding)flo.AFloSouFloor area south
Modelica.Units.SI.AreaAFloNor (from HVACBuilding)flo.AFloNorFloor area north
Modelica.Units.SI.AreaAFloEas (from HVACBuilding)flo.AFloEasFloor area east
Modelica.Units.SI.AreaAFloWes (from HVACBuilding)flo.AFloWesFloor area west
Realconv (from HVACBuilding)1.2/3600Conversion factor for nominal mass flow rate
Modelica.Units.SI.MassFlowRatemCor_flow_nominal (from HVACBuilding)Design mass flow rate core
Modelica.Units.SI.MassFlowRatemSou_flow_nominal (from HVACBuilding)Design mass flow rate south
Modelica.Units.SI.MassFlowRatemEas_flow_nominal (from HVACBuilding)Design mass flow rate east
Modelica.Units.SI.MassFlowRatemNor_flow_nominal (from HVACBuilding)Design mass flow rate north
Modelica.Units.SI.MassFlowRatemWes_flow_nominal (from HVACBuilding)Design mass flow rate west
Modelica.Units.SI.MassFlowRate[5]mCooVAV_flow_nominal (from HVACBuilding){mSou_flow_nominal, mEas_flow_nominal, mNor_flow_nominal, mWes_flow_nominal, mCor_flow_nominal}Design mass flow rate of each zone
Modelica.Units.SI.TemperatureTHeaWatInl_nominal (from HVACBuilding)45 + 273.15Reheat coil nominal inlet water temperature
RealACHCor (from Guideline36)6Design air change per hour core
RealACHSou (from Guideline36)6Design air change per hour south
RealACHEas (from Guideline36)9Design air change per hour east
RealACHNor (from Guideline36)6Design air change per hour north
RealACHWes (from Guideline36)7Design air change per hour west

Components

TypeNameDefaultDescription
Buildings.Examples.VAVReheat.BaseClasses.PartialHVAChvac (from HVACBuilding)
Buildings.Examples.VAVReheat.BaseClasses.PartialFloorflo (from HVACBuilding)
Buildings.BoundaryConditions.WeatherData.ReaderTMY3weaDat (from HVACBuilding)Weather data reader
Fluid.Sources.Boundary_pTsinHea (from HVACBuilding)Sink for heating coil
Fluid.Sources.Boundary_pTsouHea (from HVACBuilding)Source for heating coil
Fluid.Sources.Boundary_pTsinCoo (from HVACBuilding)Sink for cooling coil
Fluid.Sources.Boundary_pTsouCoo (from HVACBuilding)Source for cooling coil loop
Fluid.Sources.Boundary_pTsouHeaTer (from HVACBuilding)Source for heating of terminal boxes
Fluid.Sources.Boundary_pTsinHeaTer (from HVACBuilding)Source for heating of terminal boxes
Buildings.Controls.OBC.CDL.Reals.Sources.ConstantsolRadSolar radiation

Revisions

  • October 4, 2021, by Michael Wetter:
    Refactored Buildings.Examples.VAVReheat and its base classes to separate building from HVAC model.
    This is for issue #2652.
  • September 16, 2021, by Michael Wetter:
    Removed assignment of parameter lat as this is now obtained from the weather data reader.
    This is for IBPSA, #1477.
  • April 30, 2021, by Michael Wetter:
    Reformulated replaceable class and introduced floor areas in base class to avoid access of components that are not in the constraining type.
    This is for issue #2471.
  • April 18, 2020, by Michael Wetter:
    First implementation.