modelTraceSubstance

This validates the ability to simulate trace substances in the air
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Extends from ASHRAE2006 (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 with a trace substance simulates properly. CO2 is used as the trace substance. A concentration of 400ppm is assumed for the ambient air. For assumptions about zone CO2 sources, see the model Buildings.Examples.VAVReheat.Validation.BaseClasses.Floor.

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 ASHRAE2006)6Design air change per hour core
RealACHSou (from ASHRAE2006)6Design air change per hour south
RealACHEas (from ASHRAE2006)9Design air change per hour east
RealACHNor (from ASHRAE2006)6Design air change per hour north
RealACHWes (from ASHRAE2006)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

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.
  • May 9, 2021, by David Blum:
    First implementation.