modelGuideline36Summer_Autosizing
Variable air volume flow system with terminal reheat and five thermal zones controlled using an ASHRAE G36 controller with HVAC sized using autosizing
Extends from Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.Guideline36Winter_Autosizing (Variable air volume flow system with terminal reheat and five thermal zones controlled using an ASHRAE G36 controller, with HVAC sized using autosizing).
Information
This is the same model as Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.Guideline36Winter_Autosizing but configured for simulation of a few days in summer.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Volume | VRooCor (from HVACBuilding) | flo.VRooCor | Room volume corridor |
| Modelica.Units.SI.Volume | VRooSou (from HVACBuilding) | flo.VRooSou | Room volume south |
| Modelica.Units.SI.Volume | VRooNor (from HVACBuilding) | flo.VRooNor | Room volume north |
| Modelica.Units.SI.Volume | VRooEas (from HVACBuilding) | flo.VRooEas | Room volume east |
| Modelica.Units.SI.Volume | VRooWes (from HVACBuilding) | flo.VRooWes | Room volume west |
| Modelica.Units.SI.Area | AFloCor (from HVACBuilding) | flo.AFloCor | Floor area corridor |
| Modelica.Units.SI.Area | AFloSou (from HVACBuilding) | flo.AFloSou | Floor area south |
| Modelica.Units.SI.Area | AFloNor (from HVACBuilding) | flo.AFloNor | Floor area north |
| Modelica.Units.SI.Area | AFloEas (from HVACBuilding) | flo.AFloEas | Floor area east |
| Modelica.Units.SI.Area | AFloWes (from HVACBuilding) | flo.AFloWes | Floor area west |
| Real | conv (from HVACBuilding) | 1.2/3600 | Conversion factor for nominal mass flow rate |
| Modelica.Units.SI.MassFlowRate | mCor_flow_nominal (from HVACBuilding) | Design mass flow rate core | |
| Modelica.Units.SI.MassFlowRate | mSou_flow_nominal (from HVACBuilding) | Design mass flow rate south | |
| Modelica.Units.SI.MassFlowRate | mEas_flow_nominal (from HVACBuilding) | Design mass flow rate east | |
| Modelica.Units.SI.MassFlowRate | mNor_flow_nominal (from HVACBuilding) | Design mass flow rate north | |
| Modelica.Units.SI.MassFlowRate | mWes_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.Temperature | THeaWatInl_nominal (from HVACBuilding) | 45 + 273.15 | Reheat coil nominal inlet water temperature |
| Modelica.Units.SI.Temperature | TZonSetAve (from Guideline36Winter_Autosizing) | (mCor_flow_nominal*flo.cor.sizCoo.TSet + mSou_flow_nominal*flo.sou.sizCoo.TSet + mEas_flow_nominal*flo.eas.sizCoo.TSet + mNor_flow_nominal*flo.nor.sizCoo.TSet + mWes_flow_nominal*flo.wes.sizCoo.TSet)/(mCor_flow_nominal + mSou_flow_nominal + mEas_flow_nominal + mNor_flow_nominal + mWes_flow_nominal) | Average cooling zone temperature set point weighted by zone airflow |
| Modelica.Units.SI.MassFraction | XZonSetAve (from Guideline36Winter_Autosizing) | (mCor_flow_nominal*flo.cor.sizCoo.XSet + mSou_flow_nominal*flo.sou.sizCoo.XSet + mEas_flow_nominal*flo.eas.sizCoo.XSet + mNor_flow_nominal*flo.nor.sizCoo.XSet + mWes_flow_nominal*flo.wes.sizCoo.XSet)/(mCor_flow_nominal + mSou_flow_nominal + mEas_flow_nominal + mNor_flow_nominal + mWes_flow_nominal) | Average cooling zone humidity ratio cooling set point weighted by zone airflow |
| Modelica.Units.SI.Temperature | TCooAirSup_nominal (from Guideline36Winter_Autosizing) | 12 + 273.15 | Nominal discharge air temperature for AHU during cooling |
| Modelica.Units.SI.MassFraction | XCooAirSup_nominal (from Guideline36Winter_Autosizing) | 0.0085/(1 + 0.0085) | Nominal discharge air humidity ratio for AHU during cooling |
| Modelica.Units.SI.HeatFlowRate | QCooSenAHU_flow_nominal (from Guideline36Winter_Autosizing) | hvac.mCooAir_flow_nominal*cpAir*(TCooAirSup_nominal - hvac.TCooAirMix_nominal) | Nominal sensible cooling load on AHU cooling coil |
| Modelica.Units.SI.HeatFlowRate | QCooLatAHU_flow_nominal (from Guideline36Winter_Autosizing) | hvac.mCooAir_flow_nominal*h_fg*(XCooAirSup_nominal - hvac.wCooAirMix_nominal) | Nominal latent cooling load on AHU cooling coil |
| Modelica.Units.SI.Temperature | THeaAirDis_nominal (from Guideline36Winter_Autosizing) | 40 + 273.15 | Nominal discharge air temperature for VAV boxes during heating |
| Modelica.Units.SI.SpecificHeatCapacity | cpAir (from Guideline36Winter_Autosizing) | MediumA.specificHeatCapacityCp(state_default) | Specific heat capacity of air at default medium state |
| Modelica.Units.SI.SpecificEnergy | h_fg (from Guideline36Winter_Autosizing) | MediumA.enthalpyOfCondensingGas(TCooAirSup_nominal) | Latent heat of water vapor |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Examples.VAVReheat.BaseClasses.PartialHVAC | hvac (from HVACBuilding) | ||
| Buildings.Examples.VAVReheat.BaseClasses.PartialFloor | flo (from HVACBuilding) | ||
| Buildings.BoundaryConditions.WeatherData.ReaderTMY3 | weaDat (from HVACBuilding) | Weather data reader | |
| Fluid.Sources.Boundary_pT | sinHea (from HVACBuilding) | Sink for heating coil | |
| Fluid.Sources.Boundary_pT | souHea (from HVACBuilding) | Source for heating coil | |
| Fluid.Sources.Boundary_pT | sinCoo (from HVACBuilding) | Sink for cooling coil | |
| Fluid.Sources.Boundary_pT | souCoo (from HVACBuilding) | Source for cooling coil loop | |
| Fluid.Sources.Boundary_pT | souHeaTer (from HVACBuilding) | Source for heating of terminal boxes | |
| Fluid.Sources.Boundary_pT | sinHeaTer (from HVACBuilding) | Source for heating of terminal boxes |
Revisions
-
July 23, 2026, by David Blum:
First implementation.