modelChillerSetPointControl

Test model for chiller setpoint control using TrimAndResponse and LinearPieceWiseTwo

Extends from Modelica.Icons.Example.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.MassFlowRatemAir_flow_nominal61.6*2Nominal mass flow rate at fan
RealCOPc_nominal3Chiller COP
Modelica.Units.SI.MassFlowRatemCHW_flow_nominal15.2Nominal mass flow rate at chilled water
Modelica.Units.SI.MassFlowRatemCW_flow_nominalmCHW_flow_nominal/COPc_nominal*(COPc_nominal + 1)Nominal mass flow rate at condenser water
RealQRoo100

Components

TypeNameDefaultDescription
Buildings.Examples.ChillerPlant.BaseClasses.Controls.TrimAndRespondtriAndRes
Buildings.Examples.ChillerPlant.BaseClasses.Controls.LinearPiecewiseTwolinPieTwo
Buildings.Fluid.Chillers.ElectricEIRchiChiller
Buildings.Fluid.HeatExchangers.ConstantEffectivenesscoiCooling coil
Buildings.Fluid.Sources.Boundary_pTsin1
Buildings.Fluid.Sources.MassFlowSource_Tsou1
Modelica.Blocks.Sources.Constantconst
Buildings.Controls.Continuous.LimPIDlimPIDPI controller
Buildings.Fluid.Sensors.TemperatureTwoPortTRet
Buildings.Fluid.Movers.FlowControlled_m_flowpumChilled water pump
Buildings.Fluid.Storage.ExpansionVesselexpVesChi
Modelica.Blocks.Sources.BooleanConstantbooleanConstant1
Modelica.Blocks.Math.Gaingain
Buildings.Fluid.Sources.MassFlowSource_Tsou2
Buildings.Fluid.Sources.Boundary_pTsin2
Modelica.Blocks.Sources.Sinesine
Modelica.Blocks.Continuous.FirstOrderfirstOrder1
Buildings.Fluid.Sensors.TemperatureTwoPortTSup

Contents

NameDescription
Medium1
Medium2
MediumAirMedium model

Revisions

  • April 9, 2024, by Hongxiang Fu:
    Specified nominalValuesDefineDefaultPressureCurve=true in the mover component to suppress a warning. This is for #3819.
  • August 16, 2019, by Michael Wetter:
    Changed initialization of PI controller for Dymola 2020.
  • December 22, 2014 by Michael Wetter:
    Removed Modelica.Fluid.System to address issue #311.
  • March 25, 2014, by Michael Wetter:
    Updated model with new expansion vessel.
  • October 17, 2012, by Wangda Zuo:
    Revised for the new trim and respond control.
  • July 21, 2011, by Wangda Zuo:
    Added mos file and merged to library.
  • January 18, 2011, by Wangda Zuo:
    First implementation.