modelElectricEIR

Test model for chiller electric EIR
Diagram of ElectricEIROpen the diagram
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Extends from Modelica.Icons.Example (Icon for runnable examples), Buildings.Fluid.Chillers.Examples.BaseClasses.PartialElectric (Base class for test model of chiller electric EIR).

Information

Example that simulates a chiller whose efficiency is computed based on the condenser entering and evaporator leaving fluid temperature. A bicubic polynomial is used to compute the chiller part load performance.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.PowerP_nominal (from PartialElectric)Nominal compressor power (at y=1)
Modelica.Units.SI.TemperatureDifferencedTEva_nominal (from PartialElectric)10Temperature difference evaporator inlet-outlet
Modelica.Units.SI.TemperatureDifferencedTCon_nominal (from PartialElectric)10Temperature difference condenser outlet-inlet
RealCOPc_nominal (from PartialElectric)3Chiller COP
Modelica.Units.SI.MassFlowRatemEva_flow_nominal (from PartialElectric)Nominal mass flow rate at evaporator
Modelica.Units.SI.MassFlowRatemCon_flow_nominal (from PartialElectric)Nominal mass flow rate at condenser
Data.ElectricEIR.ElectricEIRChiller_McQuay_WSC_471kW_5_89COP_VanesperChiller performance data

Components

TypeNameDefaultDescription
Buildings.Fluid.Sources.MassFlowSource_Tsou1 (from PartialElectric)Mass flow source
Buildings.Fluid.Sources.MassFlowSource_Tsou2 (from PartialElectric)Mass flow source
Buildings.Fluid.Sources.Boundary_pTsin1 (from PartialElectric)Pressure source
Buildings.Fluid.Sources.Boundary_pTsin2 (from PartialElectric)Pressure source
Modelica.Blocks.Sources.RampTSet (from PartialElectric)Set point for leaving chilled water temperature
Modelica.Blocks.Sources.RampTCon_in (from PartialElectric)Condenser inlet temperature
Modelica.Blocks.Sources.RampTEva_in (from PartialElectric)Evaporator inlet temperature
Modelica.Blocks.Sources.Pulsepulse (from PartialElectric)Pulse signal generator
Modelica.Blocks.Logical.GreaterThresholdgreaterThreshold (from PartialElectric)Greater threshold
Buildings.Fluid.FixedResistances.PressureDropres1 (from PartialElectric)Flow resistance
Buildings.Fluid.FixedResistances.PressureDropres2 (from PartialElectric)Flow resistance
Buildings.Fluid.Chillers.ElectricEIRchiChiller model

Revisions

  • October 13, 2008, by Brandon Hencey:
    First implementation.