modelCarnot_TEva_etaPL

Test model for the part load efficiency curve with evaporator leaving temperature as input signal
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Extends from Examples.Carnot_TEva (Test model for chiller based on Carnot efficiency and evaporator outlet temperature control signal).

Information

This example extends from Buildings.Fluid.Chillers.Examples.Carnot_TEva but has a part load efficiency that varies with the load.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.TemperatureDifferencedTEva_nominal (from Carnot_TEva)-10Temperature difference evaporator outlet-inlet
Modelica.Units.SI.TemperatureDifferencedTCon_nominal (from Carnot_TEva)10Temperature difference condenser outlet-inlet
RealCOPc_nominal (from Carnot_TEva)3Chiller COP
Modelica.Units.SI.HeatFlowRateQEva_flow_nominal (from Carnot_TEva)-100E3Evaporator heat flow rate
Modelica.Units.SI.MassFlowRatem2_flow_nominal (from Carnot_TEva)QEva_flow_nominal/dTEva_nominal/4200Nominal mass flow rate at chilled water side
Modelica.Units.SI.SpecificHeatCapacitycp1_default (from Carnot_TEva)Medium1.specificHeatCapacityCp(Medium1.setState_pTX(Medium1.p_default, Medium1.T_default, Medium1.X_default))Specific heat capacity of medium 1 at default medium state

Components

TypeNameDefaultDescription
Buildings.Fluid.Chillers.Carnot_TEvachi (from Carnot_TEva)Chiller model
Buildings.Fluid.Sources.MassFlowSource_Tsou1 (from Carnot_TEva)
Buildings.Fluid.Sources.MassFlowSource_Tsou2 (from Carnot_TEva)
Buildings.Fluid.Sources.Boundary_pTsin1 (from Carnot_TEva)
Buildings.Fluid.Sources.Boundary_pTsin2 (from Carnot_TEva)
Modelica.Blocks.Sources.RampTEvaLvg (from Carnot_TEva)Control signal for evaporator leaving temperature
Modelica.Blocks.Math.GainmCon_flow (from Carnot_TEva)Condenser mass flow rate
Modelica.Blocks.Math.AddQCon_flow (from Carnot_TEva)Condenser heat flow rate

Revisions

  • February 10, 2016, by Michael Wetter:
    First implementation.