modelConstantCarnotEffectiveness
Validation case for modular Carnot approach
Extends from BaseClasses.PartialModularComparison (Partial model for comparison to the Carnot model), Modelica.Icons.Example (Icon for runnable examples).
Information
Validation case for Buildings.Fluid.Chillers.ModularReversible.RefrigerantCycle.ConstantCarnotEffectiveness.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.HeatFlowRate | QUse_flow_nominal (from PartialComparison) | 30E3 | Nominal capacity |
| Modelica.Units.SI.TemperatureDifference | dTEva_nominal (from PartialComparison) | 10 | Temperature difference evaporator outlet-inlet |
| Modelica.Units.SI.TemperatureDifference | dTCon_nominal (from PartialComparison) | 10 | Temperature difference condenser outlet-inlet |
| Modelica.Units.SI.Pressure | dp1_nominal (from PartialComparison) | 6000 | Pressure difference over condenser |
| Modelica.Units.SI.Pressure | dp2_nominal (from PartialComparison) | 6000 | Pressure difference over evaporator |
| Real | etaCarnot_nominal (from PartialComparison) | 0.3 | Carnot effectiveness (=COP/COP_Carnot) used during simulation if use_eta_Carnot_nominal = true |
| Modelica.Units.SI.Time | tau1 (from PartialComparison) | 60 | Time constant at nominal flow rate (used if energyDynamics1 <> Modelica.Fluid.Types.Dynamics.SteadyState) |
| Modelica.Units.SI.Temperature | T1_start (from PartialComparison) | 303.15 | Initial or guess value of set point |
| Modelica.Units.SI.Time | tau2 (from PartialComparison) | 60 | Time constant at nominal flow rate (used if energyDynamics2 <> Modelica.Fluid.Types.Dynamics.SteadyState) |
| Modelica.Units.SI.Temperature | T2_start (from PartialComparison) | 278.15 | Initial or guess value of set point |
| Modelica.Units.SI.Temperature | TConIn_nominal (from PartialComparison) | 303.15 | Nominal condenser inlet temperature |
| Modelica.Units.SI.Temperature | TEvaIn_nominal (from PartialComparison) | 288.15 | Nominal condenser inlet temperature |
| Modelica.Units.SI.Temperature | TCon_nominal (from PartialComparison) | TConIn_nominal + dTCon_nominal | Nominal condenser temperature |
| Modelica.Units.SI.Temperature | TEva_nominal (from PartialComparison) | TEvaIn_nominal - dTEva_nominal | Nominal evaporator temperature |
| Modelica.Units.SI.MassFlowRate | m2_flow_nominal (from PartialComparison) | Nominal mass flow rate at chilled water side | |
| Modelica.Units.SI.MassFlowRate | m1_flow_nominal (from PartialComparison) | Nominal mass flow rate at condenser water wide |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Sources.MassFlowSource_T | sou1 (from PartialComparison) | Condenser mass flow source | |
| Buildings.Fluid.Sources.MassFlowSource_T | sou2 (from PartialComparison) | Evaporator mass flow source | |
| Buildings.Fluid.Sources.Boundary_pT | sin1 (from PartialComparison) | ||
| Buildings.Fluid.Sources.Boundary_pT | sin2 (from PartialComparison) | ||
| Modelica.Blocks.Sources.Ramp | uCom (from PartialComparison) | Compressor control signal | |
| Modelica.Blocks.Sources.Ramp | TCon_in (from PartialComparison) | Condenser inlet temperature | |
| Modelica.Blocks.Sources.Ramp | TEva_in (from PartialComparison) | Evaporator inlet temperature | |
| Modular | chi (from PartialModularComparison) | Modular chiller model |
Revisions
-
November 13, 2023 by Fabian Wuellhorst:
First implementation.