modelInnerCycle_Chiller
Extends from AixLib.Obsolete.Year2024.Fluid.BaseClasses.PartialInnerCycle (Blackbox model of refrigerant cycle of a vapour compression machine (heat pump or chiller)), AixLib.Obsolete.BaseClasses.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).
Information
This black box model represents the refrigerant cycle of a chiller. Used in AixLib.Obsolete.Year2024.Fluid.Chillers.Chiller, this model serves the simulation of a reversible chiller. Thus, data both of chillers and heat pumps can be used to calculate the three relevant values P_el, QCon and QEva. The mode of the chiller is used to switch between the performance data of the chiller and the heat pump.
The user can choose between different types of performance data or implement a new black-box model by extending from the partial model.
- LookUpTable2D: Use 2D-data based on the DIN EN 14511
- LookUpTableND: Use SDF-data tables to model invertercontroller chillers or include other dependencies (ambient temperature etc.)
- PolynomalApproach: Use a function based approach to calculate the ouputs. Different functions are already implemented.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | use_rev (from PartialInnerCycle) | true | True if the vapour compression machine is reversible |
| Real | scalingFactor (from PartialInnerCycle) | 1 | Scaling factor of vapour compression machine |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| AixLib.Obsolete.Year2024.Controls.Interfaces.VapourCompressionMachineControlBus | sigBus (from PartialInnerCycle) | ||
| Modelica.Blocks.Interfaces.RealOutput | QCon (from PartialInnerCycle) | Heat Flow to condenser | |
| Modelica.Blocks.Interfaces.RealOutput | QEva (from PartialInnerCycle) | Heat flow from evaporator | |
| Modelica.Blocks.Interfaces.RealOutput | Pel (from PartialInnerCycle) | Electrical power consumed by compressor |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Sources.Constant | constZero (from PartialInnerCycle) | If no heating is used, the switches may still be connected | |
| Utilities.Logical.SmoothSwitch | switchQEva (from PartialInnerCycle) | If mode is false, Condenser becomes Evaporator and vice versa | |
| Utilities.Logical.SmoothSwitch | switchQCon (from PartialInnerCycle) | If mode is false, Condenser becomes Evaporator and vice versa | |
| AixLib.Utilities.Logical.SmoothSwitch | switchPel (from PartialInnerCycle) | Whether to use cooling or heating power consumption | |
| PerDataMainChi | PerformanceDataChillerCooling | ||
| PerDataRevChi | PerformanceDataChillerHeating | ||
| Modelica.Blocks.Math.Gain | gainEva | Negate QEva to match definition of heat flow direction | |
| Modelica.Blocks.Math.Gain | gainCon | Negate QCon to match definition of heat flow direction |
Contents
| Name | Description |
|---|---|
 PerDataMainChi | |
 PerDataRevChi |
Revisions
-
May 22, 2019 by Julian Matthes:
First implementation (see issue #715)