blockEquationFitReversible
Equation fit method to compute the performance of the reversable heat pump
Extends from Modelica.Blocks.Icons.Block.
Information
Block that implements the equation fit method for the reverse heat pump model Buildings.Fluid.HeatPumps.EquationFitReversible.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Data.EquationFitReversible.Generic | per | Performance data | |
| Real | scaling_factor | Scaling factor for heat pump capacity | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_small | per.hea.Q_flow*1E-9*scaling_factor | Small value for heat flow rate or power, used to avoid division by zero |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.IntegerInput | uMod | Control input signal, cooling mode= -1, off=0, heating mode=+1 | |
| Modelica.Blocks.Interfaces.RealInput | TLoaEnt | Load entering fluid temperature | |
| Modelica.Blocks.Interfaces.RealInput | TSouEnt | Source entering fluid temperature | |
| Modelica.Blocks.Interfaces.RealInput | mLoa_flow | Mass flow rate at load side | |
| Modelica.Blocks.Interfaces.RealInput | mSou_flow | Mass flow rate at source side | |
| Modelica.Blocks.Interfaces.RealInput | Q_flow_set | Required heat to meet set point | |
| Modelica.Blocks.Interfaces.RealOutput | QLoa_flow | Load heat flow rate | |
| Modelica.Blocks.Interfaces.RealOutput | QSou_flow | Source heat flow rate | |
| Modelica.Blocks.Interfaces.RealOutput | P | Compressor power | |
| Modelica.Blocks.Interfaces.RealOutput | COP | Coefficient of performance, assuming useful heat is at the load side (at Medium 1) | |
| Modelica.Units.SI.Efficiency | QRel_flow | Thermal load ratio | |
| Modelica.Units.SI.Efficiency | PRel | Power ratio | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_ava | Heat (or cooling) capacity available | |
| Real | PLR | Part load ratio |
Revisions
-
September 16, 2019 by Michael Wetter:
Refactored implementation. -
May 19, 2019, by Hagar Elarga:
First implementation.