modelPowerExact
Power calculation comparison among three mover types, using exact power computation for m_flow and dp
Extends from BuildingSystems.Fluid.Movers.Validation.PowerSimplified (Power calculation comparison among three mover types, using simplified power computation for m_flow and dp).
Information
This example is identical to
BuildingSystems.Fluid.Movers.Validation.PowerSimplified, except that the
performance data for the flow controlled pumps
pump_dp and pump_m_flow contain
the pressure curves and efficiency curves.
The plot below shows that this leads to a computation of the power consumption
that is identical to the one from the speed controlled pump pump_y.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m_flow_nominal (from PowerSimplified) | 3 | Nominal mass flow rate |
| BuildingSystems.Fluid.Movers.Data.Pumps.Wilo.Stratos30slash1to8 | per (from PowerSimplified) | Pump performance data |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| BuildingSystems.Fluid.Movers.SpeedControlled_y | pump_y (from PowerSimplified) | Pump with normalised speed y as control signal | |
| BuildingSystems.Fluid.Movers.FlowControlled_dp | pump_dp (from PowerSimplified) | Pump with pressure rise as control signal | |
| BuildingSystems.Fluid.Movers.FlowControlled_m_flow | pump_m_flow (from PowerSimplified) | Pump with mass flow rate as control signal | |
| BuildingSystems.Fluid.Sources.Boundary_pT | bou (from PowerSimplified) | Pressure source | |
| BuildingSystems.Fluid.FixedResistances.PressureDrop | res (from PowerSimplified) | Flow resistance | |
| BuildingSystems.Fluid.Sources.Boundary_pT | sink (from PowerSimplified) | ||
| Modelica.Blocks.Sources.Ramp | y (from PowerSimplified) | Ramp for pump normalised speed control signal | |
| Modelica.Blocks.Sources.RealExpression | dpSet (from PowerSimplified) | Pressure rise across pump | |
| Modelica.Blocks.Sources.RealExpression | m_flowSet (from PowerSimplified) | Pump mass flow rate | |
| Modelica.Blocks.Routing.Multiplex3 | result (from PowerSimplified) |
Revisions
-
October 15, 2021, by Hongxiang Fu:
Fixed the image in the documentation which was cut off at the y-axis. This is for IBPSA, #1533. -
March 2, 2016, by Filip Jorissen:
First implementation for #417.