modelPumpInterface_SpeedControlledNrpm
Interface for the SpeedControlled_Nrpm pump model
Extends from AixLib.Systems.HydraulicModules.BaseClasses.BasicPumpInterface (Pump interface for different pump types).
Information
Pump container for the SpeedControlled_Nrpm pump.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.NonSI.AngularVelocity_rpm | speed_rpm_nominal | 1500 | Nominal rotational speed |
| Assumptions | |||
| Boolean | allowFlowReversal (from PartialTwoPort) | true | = false to simplify equations, assuming, but not enforcing, no flow reversal |
| Nominal condition | |||
| Modelica.Units.SI.MassFlowRate | m_flow_nominal (from PartialTwoPortInterface) | Nominal mass flow rate | |
| Advanced | |||
| Modelica.Units.SI.MassFlowRate | m_flow_small (from PartialTwoPortInterface) | 1E-4*abs(m_flow_nominal) | Small mass flow rate for regularization of zero flow |
| Advanced › Diagnostics | |||
| Boolean | show_T (from PartialTwoPortInterface) | false | = true, if actual temperature at port is computed |
| Initialization | |||
| Modelica.Units.SI.Temperature | T_start (from BasicPumpInterface) | Medium.T_default | Initialization temperature |
| Dynamics › Equations | |||
| Modelica.Fluid.Types.Dynamics | energyDynamics (from BasicPumpInterface) | Modelica.Fluid.Types.Dynamics.DynamicFreeInitial | Type of energy balance: dynamic (3 initialization options) or steady state |
| Modelica.Fluid.Types.Dynamics | massDynamics (from BasicPumpInterface) | energyDynamics | Type of mass balance: dynamic (3 initialization options) or steady state |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Fluid.Interfaces.FluidPort_a | port_a (from PartialTwoPort) | Fluid connector a (positive design flow direction is from port_a to port_b) | |
| Modelica.Fluid.Interfaces.FluidPort_b | port_b (from PartialTwoPort) | Fluid connector b (positive design flow direction is from port_a to port_b) | |
| AixLib.Fluid.Movers.PumpsPolynomialBased.BaseClasses.PumpBus | pumpBus (from BasicPumpInterface) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m_flow (from PartialTwoPortInterface) | port_a.m_flow | Mass flow rate from port_a to port_b (m_flow > 0 is design flow direction) |
| Modelica.Units.SI.PressureDifference | dp (from PartialTwoPortInterface) | port_a.p - port_b.p | Pressure difference between port_a and port_b |
| Medium.ThermodynamicState | sta_a (from PartialTwoPortInterface) | if allowFlowReversal then Medium.setState_phX(port_a.p, noEvent(actualStream(port_a.h_outflow)), noEvent(actualStream(port_a.Xi_outflow))) else Medium.setState_phX(port_a.p, noEvent(inStream(port_a.h_outflow)), noEvent(inStream(port_a.Xi_outflow))) | Medium properties in port_a |
| Medium.ThermodynamicState | sta_b (from PartialTwoPortInterface) | if allowFlowReversal then Medium.setState_phX(port_b.p, noEvent(actualStream(port_b.h_outflow)), noEvent(actualStream(port_b.Xi_outflow))) else Medium.setState_phX(port_b.p, noEvent(port_b.h_outflow), noEvent(port_b.Xi_outflow)) | Medium properties in port_b |
| Fluid.Movers.SpeedControlled_y | pump | ||
| Modelica.Blocks.Logical.Switch | switchToZero | ||
| Modelica.Blocks.Sources.Constant | constZero | ||
| Modelica.Blocks.Math.Gain | gaiSpe | Pressure gain |
Revisions
- May 20, 2018, by Alexander Kümpel:
First implementation.