modelPumpVLE_L1_affinity
Extends from ClaRa.Components.TurboMachines.Pumps.Fundamentals.PumpVLE_affinityBase (Base class for affinity law based pumps), ClaRa.Basics.Icons.ComplexityLevel (Displays the complexity level inside model icon ).
Information
For detailed model documentation please consult the html-documentation shipped with ClaRa.
Authorship and Copyright Statement for original (initial) Contribution
Author:
DYNCAP/DYNSTART development team, Copyright © 2011-2024.References:
For references please consult the html-documentation shipped with ClaRa.
Remarks:
This component was developed by ClaRa development team under the 3-clause BSD License.
Acknowledgements:ClaRa originated from the collaborative research projects DYNCAP and DYNSTART. Both research projects were supported by the German Federal Ministry for Economic Affairs and Energy (FKZ 03ET2009 and FKZ 03ET7060).
CLA:
The author(s) have agreed to ClaRa CLA, version 1.0. See https://claralib.com/pdf/CLA.pdf
By agreeing to ClaRa CLA, version 1.0 the author has granted the ClaRa development team a permanent right to use and modify his initial contribution as well as to publish it or its modified versions under the 3-clause BSD License.
The ClaRa development team consists of the following partners:
TLK-Thermo GmbH (Braunschweig, Germany)
XRG Simulation GmbH (Hamburg, Germany).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Basics.Units.Time | Tau_rho_CF_ps | 1e-4 | Time constant for pseudo state for correction ratio of density. |
| Basics.Units.Time | Tau_rho_upstream_ps | 1e-2 | Time constant for pseudo state for upstream density. |
| Fundamental Definitions | |||
| TILMedia.VLEFluid.Types.BaseVLEFluid | medium (from Pump_Base) | simCenter.fluid1 | Medium in the component |
| Boolean | useMechanicalPort (from PumpVLE_affinityBase) | false | True, if a mechenical flange should be used |
| Boolean | steadyStateTorque (from PumpVLE_affinityBase) | false | True, if steady state mechanical momentum shall be used |
| Basics.Units.RPM | rpm_nom (from PumpVLE_affinityBase) | Nomial rotational speed | |
| Basics.Units.RPM | rpm_fixed (from PumpVLE_affinityBase) | 60 | Constant rotational speed of pump |
| Modelica.Units.SI.Inertia | J (from PumpVLE_affinityBase) | Moment of Inertia | |
| Summary and Visualisation | |||
| Boolean | showExpertSummary (from Pump_Base) | simCenter.showExpertSummary | True, if expert summary should be applied |
| Boolean | showData (from Pump_Base) | true | True, if a data port containing p,T,h,s,m_flow shall be shown, else false |
| Boolean | contributeToCycleSummary (from Pump_Base) | simCenter.contributeToCycleSummary | True if component shall contribute to automatic efficiency calculation |
| Characteristic Field | |||
| Boolean | useHead | false | True, if a pump head (height) | False, if pump head (pressure) should be used |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_max | 1 | Volume flow where Delta_p/head = 0 for rpm_nom |
| ClaRa.Basics.Units.PressureDifference | Delta_p_max | 1e5 | Constant pressure difference at flow = 0 for rpm_nom, rho_nom |
| ClaRa.Basics.Units.Length | Head_max | 10 | Constant head at flow = 0 for rpm_nom |
| ClaRa.Basics.Units.DensityMassSpecific | rho_nom | density_pTxi(iCom.medium, 1e5, 293.15, medium.xi_default) | Nominal density related to Delta_p_max |
| Expert Settings | |||
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_eps | V_flow_max/100 | Minimum volumetric flow rate for which hydraulic characteristic is still scaled with respect to density | For V_flow < abs(V_flow_eps) no density scalling is used. |
Connectors
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Basics.Units.Pressure | Delta_p (from Pump_Base) | Pressure difference between pressure side and suction side | |
| Basics.Units.VolumeFlowRate | V_flow (from Pump_Base) | Volume flow rate | |
| Basics.Units.Power | P_fluid (from Pump_Base) | Power to the fluid | |
| ClaRa.SimCenter | simCenter (from Pump_Base) | ||
| ClaRa.Basics.Interfaces.Connected2SimCenter | connected2SimCenter (from PumpVLE_affinityBase) | ||
| Modelica.Units.SI.AngularAcceleration | a (from PumpVLE_affinityBase) | Angular acceleration of the shaft | |
| Modelica.Units.SI.Torque | tau_fluid (from PumpVLE_affinityBase) | Fluid torque | |
| Basics.Units.RPM | rpm (from PumpVLE_affinityBase) | Rotational speed | |
| Basics.Units.Power | P_iso (from PumpVLE_affinityBase) | Power for isentropic pressure increase | |
| Basics.Units.Power | P_shaft (from PumpVLE_affinityBase) | Shaft power | |
| String | complexity (from ComplexityLevel) | "??" | |
| Real | mult_eta | 1/eta if pump mode else eta (turbine mode) | |
| ClaRa.Basics.Units.PressureDifference | Delta_p_max_var | Pressure difference at flow= 0 for rpm_nom | |
| Real | rho_CF | Correction ratio of density w.r.t. affinity law | |
| Real | rho_CF_ps | Pseudo correction ratio of density w.r.t. affinity law | |
| ClaRa.Basics.Units.DensityMassSpecific | rho_upstream_ps | Pseudo correction upstream density | |
| Summary | summary | ||
| ICom | iCom | ||
| Hydraulics | hydraulics | ||
| Energetics | energetics |
Contents
| Name | Description |
|---|---|
 Hydraulics | |
 Energetics | |
 Summary | |
 IComprotected |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.