modelEfficiencyCurves_Q1
Extends from ClaRa.Components.TurboMachines.Fundamentals.PumpEnergetics.BaseEnergetics.
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 |
|---|---|---|---|
| Characteristic Field - refer to documentation for details | |||
| Real | eta_hyd_nom | 0.8 | Max. hydraulic efficiency at nominal speed |
| Real | V_flow_opt_ | 0.6 | Relative position of best point at V_flow axis in p.u. |
| Real | exp_rpm | 0 | Exponent for rpm dependency of max. efficiency |
| Real | exp_flow | 2 | Exponent for volume flow dependency of efficiency |
| Expert Settings › Non-Design Operation - refer to documentation for details | |||
| Basics.Units.VolumeFlowRate | V_flow_leak | 0.00002 | Leakage mass flow |
| Expert Settings › Numerical Robustness | |||
| Basics.Units.Pressure | Delta_p_eps | 100 | Small pressure difference for linearisation around zero mass flow |
| Boolean | stabiliseDelta_p | false | Avoid chattering due to small pressure differences between inlet and outlet at small mass flows |
| Basics.Units.Time | Tau_stab | 1 | Stabiliser state time constant - refer to documentation for details. |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Components.TurboMachines.Fundamentals.IComPump_L1 | iCom (from BaseEnergetics) | ||
| ClaRa.Basics.Units.Power | P_loss (from BaseEnergetics) | Power transferred to fluid | |
| ClaRa.Basics.Units.Torque | tau_loss (from BaseEnergetics) | Loss torque | |
| ClaRa.Basics.Units.Efficiency | eta (from BaseEnergetics) | Total efficiency | |
| ClaRa.Basics.Units.Torque | tau_fluid (from BaseEnergetics) | Current fluid torque | |
| ClaRa.Basics.Units.Power | P_fluid (from BaseEnergetics) | Current fluid power | |
| ClaRa.Basics.Units.Power | P_iso (from BaseEnergetics) | Isentropic power | |
| Basics.Units.Pressure | Delta_p_maxrpm | Maximum pressure difference at current speed |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.