modelCompressorGas_L1_affinity
Extends from ClaRa.Basics.Icons.Compressor.
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 |
|---|---|---|---|
| TILMedia.Gas.Types.BaseGas | medium | simCenter.flueGasModel | |
| Boolean | allow_reverseFlow | false | |
| ClaRa.Basics.Units.RPM | rpm_nom | |Characteristic field|Nomial rotational speed | |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_max | |Characteristic field|Maximum volume flow rate at nominal speed | |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_min | 0 | |Characteristic field|V_flow(Delta_p_max, rpm_nom) |
| Real | exp_hyd | 0.5 | |Characteristic field|Exponent for affinity law |
| Real | eta | 0.85 | isentropic efficiency |
| Real | eta_mech | 0.99 | mechanical efficiency |
| Summary and Visualisation | |||
| Boolean | contributeToCycleSummary | simCenter.contributeToCycleSummary | True if component shall contribute to automatic efficiency calculation |
| Fundamental Definitions | |||
| Modelica.Units.SI.Inertia | J | Moment of Inertia | |
| Boolean | useMechanicalPort | false | True, if a mechenical flange should be used |
| Boolean | steadyStateTorque | false | True, if steady state mechanical momentum shall be used |
| ClaRa.Basics.Units.RPM | rpm_fixed | 60 | Constant rotational speed of pump |
| Characteristic field | |||
| Boolean | useDensityAffinity | true | True, if hydraulic characteristic shall be scalled w.r.t. densities according to affinity law |
| Boolean | useHead | false | True, if a compressor head (height) | False, if compressor head (pressure) should be used |
| ClaRa.Basics.Units.Pressure | Delta_p_max | 1e5 | Constatnt maximum pressure difference at rpm_nom, T_nom_char, p_nom_char, xi_nom_char |
| ClaRa.Basics.Units.Length | Head_max | 10 | Constant maximum head at flow = 0 for rpm_nom |
| ClaRa.Basics.Units.DensityMassSpecific | rho_nom | TILMedia.Gas.ObjectFunctions.density_pTxi(1e5, 293.15, {0, 0, 0, 0, 0.76, 0.23, 0, 0, 0}, InletNom.gasPointer) | Nominal density related to Delta_p_max |
| Expert Settings › Numerical Robustness | |||
| ClaRa.Basics.Units.Pressure | Delta_p_eps | 100 | Small pressure difference for linearisation around zero mass flow |
| ClaRa.Basics.Units.Time | Tau_aux | 0.1 | Time constant of auxilliary kappa states |
| Real | kappa_initial | 1.3 | Initial value for kappas |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.GasPortIn | inlet | inlet flow | |
| ClaRa.Basics.Interfaces.GasPortOut | outlet | outlet flow | |
| Modelica.Mechanics.Rotational.Interfaces.Flange_a | shaft | ||
| ClaRa.Basics.Interfaces.EyeOutGas | eyeOut |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.SimCenter | simCenter | ||
| ClaRa.Basics.Interfaces.Connected2SimCenter | connected2SimCenter | ||
| TILMedia.Gas.Gas_pT | flueGas_inlet | ||
| TILMedia.Gas.Gas_ph | flueGas_outlet | ||
| ClaRa.Basics.Units.Pressure | Delta_p | pressure increase | |
| ClaRa.Basics.Units.Power | P_hyd | Hydraulic power | |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow | ||
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_max_aff | ||
| ClaRa.Basics.Units.Pressure | Delta_p_max_aff | ||
| ClaRa.Basics.Units.Pressure | Delta_p_max_var | Pressure difference at flow= 0 for rpm_nom | |
| Modelica.Units.SI.AngularAcceleration | a | Angular acceleration of the shaft | |
| ClaRa.Basics.Units.Power | P_shaft | Mechanical power at shaft | |
| ClaRa.Basics.Units.RPM | rpm | Rotational speed | |
| Modelica.Units.SI.Torque | tau_fluid | Fluid torque | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | Delta_h | ||
| Real | kappa | ||
| Real | kappaA | ||
| Real | kappaB | ||
| Summary | summary |
Contents
| Name | Description |
|---|---|
 Outline | |
 Summary |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.