modelVolumeVLE_L3_TwoZones
Extends from ClaRa.Basics.Icons.Volume2Zones, ClaRa.Basics.Icons.ComplexityLevel (Displays the complexity level inside model icon ).
Information
Model description: A non-adiabatic control volume without friction losses taking the geostatic pressure difference into account
- This model is derived from ThermoPower.Water.Header
- Flow reversal is supported
- Homotopy initialisation is supported
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 |
|---|---|---|---|
| Modelica.Units.SI.Density | rho_liq_nom | TILMedia.VLEFluid.MixtureCompatible.Functions.bubbleDensity_pxi(medium, p_nom) | Nominal density |
| Modelica.Units.SI.Density | rho_vap_nom | TILMedia.VLEFluid.MixtureCompatible.Functions.dewDensity_pxi(medium, p_nom) | Nominal density |
| Boolean | showExpertSummary | false | |Summary and Visualisation||True, if expert summary should be applied |
| Fundamental Definitions | |||
| TILMedia.VLEFluid.Types.BaseVLEFluid | medium | simCenter.fluid1 | Medium in the component |
| Phase Border | |||
| ClaRa.Basics.Units.Time | Tau_cond | 10 | Time constant of condensation |
| ClaRa.Basics.Units.Time | Tau_evap | Tau_cond/1000 | Time constant of evaporation |
| ClaRa.Basics.Units.CoefficientOfHeatTransfer | alpha_ph | 50000 | HTC of the phase border |
| ClaRa.Basics.Units.Area | A_heat_ph | geo.A_hor*100 | Heat transfer area at phase border |
| Real | expHT_phases | 0 | Exponent for volume dependency on inter phase HT |
| Boolean | equalPressures | true | True if pressure in liquid and vapour phase is equal |
| Initialisation | |||
| Boolean | useHomotopy | simCenter.useHomotopy | True, if homotopy method is used during initialisation |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_liq_start | -10 + TILMedia.VLEFluid.MixtureCompatible.Functions.bubbleSpecificEnthalpy_pxi(medium, p_start) | Start value of sytsem specific enthalpy |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_vap_start | +10 + TILMedia.VLEFluid.MixtureCompatible.Functions.dewSpecificEnthalpy_pxi(medium, p_start) | Start value of sytsem specific enthalpy |
| Modelica.Units.SI.Pressure | p_start | 1e5 | Start value of sytsem pressure |
| Real | level_rel_start | 0.5 | Start value for relative filling level |
| Integer | initOption | 0 | Type of initialisation |
| General › Nominal Values | |||
| Modelica.Units.SI.MassFlowRate | m_flow_nom | 10 | Nominal mass flow rates at inlet |
| Nominal Values | |||
| Modelica.Units.SI.Pressure | p_nom | 1e5 | Nominal pressure |
| Geometry | |||
| Integer | heatSurfaceAlloc | 1 | Heat transfer area to be considered |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.FluidPortIn | inlet | Inlet port | |
| ClaRa.Basics.Interfaces.FluidPortOut | outlet | Outlet port | |
| ClaRa.Basics.Interfaces.HeatPort_a | heat |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| String | complexity (from ComplexityLevel) | "??" | |
| ClaRa.SimCenter | simCenter | ||
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_liq | Specific enthalpy of liquid phase | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_vap | Specific enthalpy of vapour phase | |
| Real | drho_liqdt | ||
| Real | drho_vapdt | ||
| ClaRa.Basics.Units.Volume | volume_liq | Liquid volume | |
| ClaRa.Basics.Units.Volume | volume_vap | Vapour volume | |
| Real[2] | yps | {phaseBorder.level_rel, 1 - phaseBorder.level_rel} | Relative volume of liquid phase [1] and vapour phase [2] |
| ClaRa.Basics.Units.MassFlowRate | m_flow_cond | Condensing mass flow | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_evap | Evaporating mass flow | |
| ClaRa.Basics.Units.HeatFlowRate | Q_flow_phases | Heat flow between phases | |
| ClaRa.Basics.Units.Mass | mass_liq | Liquid mass | |
| ClaRa.Basics.Units.Mass | mass_vap | Vapour mass | |
| ClaRa.Basics.Units.Pressure | p_liq | Liquid pressure | |
| ClaRa.Basics.Units.Pressure | p_vap | Vapour pressure | |
| ClaRa.Basics.Units.EnthalpyFlowRate | H_flow_inliq | Enthalpy flow rate passing from inlet to liquid zone and vice versa | |
| ClaRa.Basics.Units.EnthalpyFlowRate | H_flow_invap | Enthalpy flow rate passing from inlet to vapour zone and vice versa | |
| ClaRa.Basics.Units.EnthalpyFlowRate | H_flow_outliq | Enthalpy flow rate passing from inlet to liquid zone and vice versa | |
| ClaRa.Basics.Units.EnthalpyFlowRate | H_flow_outvap | Enthalpy flow rate passing from outlet to vapour zone and vice versa | |
| TILMedia.VLEFluid.MixtureCompatible.VLEFluid_ph | fluidIn | ||
| TILMedia.VLEFluid.MixtureCompatible.VLEFluid_ph | fluidOut | ||
| HeatTransfer | heattransfer | ||
| Geometry | geo | ||
| PhaseBorder | phaseBorder | ||
| PressureLoss | pressureLoss | ||
| Summary | summary |
Contents
| Name | Description |
|---|---|
 Outline | |
 Summary | |
 HeatTransfer | |
 PhaseBorder | |
 PressureLoss | |
 Geometry |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.