modelPipeFlowVLE_L4_Simple
Extends from Basics.ControlVolumes.FluidVolumes.VolumeVLE_L4 (A 1D tube-shaped control volume considering one-phase and two-phase heat transfer in a straight pipe with static momentum balance and simple energy balance.), ClaRa.Basics.Icons.Pipe_L4, 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 |
|---|---|---|---|
| Units.DensityMassSpecific[geo.N_cv] | rho_nom (from VolumeVLE_L4) | TILMedia.VLEFluid.MixtureCompatible.Functions.density_phxi(medium, p_nom, h_nom) | Nominal density |
| Fundamental Definitions | |||
| TILMedia.VLEFluid.Types.BaseVLEFluid | medium (from VolumeVLE_L4) | simCenter.fluid1 | Medium in the component |
| Boolean | frictionAtInlet (from VolumeVLE_L4) | false | True if pressure loss between first cell and inlet shall be considered |
| Boolean | frictionAtOutlet (from VolumeVLE_L4) | false | True if pressure loss between last cell and outlet shall be considered |
| Nominal Values | |||
| Units.Pressure[geo.N_cv] | p_nom (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Nominal pressure |
| Units.EnthalpyMassSpecific[geo.N_cv] | h_nom (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Nominal specific enthalpy for single tube |
| Units.MassFlowRate | m_flow_nom (from VolumeVLE_L4) | 100 | Nominal mass flow w.r.t. all parallel tubes |
| Units.PressureDifference | Delta_p_nom (from VolumeVLE_L4) | 1e4 | Nominal pressure loss w.r.t. all parallel tubes |
| Initialisation | |||
| Integer | initOption (from VolumeVLE_L4) | 0 | Type of initialisation |
| Units.EnthalpyMassSpecific[geo.N_cv] | h_start (from VolumeVLE_L4) | ones(geo.N_cv)*800e3 | Initial specific enthalpy for single tube |
| Units.Pressure[geo.N_cv] | p_start (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Initial pressure |
| Units.MassFraction[medium.nc - 1] | xi_start (from VolumeVLE_L4) | zeros(medium.nc - 1) | Initial composition |
| Initialisation › Model Settings | |||
| Boolean | useHomotopy (from VolumeVLE_L4) | simCenter.useHomotopy | true, if homotopy method is used during initialisation |
| Summary and Visualisation | |||
| Boolean | showExpertSummary (from VolumeVLE_L4) | simCenter.showExpertSummary | True, if an extended summary shall be shown, else false |
| Boolean | showData (from VolumeVLE_L4) | false | True, if a data port containing p,T,h,s,m_flow shall be shown, else false |
| Boolean | contributeToCycleSummary | simCenter.contributeToCycleSummary | True if component shall contribute to automatic efficiency calculation |
| Boolean | heatFlowIsLoss | true | True if negative heat flow is a loss (not a process product) |
| Geometry | |||
| Basics.Units.Length | length | 1 | Length of the pipe (one pass) |
| Basics.Units.Length | diameter_i | 0.1 | Inner diameter of the pipe |
| Basics.Units.Length | z_in | 0.1 | Height of inlet above ground |
| Basics.Units.Length | z_out | 0.1 | Height of outlet above ground |
| Integer | N_tubes | 1 | Number Of parallel pipes |
| Integer | N_passes | 1 | Number of passes of the tubes |
| Integer | orientation | 0 | Main orientation of tube bundle (N_passes>1) |
| Discretisation | |||
| Integer | N_cv | 3 | Number of finite volumes |
| Basics.Units.Length[N_cv] | Delta_x | ClaRa.Basics.Functions.GenerateGrid({0}, length*N_passes, N_cv) | Discretisation scheme |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.FluidPortIn | inlet (from VolumeVLE_L4) | Inlet port | |
| ClaRa.Basics.Interfaces.FluidPortOut | outlet (from VolumeVLE_L4) | Outlet port | |
| ClaRa.Basics.Interfaces.HeatPort_a[geo.N_cv] | heat (from VolumeVLE_L4) | ||
| Basics.Interfaces.EyeOut | eye |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| String | complexity (from ComplexityLevel) | "??" | |
| ClaRa.SimCenter | simCenter (from VolumeVLE_L4) | ||
| Summary | summary (from VolumeVLE_L4) | ||
| PressureLoss | pressureLoss (from VolumeVLE_L4) | Pressure loss model | |
| HeatTransfer | heatTransfer (from VolumeVLE_L4) | heat transfer model | |
| Geometry | geo (from VolumeVLE_L4) | ||
| MechanicalEquilibrium | mechanicalEquilibrium (from VolumeVLE_L4) | Mechanical equilibrium model | |
| ClaRa.Basics.Interfaces.Connected2SimCenter | connected2SimCenter |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.