modelCharLine_L2
Extends from ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.Generic_HT.HeatTransfer_L2 ( L2 || HT-BaseClass), ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.TubeTypeVLE_L2 (Partial heat transfer model for tube-type models), ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.ShellTypeVLE_L2 (Partial heat transfer model for shell-type models).
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 |
|---|---|---|---|
| String | gas (from HeatTransferBaseGas) | "true" | |
| String | vle (from HeatTransferBaseVLE) | "true" | |
| String | liquid (from HeatTransferBaseLiquid) | "true" | |
| Boolean | useHomotopy (from HeatTransfer_L2) | ||
| Integer | HT_type | 0 | |
| String | tube (from TubeTypeVLE_L2) | "true" | |
| String | shell (from ShellTypeVLE_L2) | "true" | |
| ClaRa.Basics.Units.ThermalResistance | HR_nom | 1/(alpha_nom*geo.A_heat_CF[heatSurfaceAlloc]) | Nominal convective heat resistance |
| Integer | heatSurfaceAlloc | 2 | To be considered heat transfer area |
| Heat Transfer | |||
| ClaRa.Basics.Units.CoefficientOfHeatTransfer | alpha_nom | 10 | Constant heat transfer coefficient |
| Real[:,2] | PL_alpha | {{0, 0.2}, {0.5, 0.6}, {0.7, 0.72}, {1, 1}} | Correction factor for heat transfer in part load |
| String | temperatureDifference | "Logarithmic mean - smoothed" | Temperature Difference |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.HeatPort_a | heat (from HeatTransfer_L2) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Records.IComBase_L2 | iCom | ||
| ClaRa.Basics.ControlVolumes.Fundamentals.Geometry.GenericGeometry | geo | ||
| Real | CF_fouling | 1 | Scaling factor accounting for the fouling of the wall |
| Units.Temperature | Delta_T_wi | Temperature difference between wall and fluid inlet temperature | |
| Units.Temperature | Delta_T_wo | Temperature difference between wall and fluid outlet temperature | |
| Units.Temperature | Delta_T_mean | Mean temperature difference used for heat transfer calculation | |
| Units.Temperature | Delta_T_U | Upper temperature difference | |
| Units.Temperature | Delta_T_L | Lower temperature difference | |
| ClaRa.Basics.Units.CoefficientOfHeatTransfer | alpha | Heat transfer coefficient used for heat transfer calculation | |
| ClaRa.Basics.Units.ThermalResistance | HR | Convective heat resistance |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.