modelRadiation_gas2Wall_L2

All Geo || L2 || Radiation Between Gas and Wall

Extends from ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.Gas_HT.Radiation.HeatTransfer_L2, ClaRa.Basics.Icons.Epsilon.

Information

Model description: A simple correlation for radiant heat transfer between gas and wall inside furnaces

FEATURES

Emissivities of flue gas and wall are constant values
Heat transfer area is calculated from geometry

For detailed model documentation please consult the html-documentation shipped with ClaRa.

Authorship and Copyright Statement for original (initial) Contribution

Author:

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"
Boolean	useHomotopy (from HeatTransfer_L2)
Real	emissivity_wall	0.8	Emissivity of the wall
Real	emissivity_flame	0.9	Emissivity of the flame
Real	absorbance_flame	0.9	Absorbance of the flame
Integer	heatSurfaceAlloc	1	To be considered heat transfer area
Heat Transfer
String	temperatureDifference	"Outlet"	Temperature Difference

Connectors

Type	Name	Default	Description
ClaRa.Basics.Interfaces.HeatPort_a	heat (from HeatTransfer_L2)

Components

Type	Name	Default	Description
ClaRa.Basics.Records.IComGas_L2	iCom
Real	CF_fouling	0.8	Scaling factor accounting for the fouling of the wall
ClaRa.Basics.ControlVolumes.Fundamentals.Geometry.HollowBlock	geo
Units.Temperature	Delta_T_mean		Mean temperature

Revisions

For revisions please consult the html-documentation shipped with ClaRa.