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Calculation of radiative losses of solar receivers using viewfactors

Frie, Fabian and Stadler, Hannes (2014) Calculation of radiative losses of solar receivers using viewfactors. OpenFOAM user conference 2014, 7.-8. Okt. 2014, Berlin, Germany.

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Abstract

This presentation describes a new implementation of the view factor model into OpenFOAM, an open source CFD code. The original model is based on double area integration of the view factors whereas much better results can be achieved by using double line integration or even single line integration. With the presented model view factors can be modeled for technical meshes with an error of less than 0.001 compared to the analytical solution. Moreover, further boundary conditions necessary for the simulation of thermal receivers have been presented. These boundary conditions are used to couple radiative with convective heat transfer on adiabatic walls.

Item URL in elib:https://elib.dlr.de/91571/
Document Type:Conference or Workshop Item (Speech)
Title:Calculation of radiative losses of solar receivers using viewfactors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Frie, FabianDLR SF-PFSUNSPECIFIED
Stadler, Hanneshannes.stadler (at) dlr.deUNSPECIFIED
Date:8 October 2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, OpenFOAM, view factor, radiation
Event Title:OpenFOAM user conference 2014
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:7.-8. Okt. 2014
Organizer:ESI Group
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Point-Focusing Systems (old)
Location: Jülich
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Stadler, Hannes
Deposited On:05 Nov 2014 16:35
Last Modified:31 Jul 2019 19:48

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