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Improvement of ceramic absorber material for open volumetric receivers

Schwarzbözl, Peter and Hack, Udo and Ebert, Miriam (2011) Improvement of ceramic absorber material for open volumetric receivers. In: referiert. 17th SolarPACES 2011 Conference, 20.-23. Sept. 2011, Granada, Spain.

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Abstract

The air receiver technology, which is demonstrated at the solar tower of Jülich, uses ceramic honeycomb structures to absorb concentrated solar radiation and transfer the heat to an air flow. Therefore, the absorbers have to be highly porous to let the radiation penetrate deeply into the structure but must also feature a large internal heat transfer surface. The paper reveals the basic correlation between geometry and performance by means of a simplified mathematical model. New developments of honeycomb absorbers are presented and their thermal efficiency measured in a laboratory test is shown. The absorber development is accompanied by a thermal shock and cycle test program to assure sufficient mechanical stability

Item URL in elib:https://elib.dlr.de/83597/
Document Type:Conference or Workshop Item (Paper)
Title:Improvement of ceramic absorber material for open volumetric receivers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schwarzbözl, Peterpeter.schwarzboezl (at) dlr.deUNSPECIFIED
Hack, UdoSaint-Gobain Industrie-Keramik RödentalUNSPECIFIED
Ebert, Miriammiriam.ebert (at) dlr.deUNSPECIFIED
Date:2011
Journal or Publication Title:referiert
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:air receiver, volumetric absorber, porous material, cellular ceramics, honeycomb structure, high flux solar simulator
Event Title:17th SolarPACES 2011 Conference
Event Location:Granada, Spain
Event Type:international Conference
Event Dates:20.-23. Sept. 2011
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 - Punktfokussierende Systeme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research
Deposited By: Uhlig, Tamara
Deposited On:29 Jul 2013 16:41
Last Modified:29 Jul 2013 16:41

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