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Innovative 3D-Shaped Structures as Volumetric Absorbers

Broeske, Robin Tim and Schwarzbözl, Peter and Birkigt, Lisa and Dung, Sebastian and Müller, Benedikt and Doerbeck, Till (2021) Innovative 3D-Shaped Structures as Volumetric Absorbers. 27th SolarPACES Conference, 27. Sep. - 01. Okt. 2021, Online Event.

[img] PDF - Only accessible within DLR
[img] PDF - Only accessible within DLR


As proven by the continuous operation of the Solar Tower Juelich, central receiver power plants with open volumetric receivers are a valid alternative to other receiver types. Evolving new manufacturing techniques will allow to advance the technology further by improving its core component, the porous absorber structures. Using ceramic 3D screen printing, the new StepRec absorber design is fabricated out of siliconized silicon carbide and is presented along with the second new structure, the Emitec absorber made of very thin metal sheets. Based on experiments in the high-flux solar simulator Synlight, the thermal efficiency of both new designs is derived for reduced-size absorber probes. The new structures outperform the state-of-the-art HiTRec absorber with efficiencies above ninety percent at air temperatures of 650°C. Full-size absorber modules have been tested under real irradiation conditions at the research platform of the Solar Tower Juelich. The thermal efficiencies of the full modules will be quantified with further experiments in the Synlight facility in the near future.

Item URL in elib:https://elib.dlr.de/189060/
Document Type:Conference or Workshop Item (Speech)
Title:Innovative 3D-Shaped Structures as Volumetric Absorbers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Broeske, Robin TimUNSPECIFIEDhttps://orcid.org/0000-0001-5157-6251UNSPECIFIED
Schwarzbözl, PeterUNSPECIFIEDhttps://orcid.org/0000-0001-9339-7884UNSPECIFIED
Birkigt, LisaExentis Technology GmbH, Otto-Schott-Straße 15, 07745 Jena, GermanyUNSPECIFIEDUNSPECIFIED
Dung, SebastianVitesco Technologies Emitec GmbH, Hauptstraße 128, 53797 Lohmar, GermanyUNSPECIFIEDUNSPECIFIED
Müller, BenediktKraftanlagen München GmbH, Ridler Straße 31c, 80339 München, GermanyUNSPECIFIEDUNSPECIFIED
Doerbeck, TillKraftanlagen München GmbH, Ridler Straße 31c, 80339 München, GermanyUNSPECIFIEDUNSPECIFIED
Date:29 September 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:open volumetric receiver, porous structures
Event Title:27th SolarPACES Conference
Event Location:Online Event
Event Type:international Conference
Event Dates:27. Sep. - 01. Okt. 2021
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:High-Temperature Thermal Technologies
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Smart Operation
Location: Jülich
Institutes and Institutions:Institute of Solar Research > Solar Power Plant Technology
Deposited By: Broeske, Robin Tim
Deposited On:28 Oct 2022 10:10
Last Modified:28 Oct 2022 10:10

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