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Numerical Optimization and Analysis of 3D-Printed Porous Structures for Open Volumetric Receivers

Broeske, Robin Tim und Schwarzbözl, Peter (2024) Numerical Optimization and Analysis of 3D-Printed Porous Structures for Open Volumetric Receivers. In: ASME 2024 18th International Conference on Energy Sustainability, ES 2024, ES2024-130497. ASME. ASME 2024 18th International Conference on Energy Sustainability, 2024-07-15 - 2024-07-17, Anaheim, California, USA. doi: 10.1115/ES2024-130497. ISBN 978-079188789-9.

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Offizielle URL: https://asmedigitalcollection.asme.org/ES/proceedings-abstract/ES2024/87899/V001T05A002/1206582

Kurzfassung

Solar tower power plants with open volumetric receivers using air as the heat transfer fluid present an alternative to existing molten salt or steam receiver systems, offering high robustness, high availability, and effective storage capabilities. As the central component of this receiver type, volumetric porous structures are responsible for the absorption of the concentrated solar irradiation and the heat transfer to the air flow. Manufacturing techniques such as 3D-printing make it possible to purposefully design the porous structures down to sub-millimeter scales. A new numerical optimization approach has been developed which allows the derivation of new porous structures precisely tailored to the available manufacturing techniques. Potential absorber designs are first characterized via three-dimensional CFD and raytracing simulations. The resulting effective properties are then used by a 1D LTNE homogeneous model to evaluate the absorber performance. The variation of the absorber geometry is controlled by an optimization method, both an exact and a heuristic method have been implemented within the new approach. A key feature of the design process is the explicit incorporation of the limitations and capabilities of the associated manufacturing technologies. This allows to directly ensure the manufacturability of the optimized absorber designs. The approach has been applied to derive optimized absorber designs which were then created via 3D-printing and experimentally evaluated confirming their potential as solar absorbers.

elib-URL des Eintrags:https://elib.dlr.de/208628/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Numerical Optimization and Analysis of 3D-Printed Porous Structures for Open Volumetric Receivers
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Broeske, Robin TimRobin.Broeske (at) dlr.dehttps://orcid.org/0000-0001-5157-6251172021880
Schwarzbözl, PeterPeter.Schwarzboezl (at) dlr.dehttps://orcid.org/0000-0001-9339-7884NICHT SPEZIFIZIERT
Datum:24 September 2024
Erschienen in:ASME 2024 18th International Conference on Energy Sustainability, ES 2024
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1115/ES2024-130497
Seitenbereich:ES2024-130497
Verlag:ASME
Name der Reihe:Energy Sustainability
ISBN:978-079188789-9
Status:veröffentlicht
Stichwörter:concentrated solar power, open volumetric receiver, porous absorbers, numeric optimization
Veranstaltungstitel:ASME 2024 18th International Conference on Energy Sustainability
Veranstaltungsort:Anaheim, California, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:15 Juli 2024
Veranstaltungsende:17 Juli 2024
Veranstalter :Advanced Energy Systems Division, Solar Energy Division
HGF - Forschungsbereich:Energie
HGF - Programm:Materialien und Technologien für die Energiewende
HGF - Programmthema:Thermische Hochtemperaturtechnologien
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SW - Solar- und Windenergie
DLR - Teilgebiet (Projekt, Vorhaben):E - Intelligenter Betrieb
Standort: Jülich
Institute & Einrichtungen:Institut für Solarforschung > Solare Kraftwerktechnik
Hinterlegt von: Brockel, Linda
Hinterlegt am:19 Nov 2024 10:14
Letzte Änderung:19 Feb 2025 09:05

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