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Annual Performance Assessment of a 50 MWe Commercial Solar Tower Plant with Improved Open Volumetric Receiver

Schwarzbözl, Peter and Giuliano, Stefano and Noureldin, Kareem and Doerbeck, Till and Rossello, Aina and Schrüfer, Johannes (2020) Annual Performance Assessment of a 50 MWe Commercial Solar Tower Plant with Improved Open Volumetric Receiver. 26th SolarPACES Conference, 28. September - 2. Oktober, Online Event. (Submitted)

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Central receiver systems with open volumetric air receiver and packed bed thermal storage are an alternative to the currently deployed salt and steam receiver plants. The air receiver technology is being tested as a complete system at the 1 MWe test and demonstration plant Solar Tower Jülich since 2009 and shows high robustness and availability. Recent developments focused on increasing the thermal receiver efficiency. Changing the receiver geometry to a cavity type and further structural improvements resulted in an efficiency increase to above 85%, as experiments and CFD simulation models show. The high dynamic flexibility could be further enhanced. A commercial reference plant with 50 MWe power level was defined for a potential location in South Africa. An LCOE analysis based on an annual performance simulation was conducted for several design and operational alternatives. Under good conditions, results show LCOE values below 90 €/MWh for the single 50 MWe standard unit. Higher power levels can be reached by multiplying such standard units, leading to further cost savings.

Item URL in elib:https://elib.dlr.de/137565/
Document Type:Conference or Workshop Item (Speech)
Additional Information:This work was supported by the German Federal Ministry for Economic Affairs and Energy on the basis of a decision by the German Bundestag, reference number 0324093B.
Title:Annual Performance Assessment of a 50 MWe Commercial Solar Tower Plant with Improved Open Volumetric Receiver
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwarzbözl, PeterPeter.Schwarzboezl (at) dlr.deUNSPECIFIED
Giuliano, StefanoStefano.Giuliano (at) dlr.deUNSPECIFIED
Noureldin, KareemKareem.Noureldin (at) dlr.deUNSPECIFIED
Doerbeck, Tilldoerbeckt (at) ka-muenchen.deUNSPECIFIED
Rossello, AinaAina.Rossello (at) kraftanlagen.comUNSPECIFIED
Schrüfer, Johannesjohannes.schruefer (at) kraftanlagen.comUNSPECIFIED
Date:1 October 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:solar power tower system, open volumetric receiver, air receiver system, annual performance simulation
Event Title:26th SolarPACES Conference
Event Location:Online Event
Event Type:international Conference
Event Dates:28. September - 2. Oktober
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Advanced Heat Transfer Media (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research
Deposited By: Schwarzbözl, Peter
Deposited On:16 Nov 2020 15:49
Last Modified:16 Nov 2020 15:49

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