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Performance analysis of operational strategies for monolithic receiver-reactor arrays in solar thermochemical hydrogen production plants.

Brendelberger, Stefan and Rosenstiel, Andreas and Lopez Roman, Anton and Prieto Rios, Cristina and Sattler, Christian (2020) Performance analysis of operational strategies for monolithic receiver-reactor arrays in solar thermochemical hydrogen production plants. International Journal of Hydrogen Energy, 45 (49), pp. 26104-26116. Elsevier. ISSN 0360-3199.

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Abstract

Solar thermochemical water splitting was successfully demonstrated with monolithic receiver-reactors in field at 50 kW scale. Since monolithic receiver-reactors are limited in size, several of the reactors will have to be combined in receiver-reactor arrays for large-scale plants. In this study, the yearly performance of solar thermochemical plants for hydrogen production implementing receiver-reactor arrays is investigated. Thereto, a transient receiver-reactor model is used in combination with realistic hourly flux profiles from dedicated MW high temperature solar concentrator systems. The batched operation of receiver-reactors leads to particular requirements of the array. Therefore, an array efficiency is introduced and different control strategies for the solar field are analyzed for performance optimization. Advanced strategies have the potential to substantially (~ 46%) improve the overall performance compared to the base case. Further design and operational optimization approaches are discussed, which allow approaching the theoretical array performance limit.

Item URL in elib:https://elib.dlr.de/137912/
Document Type:Article
Title:Performance analysis of operational strategies for monolithic receiver-reactor arrays in solar thermochemical hydrogen production plants.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brendelberger, StefanStefan.Brendelberger (at) dlr.deUNSPECIFIED
Rosenstiel, AndreasAndreas.Rosenstiel (at) dlr.deUNSPECIFIED
Lopez Roman, AntonUNSPECIFIEDUNSPECIFIED
Prieto Rios, CristinaUNSPECIFIEDUNSPECIFIED
Sattler, ChristianChristian.Sattler (at) dlr.dehttps://orcid.org/0000-0002-4314-1124
Date:2020
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:45
Page Range:pp. 26104-26116
Publisher:Elsevier
ISSN:0360-3199
Status:Published
Keywords:receiver-reactor, thermochemical cycle, snygas, operational strategy, solar fuels
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Solar Fuels
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Solar Fuels (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solar Chemical Engineering
Deposited By: Roeb, Dr.rer.nat. Martin
Deposited On:23 Nov 2020 12:22
Last Modified:23 Nov 2020 12:22

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