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Numerical model to design a thermochemical storage system for solar power plant

Tescari, Stefania and Lantin, Gunnar and Lange, Matthias and Breuer, Stefan and Agrafiotis, Christos and Roeb, Martin and Sattler, Christian (2015) Numerical model to design a thermochemical storage system for solar power plant. International Conference on Applied Energy, 28.-31. Mär. 2015, Abu Dhabi, Vereinigte Arabische Emirate.

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Storage of the heat is one of the key points in the development of concentrated solar power plants. Although at an early research stage, thermochemical storage offers several advantages, as for example high energy density, long term storage or high storage temperature. A new concept, in which the reactive material is shaped in a structured, monolithic shape, through which air can flow, was lately proposed. This new concept, exhibiting high surface area and good heat transfer properties, was successfully tested in lab-scale. The next step is the installation of a prototype reactor in an existing solar facility. The definition of the design of such a reactor, as well as the nominal operating conditions, is made through a CFD numerical model, developed and described in this study. A typical charge and discharge cycle is analyzed and used to define the operating conditions. Through simulations, the optimal design and shape of the reactor (height to length ratio, distributor shape, etc.) is defined. The optimization method, defined for this process, shows the importance of the flow uniformity on the reactor performances. The pressure drop threshold, needed to obtain a uniform flow, is found and the reactor shape is defined accordingly.

Item URL in elib:https://elib.dlr.de/100942/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical model to design a thermochemical storage system for solar power plant
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Tescari, Stefaniastefania.tescari (at) dlr.deUNSPECIFIED
Lange, Matthiasmatthias.lange (at) dlr.deUNSPECIFIED
Breuer, Stefanstefan.breuer (at) dlr.deUNSPECIFIED
Agrafiotis, Christoschristos.agrafiotis (at) dlr.deUNSPECIFIED
Roeb, MartinMartin.roeb (at) dlr.deUNSPECIFIED
Sattler, Christianchristian.sattler (at) dlr.deUNSPECIFIED
Date:28 March 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Thermochemical heat storage, honeycomb, solar power plant, reactor design
Event Title:International Conference on Applied Energy
Event Location:Abu Dhabi, Vereinigte Arabische Emirate
Event Type:international Conference
Event Dates:28.-31. Mär. 2015
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Solar Fuels
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solar Fuels (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:17 Dec 2015 14:03
Last Modified:20 Jun 2021 15:47

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