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Improving Powder Bed Properties for Thermochemical Storage by Adding Nanoparticles

Roßkopf, C. and Haas, M. and Faik, A. and Linder, M. and Wörner, A. (2014) Improving Powder Bed Properties for Thermochemical Storage by Adding Nanoparticles. Energy Conversion and Management, 86, pp. 93-98. Elsevier. DOI: 10.1016/j.enconman.2014.05.017 ISSN 0196-8904

Full text not available from this repository.

Abstract

Thermochemical storage offers interesting potential to store thermal energy, especially in the field of industrial waste heat utilization or for concentrated solar power (CSP) plants. However, at present the development of thermochemical storage technology is in its initial stage with investigations mainly on material aspects or small lab-scale systems. With regard to its thermodynamics and kinetics, it has been shown that the CaO/Ca(OH) 2 reaction system is suitable for thermochemical heat storage at a temperature range of 400–600 C. However, the behaviour in a small lab-scale system was mainly dominated by heat and mass transfer limitations originating from the small particle size and changes in the bulk properties. It is shown that by the addition of small amounts of additives like nano- particles of SiO 2 (Aerosil ), the bulk properties can be stabilized and consequently the cycling stability ensured. In addition, channelling effects can be minimized resulting in a more homogeneous flow through the reaction bed improving the overall reaction behaviour of the thermochemical storage.

Item URL in elib:https://elib.dlr.de/85537/
Document Type:Article
Title:Improving Powder Bed Properties for Thermochemical Storage by Adding Nanoparticles
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Roßkopf, C.DLRUNSPECIFIED
Haas, M.DLRUNSPECIFIED
Faik, A.CICenergiguneUNSPECIFIED
Linder, M.DLRUNSPECIFIED
Wörner, A.DLRUNSPECIFIED
Date:October 2014
Journal or Publication Title:Energy Conversion and Management
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:86
DOI :10.1016/j.enconman.2014.05.017
Page Range:pp. 93-98
Publisher:Elsevier
ISSN:0196-8904
Status:Published
Keywords:Thermochemical sotrage, gas-solid reaction, nanoparticles, agglomeration
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Energy-efficient Processes (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Roßkopf, Christian
Deposited On:08 Jul 2014 16:31
Last Modified:06 Sep 2019 15:20

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