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Thermal Energy Storage for Direct Steam Generation

Laing, Doerte and Bahl, Carsten and Bauer, Thomas and Lehmann, Dorothea and Steinmann, Wolf-Dieter (2010) Thermal Energy Storage for Direct Steam Generation. Solar Energy. ELSEVIER.

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Abstract

Parabolic trough power plants with direct steam generation are a promising option for future cost reduction in comparison to the SEGS type technology. These new solar thermal power plants require innovative storage concepts, where the two phase heat transfer fluid poses a major challenge. A three-part storage system is proposed where a phase change material (PCM) storage will be deployed for the two-phase evaporation, while concrete storage will be used for storing sensible heat, i.e. for preheating of water and superheating of steam. A storage system with a total storage capacity of approx. 1 MWh is described, combining a PCM module and a concrete module. The storage modules have been constructed for testing in a DSG-test facility specially erected at a conventional power plant of Endesa in Carboneras (Spain). Commissioning of the storage system started in May 2010; testing under real steam conditions around 100 bar will begin in August 2010.

Document Type:Article
Title:Thermal Energy Storage for Direct Steam Generation
Authors:
AuthorsInstitution or Email of Authors
Laing, Doertedoerte.laing@dlr.de
Bahl, Carstencarsten.bahl@zueblin.de
Bauer, Thomasthomas.bauer@dlr.de
Lehmann, Dorotheadorothea.lehmann@dlr.de
Steinmann, Wolf-Dieterwolf.steinmann@dlr.de
Date:October 2010
Journal or Publication Title:Solar Energy
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:ELSEVIER
Status:Published
Keywords:thermal energy storage, direct steam generation, latent heat storage, phase change material, concrete, parabolic trough power plant
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Thermal Process Technology
Deposited By: Dörte Laing
Deposited On:10 Jan 2011 16:59
Last Modified:07 Feb 2013 20:44

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