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COMMISIONING OF A THERMAL ENERGY STORAGE SYSTEM FOR DIRECT STEAM GENERATION

Laing, Doerte and Bahl, Carsten and Fiß, Michael (2010) COMMISIONING OF A THERMAL ENERGY STORAGE SYSTEM FOR DIRECT STEAM GENERATION. In: elektronische Proceedings. SolarPACES 2010, 21. -24. Sept. 2010, Perpignan, Frankreich.

Full text not available from this repository.

Abstract

Direct steam generation is a promising option for CSP technology, for reducing the costs of solar thermal power generation. These new solar thermal power plants require adapted storage concepts, where the two-phase heat transfer fluid poses a major challenge. A three-part storage system is proposed for the two phase fluid water/steam. Concrete storage is used for the process steps involving the transfer of sensible heat – i.e. preheating of water and superheating of steam – while for the two-phase evaporation a phase change material (PCM) storage will be employed. This technology is being developed by DLR and Ed. Züblin AG. A combined storage solution with a concrete storage for superheating of steam and a PCM-storage for evaporation of water was build in 2009 in a direct steam test loop, set up at the power plant Litoral of Endesa in Carboneras, Spain. This high temperature storage system has a total capacity of ca. 1000 kWh and is the first demonstration of such a combined storage system for the two phase heat transfer fluid water/steam. Commissioning of this storage system was successfully completed in July 2010, implying first heat-up of the concrete storage to expel the excess water in the concrete, first heat-up of the PCM storage including final filling of the storage with salt and first cycling tests. Results are presented in this paper.

Document Type:Conference or Workshop Item (Paper)
Title:COMMISIONING OF A THERMAL ENERGY STORAGE SYSTEM FOR DIRECT STEAM GENERATION
Authors:
AuthorsInstitution or Email of Authors
Laing, Doertedoerte.laing@dlr.de
Bahl, CarstenEd. Züblin AG
Fiß, Michaelmichael.fiss@dlr.de
Date:September 2010
Journal or Publication Title:elektronische Proceedings
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:No
Editors:
EditorsEmail
UNSPECIFIEDCNRS
Status:Published
Keywords:thermal energy storage, direct steam generation, latent heat storage, phase change material, concrete, CSP
Event Title:SolarPACES 2010
Event Location:Perpignan, Frankreich
Event Type:international Conference
Event Dates:21. -24. Sept. 2010
Organizer:CNRS
HGF - Research field:Energy
HGF - Program:Renewable Energies
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 - Thermische Energiespeicher (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Thermal Process Technology
Deposited By: Dörte Laing
Deposited On:20 Dec 2010 13:41
Last Modified:20 Dec 2010 13:41

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