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.
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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|
|Journal or Publication Title:||elektronische Proceedings|
|In Open Access:||Yes|
|In ISI Web of Science:||No|
|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|
|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)|
|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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