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A Specific Feature of CSP – Increasing Dispatchability and Efficiency with Thermal Energy Storage

Breidenbach, Nils und Tamme, Rainer (2011) A Specific Feature of CSP – Increasing Dispatchability and Efficiency with Thermal Energy Storage. ZeroEmission 2011, Rom, Italien.

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The option to integrate cost effective storage systems directly into the plant environment represents a significant advantage of solar thermal power plants against other renewable energy technologies like PV or wind. Thermal energy storage systems store excess thermal heat collected by the solar field. Storage systems, alone or in combination with some fossil fuel backup, keep the plant running under full-load conditions. Improvements on operational flexibility and energy dispatchability by thermal storage and hybridisation are identified as key technology objectives for R&D development. The capability of storing high-temperature thermal energy leads to economically competitive design options, since only the solar part of the plant has to be oversized. This solar thermal power plant feature is tremendously relevant, since penetration of solar energy into the bulk electricity market is possible only when substitution of intermediate-load power plants of about 4,000-5,000 hours/year is achieved. The presentation covers the commercially available two-tank molten salt storage concept as well as alternative approaches for various plant architectures e.g. direct steam generation and air cooled receivers. Most of these approaches are still in the pilot or demonstration phase and need to be validated and proven for up-scaling to commercial scale. Finally current research topics are addressed covering heat transfer fluids and storage materials with superior thermo-physical properties as well as new concepts for improved heat transfer and storage design.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:A Specific Feature of CSP – Increasing Dispatchability and Efficiency with Thermal Energy Storage
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Datum:September 2011
In Open Access:Nein
In ISI Web of Science:Nein
Stichwörter:thermal energy storage, csp
Veranstaltungstitel:ZeroEmission 2011
Veranstaltungsort:Rom, Italien
Veranstaltungsart:internationale Konferenz
HGF - Forschungsbereich:Energie
HGF - Programm:Rationelle Energieumwandlung (alt)
HGF - Programmthema:E EV - Energieverfahrenstechnik (alt)
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E EV - Energieverfahrenstechnik
DLR - Teilgebiet (Projekt, Vorhaben):E - Thermochemische Prozesse (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Technische Thermodynamik > Thermische Prozesstechnik
Hinterlegt von: Breidenbach, Nils
Hinterlegt am:08 Nov 2011 14:02
Letzte Änderung:12 Dez 2013 21:23

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