Seitz, Markus und Hübner, Stefan und Johnson, Maike (2016) Detailed partial load investigation of a thermal energy storage concept for solar thermal power plants with direct steam generation. AIP Conference Proceedings (1734). American Institute of Physics (AIP). doi: 10.1063/1.4949140. ISSN 0094-243X.
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Offizielle URL: http://dx.doi.org/10.1063/1.4949140
Kurzfassung
Direct steam generation enables the implementation of a higher steam temperature for parabolic trough concentrated solar power plants. This leads to much better cycle efficiencies and lower electricity generating costs. For a flexible and more economic operation of such a power plant, it is necessary to develop thermal energy storage Systems for the extension of the production time of the power plant. In the case of steam as the heat transfer fluid, it is important to use a storage material that uses latent heat for the storage process. This leads to a minimum of exergy losses during the storage process. In the case of a concentrating solar power plant, superheated steam is needed during the discharging process. This steam cannot be superheated by the latent heat storage system. Therefore, a sensible molten salt storage system is used for this task. In contrast to the state-of-the-art thermal energy storages within the concentrating solar power area of application, a storage system for a direct steam generation plant consists of a latent and a sensible storage part. Thus far, no partial load behaviors of sensible and latent heat storage systems have been analyzed in detail. In this work, an optimized fin structure was developed in order to minimize the costs of the latent heat storage. A complete system simulation of the power plant process, including the solar field, power block and sensible and latent heat energy storage calculates the interaction between the solar field, the power block and the thermal energy storage system.
elib-URL des Eintrags: | https://elib.dlr.de/113331/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Detailed partial load investigation of a thermal energy storage concept for solar thermal power plants with direct steam generation | ||||||||||||||||
Autoren: |
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Datum: | 2016 | ||||||||||||||||
Erschienen in: | AIP Conference Proceedings | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
DOI: | 10.1063/1.4949140 | ||||||||||||||||
Verlag: | American Institute of Physics (AIP) | ||||||||||||||||
ISSN: | 0094-243X | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | latent heat energy storage, direct steam generation | ||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||
HGF - Programm: | Speicher und vernetzte Infrastrukturen | ||||||||||||||||
HGF - Programmthema: | Thermische Energiespeicher | ||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||
DLR - Forschungsgebiet: | E SP - Energiespeicher | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Thermochemische Prozesse (Speicher) (alt) | ||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Thermische Prozesstechnik | ||||||||||||||||
Hinterlegt von: | Johnson, Maike | ||||||||||||||||
Hinterlegt am: | 20 Jul 2017 12:56 | ||||||||||||||||
Letzte Änderung: | 06 Nov 2023 08:53 |
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