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The Potential of direct steam Generation in Parabolic Troughs - Results of the German Project DIVA

Eck, Markus und Benz, Nikolaus und Feldhoff, Jan-Fabian und Gilon, Yoel und Hacker, Zdenek und Müller, Thomas und Riffelmann, Klaus-Jürgen und Silmy, Kamel und Tislaric, Daniel (2008) The Potential of direct steam Generation in Parabolic Troughs - Results of the German Project DIVA. In: 14th International Symposium on Concentrated Solar Power and Chemical Energy Technologies. 14th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, 2008-03-03 - 2008-03-07, Las Vegas (USA).

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Kurzfassung

The direct steam generation (DSG) in parabolic trough collectors is a promising option to improve the mature SEGS type parabolic trough solar thermal power plant technology. According to previous studies the cost reduction of the DSG process compared to the SEGS technology is expected to be 8 to 25 %. All theses studies were more or less preliminary since they lacked detailed information on the design of collector fields, absorber tubes required for steam temperatures higher than 400°C and power blocks adapted to the specific needs of the direct steam generation. To bridge this gap, a detailed system analysis was performed within the German R+D project DIVA. Power blocks and collector fields were designed for four different capacities (5, 10, 50 and 100 MW) and different live steam parameters. The live steam temperature was varied between saturation temperature and 500°C and live steam pressures of 40, 64 and 100 bar were analyzed. The thermal efficiency of the collector operated at temperatures higher than 400°C was calculated based on latest results of SCHOTT’s high temperature selective coating development. To assess the different cases, detailed yield analysis of the overall system were performed using hourly data for the direct normal irradiation and the ambient temperature for typical years. Based on these results the levelized costs of electricity were determined for all cases and the most promising parameters were identified.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:The Potential of direct steam Generation in Parabolic Troughs - Results of the German Project DIVA
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Eck, MarkusNICHT SPEZIFIZIERT
Benz, NikolausSCHOTT Solar CSP GmbH
Feldhoff, Jan-FabianNICHT SPEZIFIZIERT
Gilon, YoelFlagsol GmbH
Hacker, ZdenekSCHOTT Solar CSP GmbH
Müller, ThomasSiemens
Riffelmann, Klaus-JürgenFlagsol GmbH
Silmy, KamelSCHOTT Solar CSP GmbH
Tislaric, DanielSiemens
Datum:März 2008
Erschienen in:14th International Symposium on Concentrated Solar Power and Chemical Energy Technologies
Referierte Publikation:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Direct steam generation, parabolic trough collector, absorber tubes, solar thermal power plant, system analysis
Veranstaltungstitel:14th International Symposium on Concentrated Solar Power and Chemical Energy Technologies
Veranstaltungsort:Las Vegas (USA)
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2008-03-03 - 2008-03-07
Veranstalter :SolarPACES
HGF - Forschungsbereich:Energie
HGF - Programm:Erneuerbare Energie
HGF - Programmthema:E SF - Solarforschung (alt)
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SF - Solarforschung
DLR - Teilgebiet (Projekt, Vorhaben):E - Applikationsentwicklung (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Technische Thermodynamik > Solarforschung
Hinterlegt von: Michael Wittmann
Hinterlegt am:14 Jan 2009
Letzte Änderung:12 Dez 2013 20:35

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