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Steam Temperature Stability in a Direct Steam Generation Solar Power Plant

Birnbaum, Jürgen and Feldhoff, Jan Fabian and Fichtner, Markus and Hirsch, Tobias and Jöcker, Markus and Pitz-Paal, Robert and Zimmermann, Gerhard (2009) Steam Temperature Stability in a Direct Steam Generation Solar Power Plant. In: Proceedings of the SolarPACES 2009 Conference. SolarPACES 2009, 15.-18. September 2009, Berlin, Deutschland.

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Abstract

Direct steam generation (DSG) is one alternative to the current oil-based parabolic trough solar thermal power plants. Within the German research project ITES, the dynamic behavior of a DSG collector field and the interactions with the conventional power block are assessed in detail. A transient solar field model developed by DLR is used to simulate the steam temperature behavior. Artificial irradiance disturbances as well as real irradiance data are used as input to the system. The resulting main steam temperature gradients are then analyzed by Siemens considering the standards for steam turbines. This paper presents the transient simulation results of the steam temperature as well as the corresponding results of the steam turbine analysis. It is found that the occurring temperature gradients are challenging for a safe turbine operation, if a conservative control system is used. Therefore, the use of an additional thermal inertia to stabilize the steam temperature is suggested. Its impact is also analyzed and discussed in this paper.

Item URL in elib:https://elib.dlr.de/60442/
Document Type:Conference or Workshop Item (Paper)
Title:Steam Temperature Stability in a Direct Steam Generation Solar Power Plant
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Birnbaum, JürgenSiemensUNSPECIFIED
Feldhoff, Jan Fabianjan.feldhoff (at) dlr.deUNSPECIFIED
Fichtner, MarkusSiemensUNSPECIFIED
Hirsch, Tobiastobias.hirsch (at) dlr.deUNSPECIFIED
Jöcker, MarkusSiemensUNSPECIFIED
Pitz-Paal, RobertDLRUNSPECIFIED
Zimmermann, GerhardSiemensUNSPECIFIED
Date:2009
Journal or Publication Title:Proceedings of the SolarPACES 2009 Conference
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:steam turbine solar thermal power plant parabolic trough direct steam generation transient simulation
Event Title:SolarPACES 2009
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Dates:15.-18. September 2009
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Applikationsentwicklung (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Solar Research
Deposited By: Feldhoff, Dr.-Ing. Jan Fabian
Deposited On:03 Nov 2009 14:58
Last Modified:12 Dec 2013 20:44

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