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Transient simulation of a parabolic trough collector in EBSILON®PROFESSIONAL

Pawellek, Reiner and Pulyaev, Sergej and Hirsch, Tobias and Wittmann, Michael and Seitz, Markus (2012) Transient simulation of a parabolic trough collector in EBSILON®PROFESSIONAL. In: Proceedings. SolarPACES 2012, 11.-14. Sept. 2012, Marrakesch, Marokko.

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Abstract

The transient effects during the start up process of a solar field play an important role for its overall performance. With the combination of sophisticated collector models and transient calculations in EBSILON®Professional, it will be possible to optimize the individual systems of a CSP-plant (thermal storage system, supplementary firing, collector field and power block) and to select the right control strategy for the system. In a first application, the new functionality is applied to the start-up procedure of a parabolic trough power plant with molten salt as heat transfer fluid. Results show that the process can be well represented by the model. Based on the generated reference start-up strategy improved strategies are going to be identified. Taking into account the transient effects of start up processes and fluctuations caused by weather conditions can also improve or verify the performance models nowadays used for annual return calculations. There are a number of issues to be solved in the near future to enable fully transient simulation capabilities. One constant heat transfer coefficient for the whole length of the tube could be replaced by a vector of automatically calculated coefficients, based on the Reynolds and Prandtl Number of each fluid element. The lack of PID-type controllers in EBSILON®Professional makes it for now very complicated to apply control strategies to the transient model.

Item URL in elib:https://elib.dlr.de/79063/
Document Type:Conference or Workshop Item (Paper, Poster)
Title:Transient simulation of a parabolic trough collector in EBSILON®PROFESSIONAL
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pawellek, ReinerSTEAG Energy ServicesUNSPECIFIED
Pulyaev, SergejSTEAG Energy ServicesUNSPECIFIED
Hirsch, TobiasDLR Institut für SolarforschungUNSPECIFIED
Wittmann, MichaelDLR Institut für SolarforschungUNSPECIFIED
Seitz, MarkusDLR Institut für Technische ThermodynamikUNSPECIFIED
Date:September 2012
Journal or Publication Title:Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Solar Kraftwerk Simulation Ebsilon Jahresertrag Transient
Event Title:SolarPACES 2012
Event Location:Marrakesch, Marokko
Event Type:international Conference
Event Dates:11.-14. Sept. 2012
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Linienfokussierende Systeme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Linienfokussierende Systeme
Deposited By: Hirsch, Dr.-Ing. Tobias
Deposited On:06 Dec 2012 15:07
Last Modified:12 Dec 2013 21:52

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