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Retrofitting of Existing Parabolic Trough Collector Power Plants with Molten Salt Tower Systems

Rendón, Carlos and Dieckmann, Simon and Weidle, Mathias and Dersch, Jürgen and Boura, Cristiano and Polklas, Thomas and Kuschel, Marcus and Herrmann, Ulf (2018) Retrofitting of Existing Parabolic Trough Collector Power Plants with Molten Salt Tower Systems. In: AIP Conference Proceedings, 2033 (1), 030014. AIP Publishing. SolarPACES Conference 2017, 26.-29. September 2017, Santiago, Chile. DOI: 10.1063/1.5067030

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Official URL: https://aip.scitation.org/doi/abs/10.1063/1.5067030


Existing thermal oil based parabolic trough collector (PTC) power plants have been commercially deployed since 2008. Parabolic trough technology dominates by ca. 90 % the global market of all operational commercial concentrated solar power (CSP) plants. Worldwide over 32 % of these PTC power plants have an indirect salt thermal storage system that enables night operation [1, 2]. Since existing parabolic trough power plants with thermal oil are limited regarding their maximum operating temperature, the addition and integration with a molten salt tower systems (MSTS) could be an attractive option to increase the temperature level of the thermal storage and steam cycle and thus the overall efficiency of the plant. This paper describes the conception, investigation and techno-economic evaluation for retrofitting an existing Andasol type parabolic trough power plant. The most promising out of five coupling configurations has been analyzed and evaluated for three different retrofitting concepts using greenius and EBSILON®Professional simulation tools. The analysis shows that retrofitting concepts based on the addition of a MSTS are only economically attractive, if the capital expenditure for the power block modification does not exceed 440 $/kW. The retrofitting of existing PTCs with a MSTS is economically unviable.

Item URL in elib:https://elib.dlr.de/125231/
Document Type:Conference or Workshop Item (Poster)
Title:Retrofitting of Existing Parabolic Trough Collector Power Plants with Molten Salt Tower Systems
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rendón, CarlosSolarinstitut JülichUNSPECIFIED
Dieckmann, Simonsimon.dieckmann (at) dlr.dehttps://orcid.org/0000-0002-9504-8626
Weidle, Mathiasinstitut für solarforschungUNSPECIFIED
Dersch, Jürgenjuergen.dersch (at) dlr.dehttps://orcid.org/0000-0003-0346-1235
Boura, CristianosijUNSPECIFIED
Polklas, Thomasthomas.polklas (at) man.euUNSPECIFIED
Herrmann, Ulfsolar-institut jülichUNSPECIFIED
Date:8 November 2018
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1063/1.5067030
Page Range:030014
Publisher:AIP Publishing
Series Name:AIP Conference Proceedings
Keywords:CSP, Retrofit, Trough, Tower, Hybrid
Event Title:SolarPACES Conference 2017
Event Location:Santiago, Chile
Event Type:international Conference
Event Dates:26.-29. September 2017
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Advanced Heat Transfer Media
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Line Focus Systems
Deposited By: Dieckmann, Simon
Deposited On:17 Dec 2018 16:09
Last Modified:01 Dec 2019 03:00

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