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Techno-Economic Optimization of Molten Salt Solar Tower Plants

Puppe, Michael and Giuliano, Stefano and Frantz, Cathy and Flesch, Robert and Schumacher, Ralph and Ibraheem, Wagdi and Schmalz, Stefan and Waldmann, Dr., Barbara and Guder, Christoph and Peter, Dennis and Schwager, Christian and Teixeira Boura, Cristiano and Alexopoulos, Spiros and Spiegel, Michael and Wortmann, Jürgen and Hinrichs, Matthias and Engelhard, Manfred and Aust, Michael and Hattendorf, Heike (2018) Techno-Economic Optimization of Molten Salt Solar Tower Plants. In: 23rd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2017, 2033 (1). SolarPACES 2017, 2017-09-26 - 2017-09-29, Santiage de Chile. doi: 10.1063/1.5067069. ISSN 0094-243X.

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Official URL: https://aip.scitation.org/doi/abs/10.1063/1.5067069

Abstract

In this paper the results of a techno-economic analysis of improved and optimized molten salt solar tower plants (MSSTP plants) are presented. The potential improvements that were analyzed include different receiver designs, different designs of the HTF-system and plant control, increased molten salt temperatures (up to 640°C) and multi-tower systems. Detailed technological and economic models of the solar field, solar receiver and high temperature fluid system (HTF-system) were developed and used to find potential improvements compared to a reference plant based on Solar Two technology and up-to-date cost estimations. The annual yield model calculates the annual outputs and the LCOE of all variants. An improved external tubular receiver and improved HTF-system achieves a significant decrease of LCOE compared to the reference. This is caused by lower receiver cost as well as improvements of the HTF-system and plant operation strategy, significantly reducing the plant own consumption. A novel star receiver shows potential for further cost decrease. The cavity receiver concepts result in higher LCOE due to their high investment cost, despite achieving higher efficiencies. Increased molten salt temperatures seem possible with an adapted, closed loop HTF-system and achieve comparable results to the original improved system (with 565°C) under the given boundary conditions. In this analysis all multi tower systems show lower economic viability compared to single tower systems, caused by high additional cost for piping connections and higher cost of the receivers.

Item URL in elib:https://elib.dlr.de/118002/
Document Type:Conference or Workshop Item (Speech)
Title:Techno-Economic Optimization of Molten Salt Solar Tower Plants
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Puppe, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giuliano, StefanoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Frantz, CathyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Flesch, RobertUNSPECIFIEDhttps://orcid.org/0000-0003-2725-8039UNSPECIFIED
Schumacher, RalphBilfinger Piping Technologies GmbH, Europaallee 1, 46047 Oberhausen, GermanyUNSPECIFIEDUNSPECIFIED
Ibraheem, WagdiBilfinger Piping Technologies GmbH, Europaallee 1, 46047 Oberhausen, GermanyUNSPECIFIEDUNSPECIFIED
Schmalz, StefanBBS GmbH – Babcock Borsig Steinmüller GmbHUNSPECIFIEDUNSPECIFIED
Waldmann, Dr., BarbaraBBS GmbH – Babcock Borsig Steinmüller GmbHUNSPECIFIEDUNSPECIFIED
Guder, ChristophSTEAG Energy Services GmbH, Rüttenscheider Str. 1-3, 45128 Essen, GermanyUNSPECIFIEDUNSPECIFIED
Peter, DennisSTEAG Energy Services GmbH, Rüttenscheider Str. 1-3, 45128 Essen, GermanyUNSPECIFIEDUNSPECIFIED
Schwager, ChristianAachen University of Applied Sciences Solar-Institute Jülich, Heinrich-Mußmann Str. 5, 52428 Jülich, GermanyUNSPECIFIEDUNSPECIFIED
Teixeira Boura, CristianoAachen University of Applied Sciences Solar-Institute Jülich, Heinrich-Mußmann Str. 5, 52428 Jülich, GermanyUNSPECIFIEDUNSPECIFIED
Alexopoulos, SpirosUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spiegel, MichaelSalzgitter Mannesmann Forschung GmbH, Ehinger Strasse 200, 47259 Duisburg, GermanyUNSPECIFIEDUNSPECIFIED
Wortmann, JürgenBASF SE, 67056 Ludwigshafen am Rhein, GermanyUNSPECIFIEDUNSPECIFIED
Hinrichs, MatthiasBASF SE, 67056 Ludwigshafen am Rhein, GermanyUNSPECIFIEDUNSPECIFIED
Engelhard, ManfredM + W Group GmbH, Lotterbergstraße 30, 70499 Stuttgart, GermanyUNSPECIFIEDUNSPECIFIED
Aust, MichaelM + W Group GmbH, Lotterbergstraße 30, 70499 Stuttgart, GermanyUNSPECIFIEDUNSPECIFIED
Hattendorf, HeikeVDM Metals GmbH, Plettenberger Straße 2, 58791 Werdohl, GermanyUNSPECIFIEDUNSPECIFIED
Date:8 November 2018
Journal or Publication Title:23rd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:2033
DOI:10.1063/1.5067069
ISSN:0094-243X
Status:Published
Keywords:Receiver, HTF System model, Multi-Tower, LCOE
Event Title:SolarPACES 2017
Event Location:Santiage de Chile
Event Type:international Conference
Event Start Date:26 September 2017
Event End Date: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 (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Solartowersystems
Deposited By: Uhlig, Tamara
Deposited On:09 Jan 2018 14:59
Last Modified:24 Apr 2024 20:22

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