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  • Christian Schwager (5)
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Techno-economic optimization of molten salt solar tower plants (2018)
Michael Puppe ; Stefano Giuliano ; Cathy Frantz ; Ralf Uhlig ; Ralph Schumacher ; Wagdi Ibraheem ; Stefan Schmalz ; Barbara Waldmann ; Christoph Guder ; Dennis Peter ; Christian Schwager ; Cristiano Teixeira Boura ; Spiros Alexopoulos ; Michael Spiegel ; Jürgen Wortmann ; Matthias Hinrichs ; Manfred Engelhard ; Michael Aust
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. REFERENCES
Basic Engineering of a High Performance Molten Salt Tower Receiver System (2020)
Cathy Frantz ; Matthias Binder ; Konrad Busch ; Miriam Ebert ; Andreas Heinrich ; Nadine Kaczmarkiewicz ; Bärbel Schlögl-Knothe ; Tobias Kunze ; Christian Schuhbauer ; Markus Stetka ; Christian Schwager ; Michael Spiegel ; Cristiano Teixeira Boura ; Thomas Bauer ; Alexander Bonk ; Stefan Eisen ; Bernhard Funck
Novel concept for indirect solar-heated methane reforming (2019)
Zahra Mahdi ; Carlos Rendón ; Christian Schwager ; Cristiano Teixeira Boura ; Ulf Herrmann
Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming (2020)
Carlos Rendon ; Christian Schwager ; Mona Ghiasi ; Pascal Schmitz ; Fakhri Bohang ; Ricardo Alexander Chico Caminos ; Cristiano Teixeira Boura ; Ulf Herrmann
Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation (2019)
Christian Schwager ; Cristiano J. Teixeira Boura ; Robert Flesch ; Spiros Alexopoulos ; Ulf Herrmann
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