Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-6701 Wissenschaftlicher Artikel Kluczka, Sven, kluczka@sij.fh-aachen.de; Eckstein, Julian, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Vaeßen, Christiane, vaessen@fh-aachen.de; Roeb, Martin, Process simulation for solar steam and dry reforming In co-operation with the German Aerospace Center, the Solar-Institut Jülich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use of solar energy. Part of the study was the modeling and simulating of a methane reformer for the production of synthesis gas, which can be operated by solar or hybrid heat sources. The reformer has been simplified in such a way that the model is accurate and enables fast calculations. The developed pseudo-homogeneous one- dimensional model can be regarded as a kind of counter-current heat exchanger and is able to incorporate a steam reforming reaction as well as a dry reforming reaction. Amsterdam Elsevier 2014 9 Energy procedia : Proceedings of the SolarPACES 2013 International Conference 49 850 859 10.1016/j.egypro.2014.03.092 weltweit https://doi.org/10.1016/j.egypro.2014.03.092 Solar-Institut Jülich OPUS4-6126 Wissenschaftlicher Artikel Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Reißel, Martin, reissel@fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Hänel, Matthias, ; Doerbeck, Till, High-temperature thermal storage system for solar tower power plants with open-volumetric air receiver simulation and energy balancing of a discretized model This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink®. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants. Amsterdam Elsevier 2014 7 Energy procedia 49 870 877 10.1016/j.egypro.2014.03.094 weltweit https://doi.org/10.1016/j.egypro.2014.03.094 Solar-Institut Jülich OPUS4-6127 Wissenschaftlicher Artikel Rau, Christoph, rau@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100%. The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated. Amsterdam Elsevier 2014 9 Energy procedia : proceedings of the SolarPACES 2013 International Conference 49 1481 1490 10.1016/j.egypro.2014.03.157 weltweit https://doi.org/10.1016/j.egypro.2014.03.157 Solar-Institut Jülich