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Showing 1 to 20 of 128 for “"SOFC"”.
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Investigation and Improvement of SofC Composite Cathodes
… performance, and long term stability of SOFC composite cathodes prepared by infiltration methods. The majority of the work that follows aims to improve the understanding of the processes contributing to cathode deactivation and to propose strategies to lessen the extent of this …
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Verdampfung von Werkstoffen beim Betrieb von Hochtemperaturbrennstoffzellen (SOFC)
… and versatility planar solid oxide fuel cells (SOFCs) offer a lot of advantages compared to other fuel cell systems and combustion engines.One of the main problems concerning the development of state of the art planar SOFCs are the occurrence of ageing effects in long term application. To a …
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Untersuchungen zum Einsatz neuer Werkstoffe für SOFC-Anwendungen
Fuel cells based on solid oxides (‘SOFC’) are excellent alternative devices for power generation, when they are operated at high temperature, e.g. above 600°C. Having only fixed parts for the power generating part of the device is only one advantage of the fuel cell. Due to their unique design, …
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Layered perovskites as cathode materials for IT-SOFC
… region. The maximum power density of single-cell SOFCs fabricated with the La₀.₉Ln₀.₉Sr₀.₂CuO₄ (Ln= Sm & Gd) cathodes, La₀.₉Sr₀.₁Ga₀.₈Mg₀.₂O₃-δ (LSGM-9182) electrolyte, and Ni–Ce₀.₉Gd₀.₁O₁.₉₅ cermet anode exhibit 720 and 824 mWcm-² at 800 °C respectively. The phase pure T* Nd₁.₃₂Ce₀.27Sr₀.₄₁CuO₄-δ …
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Tailoring Superconductor and SOFC Structures for Power Applications
… (HTS) and solid oxide fuel cells (SOFCs) both offer the possibility for dramatic improvements in efficiency in power applications such as generation, transmission and use of electrical energy. However, production costs and energy losses prohibit widespread adoption of these …
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Sintering of Co2MnO4 spinel for protective coatings in SOFC
Protective coatings are often deposited on SOFC interconnectors to avoid poisoning of cathode from chromium species that evaporate from stainless steel interconnects or supports. Co2MnO4 spinel compounds are usually considered as the main constituent of protection barriers. Nevertheless, such …
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Dynamic modelling of SOFC marine power systems and shipboard applications
… types of fuel cells, the Solid Oxide Fuel Cell (SOFC) tops others in terms of energy conversion efficiency as it can be fed with both hydrogen rich fuels and traditional fossil fuels after being chemically reformed. These features make it most promising to meet the large power demands of seagoing …
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Untersuchungen zu den Eigenschaften der Anode der Festoxid-Brennstoffzelle (SOFC)
… of anodes of the solid oxide fuel cell (SOFC). A model is suggested, which describes the impedance spectra of symmetrical anode cells. According to this, the series resistance in the spectra is caused by the resistance of the electrolyte (YSZ), ohmic parts of the anodes, which are …
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Fabrication and electrochemical performance analysis of nanocomposite for low-temperature SOFC
Low-temperature solid oxide fuel cell (LTSOFC) offers a promising new energy conversion technology, which converts chemical energy into electrical energy. The benefits of LTSOFC technology include a low operating temperature, relatively high energy conversion efficiency, and potentially low costs. …
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Bestimmung chemischer Aktivitäten in Werkstoffen von Hochtemperaturbrennstoffzellen (SOFC) durch massenspektrometrische Verdampfungsuntersuchungen
… electrolyte for the solid oxide fuel cells (SOFC). The stability of the used materials has to be guaranteed at the operating temperatures up to 800° C and under both reducing and oxidizing condition. Knowledge on the vaporization, the thermochemical data, and the phase diagrams involving the …
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Computational and empirical thermal modelling of a proposed SOFC stack housing design
Solid oxide fuel cells (SOFC) generate electricity cleanly, efficiently and quietly. There has been much effort in commercialising planar and large tubular SOFCs in the past two decades. Some research has involved modelling the mass, thermal and electrical energy flows in SOFC stack designs. Due to …
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Mathematical Modeling of An Anode-Supported Micro-Tubular Sofc Powered by Ammonia
… is presented for anode-supported micro-tubular SOFCs with ammonia as the fuel. This two-dimensional (2D) mathematical model consists of a set of equations that describe the conservation of heat, mass, momentum and charge, which are solved simultaneously by COMSOL MULTIPHYSICS 4.1a. We …
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Configuration and Operating Condition Design Analysis of SOFC Systems for Building Applications
… of the energy storage device in the modeling of SOFC cogeneration systems, the environmental assessment of the system such as the air pollutant emission performance, the lifecycle assessment (LCA) of SOFC systems from manufacturing stage through the abolition stage and the faster execution time …
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Untersuchungen zur oxidationsbedingten Lebensdauer von Chromstählen für die Anwendung in der Hochtemperaturbrennstoffzelle (SOFC)
… should be covered by a solid oxide fuel cell (SOFC) used as an additional energy supply (auxiliary power unit). The application of a SOFC with about 5 kW power in cars requires small size, low weight and an economic fabrication. To achieve this goal the interconnector and the metallic anode …
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Νέα υλικά ανόδου κελιών καυσίμου στερεού ηλεκτρολύτη (sofc) - παρασκευή, χαρακτηρισμός και έλεγχος ιδιοτήτων
… των κελιών καυσίμου στερεού ηλεκτρολύτη, SOFCs (Solid Oxide Fuel Cells). Ένα από τα μειονεκτήματα που εμφανίζονται κατά την μακρόχρονη λειτουργία ενός ‘state of the art’ κελιού καυσίμου αποτελούμενο από Ni/8YSZ (8 mol% Y2O3 stabilized ZrO2) κεραμομεταλλικό (άνοδος) - 8YSZ (ηλεκτρολύτης) - …
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Semicelle SOFC: studio e produzione di elettroliti con processi a basso impatto ambientale
Le celle a combustibile ad ossido solido (SOFC) sono dei sistemi elettrochimici in grado di trasformare direttamente l’energia chimica di un combustibile (generalmente H2) e di un comburente (O2) in energia elettrica, senza l’intervento intermedio di un ciclo termico. Le SOFCs rappresentano un …
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