Tracking the Onset of Damage Mechanism in Ceria-based Solid Oxide Fuel Cells under Simulated Operating Conditions

2006 ◽  
Vol 34 (3) ◽  
pp. 12707 ◽  
Author(s):  
DMR Mitchell ◽  
K Sato ◽  
H Omura ◽  
T Hashida ◽  
K Yashiro ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Damage Mechanism ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel

Long-term and Redox Stability of Electrolyte Supported Solid Oxide Fuel Cells Under Various Operating Conditions

2019 ◽  
Vol 7 (1) ◽  
pp. 381-388 ◽  
Author(s):  
Sindy Mosch ◽  
Nikolai Trofimenko ◽  
Mihail Kusnezoff ◽  
Thomas Betz ◽  
Marco Kellner
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Redox Stability

scholarly journals Operation of a Solid Oxide Fuel Cell Based Power System with Ammonia as a Fuel: Experimental Test and System Design

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6173
Author(s):  
Linda Barelli ◽  
Gianni Bidini ◽  
Giovanni Cinti
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
System Design ◽  
Thermodynamic Model ◽  
Renewable Energy Sources ◽  
International Energy Agency ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Wide Range

Ammonia has strong potentialities as sustainable fuel for energy applications. NH3 is carbon free and can be synthetized from renewable energy sources (RES). In Solid Oxide Fuel Cells, NH3 reacts electrochemically thereby avoiding the production of typical combustion pollutants such as NOx. In this study, an ammonia-fueled solid oxide fuel cells (SOFC) system design is proposed and a thermodynamic model is developed to evaluate its performance. A SOFC short stack was operated with NH3 in a wide range of conditions. Experimental results are implemented in the thermodynamic model. Electrical efficiency of 52.1% based on ammonia Lower Heating Value is calculated at a net power density of 0.36 W cmFC−2. The operating conditions of the after burner and of the ammonia decomposition reactor are studied by varying the values of specific parameters. The levelized cost of energy of 0.221 $ kWh−1 was evaluated, as introduced by the International Energy Agency, for a system that operates at nominal conditions and at a reference power output of 100 kW. This supports the feasibility of ammonia-fueled SOFC systems with reference to the carbon free energy market, specifically considering the potential development of green ammonia production.

scholarly journals Mechanical Damage Evaluation of Solid Oxide Fuel Cells under Simulated Operating Conditions

2005 ◽  
Vol 113 (1320) ◽  
pp. 562-564 ◽  
Author(s):  
Kazuhisa SATO ◽  
Toshiyuki HASHIDA ◽  
Keiji YASHIRO ◽  
Hiroo YUGAMI ◽  
Tatsuya KAWADA ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Mechanical Damage ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Damage Evaluation ◽  
Oxide Fuel

Improving sulfur tolerance of Ni-YSZ anodes of solid oxide fuel cells by optimization of microstructure and operating conditions

2018 ◽  
Vol 43 (24) ◽  
pp. 11202-11213 ◽  
Author(s):  
Muhammad Taqi Mehran ◽  
Muhammad Zubair Khan ◽  
Seung-Bok Lee ◽  
Tak-Hyoung Lim ◽  
Sam Park ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Sulfur Tolerance

Quantification of the Improvement of Performance of Solid Oxide Fuel Cell Using Chiller-Based Fuel Recirculation

2019 ◽  
Vol 142 (2) ◽  
Author(s):  
Jakub Kupecki ◽  
Konrad Motylinski ◽  
Lukasz Szablowski ◽  
Agnieszka Zurawska ◽  
Yevgeniy Naumovich ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Power Systems ◽  
Solid Oxide Fuel Cells ◽  
Complete Removal ◽  
External Source ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Processing Unit ◽  
Oxide Fuel ◽  
Hydrogen Molecules

Abstract Solid oxide fuel cells operate at high temperature, typically in the range 650–850 °C, utilizing between 50% and 75% of fuel. The remaining fuel can be either burned in a post-combustor located downstream of the solid oxide fuel cells (SOFC) stack or partially recycled. Several of the SOFC-based power systems include recirculation which is used to supply the steam to the fuel processing unit based on steam reforming. In such a system, the recycled stream makes it possible to eliminate the supply of water from the external source. In the same time, recirculation aids in increasing the overall fuel utilization in the power system. As a result the efficiency increases by 5–12% points. The electrochemical reaction in SOFC generates a substantial amount of water by combining the hydrogen molecules with oxygen extracted from the air entering the cathodic compartments. The recycled stream contains water vapor which is circulated in the recycled loop. In the current analysis, the system for recirculation of the anodic off-gas with complete removal of water was proposed and studied. Performance of a planar cell operated with different rates of recycling was studied using the experimental setup with chiller-based recirculation. Quantification of the improvement of the efficiency was based on the analysis of the increase of voltage of cell operated at a given current density. The experimental study demonstrated that the performance of a stand-alone SOFC can be increased by 18–31%. Additionally, the numerical model was proposed to determine the performance in other operating conditions.

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