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Your search keyword '"Ćwieka, Karol"' showing total 17 results
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17 results on '"Ćwieka, Karol"'

16. The investigation of cathode layer of Molten Carbonate Fuel Cell manufactured by using printing techniques.

Author

Milewski, Jarosław, Sieńko, Arkadiusz, Wejrzanowski, Tomasz, Jaworski, Armen, Szabłowski, Łukasz, Ćwieka, Karol, Olszewski, Artur, Szczęśniak, Arkadiusz, Skibiński, Jakub, and Dybiński, Olaf

Subjects
MOLTEN carbonate fuel cells, PRINTMAKING, MANUFACTURING cells, CATHODES, MANUFACTURING processes
Abstract

The paper presents an investigation into the three cathode layers for the Molten Carbonate Fuel Cell that were obtained by using printing techniques on various surfaces. The main differences during the manufacturing process were the substrates used when printing the layers: glass and two different sorts of paper. The cathodes were investigated at the theoretical and experimental level. To identify the influence of the substrate used we built a mathematical model of the fuel cell, in which the influence is expressed by the conductivity of the layer. The paper demonstrates the possibility of using printing techniques to manufacture Molten Carbonate Fuel Cell layers. [ABSTRACT FROM AUTHOR]

Published
2019

17. Effect of anode porosity on the performance of molten carbonate fuel cell.

Author

Ćwieka, Karol, Ibrahim, Samih Haj, Milewski, Jarosław, and Wejrzanowski, Tomasz

Subjects
ANODES, POROSITY, MICROSTRUCTURE, MOLTEN carbonate fuel cells, SINTERING
Abstract

Nickel anodes, for molten carbonate fuel cell (MCFC), of various porosities were fabricated using tape casting and firing processes. The same slurry composition but different sintering temperatures, 700 and 900°C, were used to obtain different anode porosities. Combined experimental and computational techniques were used to study the influence of anode porosity on the performance of molten carbonate fuels cell. The power generated by the 20.25 cm° class MCFC single cell was experimentally measured at 650°C in humidified hydrogen with respect to the porosity of the anodes. The computational aspect involved the modeling of the microstructure of the sintered porous anodes which included measured size distribution of Ni powder used and porosities of the manufactured materials. For the best performing single cell, the optimal porosity for the nickel MCFC anode was experimentally determined to be 55%. Computations revealed that the specific surface area, which is a determining factor in electrochemical reactions, reaches a maximum at a porosity of 52%. [ABSTRACT FROM AUTHOR]

Published
2018

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