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

• Autorzy: Ćwieka K. , Ibrahim S. H. , Milewski J. , Wejrzanowski T.
• Języki publikacji: EN

Abstrakty

EN

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 cm2 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%.

Słowa kluczowe

EN

anode; porosity; microstructure; performance; MCFC; modeling; simulation

PL

anoda; porowatość; mikrostruktura; wydajność; MCFC; modelowanie; symulacja

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2018
• Tom: Vol. 98, nr 2
• Strony: 228--237
• Opis fizyczny: Bibliogr. 53 poz., rys., tab., wykr.

Twórcy

autor

Ćwieka K.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141, 02-507 Warsaw, Poland

autor

Ibrahim S. H.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141, 02-507 Warsaw, Poland

autor

Milewski J.

• Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw

autor

Wejrzanowski T.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141, 02-507 Warsaw, Poland

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).