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Simulation and characterization of SOFC fuel cell model

Mankour Mohamed, Sekour M’hamed, Koulali Mustapha

Przegląd Elektrotechniczny

2022

R. 98, nr 7

18--24

The SOFC fuel cell is one of the so-called solid electrolyte fuel cells that operate at high temperatures of 650 to 1200°C. This temperature level is necessary for the solid electrolyte to have sufficient ionic conductivity. This high temperature causes a very high heat exchange between the various components of the SOFC. In the 1-D model, the fuel cell is usually treated as a set of layers including interconnects, air channel, electrodes, electrolyte, and fuel channel both gas composition and flow rate in each channel are assumed to be constant, and their mean values are used in the simulation.

Ogniwo paliwowe SOFC należy do tzw. ogniw paliwowych ze stałym elektrolitem, które pracują w wysokich temperaturach od 650 do 1200°C. Ten poziom temperatury jest konieczny, aby elektrolit stały miał wystarczającą przewodność jonową. Tak wysoka temperatura powoduje bardzo dużą wymianę ciepła pomiędzy poszczególnymi elementami SOFC.

Practical Application of 1-D Sediment Transport Model

Łapuszek M., Paquier A.

Archives of Hydro-Engineering and Environmental Mechanics

2007

Vol. 54, nr 4

245-260

The aim of the paper is to present a numerical simulation of sediment transport in a mountain river. Two one-dimensional sediment transport models: RubarBE and Metoda are applied to predict variation of longitudinal bed profile along the river reach and changes in the cross-sectional geometry due to erosion or deposition of sediment. In the current paper, simulation of the sediment transport is applied for the experimental reach of the River Raba - a mountain tributary of the Vistula River. The reach is located from 81.829 km to 77.751 km upstream from the Dobczyce Dam. This part of the river was completely changed due to the project concerning the extension of the Kraków-Zakopane road, which is located next to the Raba River. The results of simulation of riverbed evolution, before and after river training carried out by both models, are analysed and discussed.