Dynamic modelling and control of planar anode-supported solid oxide fuel cell

Chaisantikulwat, A.; Diaz-Goano, C.; Meadows, Edward S.

doi:10.1016/j.compchemeng.2007.12.003

Cited by 115 publications

(73 citation statements)

References 10 publications

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“…(2); anyway, to increase the accuracy of the model, we decided to introduce a non-zero convective term using the Darcy's law to define the velocity term (Refs. [23,24]):…”

Section: Convective Termmentioning

confidence: 99%

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Experimental Investigations and Modeling of Direct Internal Reforming of Biogases in Tubular Solid Oxide Fuel Cells

et al. 2011

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Biogas‐fed Solid Oxide Fuel Cell (SOFC) systems can be considered as interesting integrated systems in the framework of distributed power generation. In particular, bio‐methane and bio‐hydrogen produced from anaerobic digestion of organic wastes represent renewable carbon‐neutral fuels for high efficiency electrochemical generators.With such non‐conventional mixtures fed to the anode of the SOFC, the interest lies in understanding the multi‐physics phenomena there occurring and optimizing the geometric and operation parameters of the SOFC, while avoiding operating and fuel conditions that can lead to or accelerate degradation processes.In this study, an anode‐supported (Ni‐YSZ) tubular SOFC was considered; the tubular geometry enables a relatively easy separation of the air and fuel reactants and it allows one to evaluate the temperature field of the fuel gas inside the tube, which is strictly related to the electrochemical and heterogeneous chemical reactions occurring within the anode volume.The experiments have been designed to analyze the behavior of the cell under different load and fuel utilization (FU) conditions, providing efficiency maps for both fuels.The experimental results were used to validate a multi‐physics model of the tubular cell. The model showed to be in good agreement with the experimental data, and was used to study the sensitive of some selected geometrical parameters modification over the cell performances.

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“…(2); anyway, to increase the accuracy of the model, we decided to introduce a non-zero convective term using the Darcy's law to define the velocity term (Refs. [23,24]):…”

Section: Convective Termmentioning

confidence: 99%

“…[23,24]) phenomena occurring both in the electrodes and the channels are solved with the Maxwell±Stefan (MS) approach (a complete reference for the use of this equation can be found in Ref. [25]); the continuity equation for each chemical species takes then the following form: Fig.…”

Section: Advection±diffusionmentioning

confidence: 99%

Experimental Investigations and Modeling of Direct Internal Reforming of Biogases in Tubular Solid Oxide Fuel Cells

et al. 2011

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“…temperatures T i and T corresponding with t i and t. Optimal curve (31) refers to the case when the radiation relaxation is subject to a constraint resulting from Eq. (28). Equation (31) is associated with the entropy production term in Eq.…”

Section: Potential Functions For Quasilinear Kineticsmentioning

confidence: 99%

Synthesizing modeling of power generation and power limits in energy systems

Sieniutycz

2015

Energy

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“…For SOFC with hydrogen as a fuel source, the following heat sources were generated [17]. Q was the heat source at which thermal energy is emitted, given by the convective and radiative heat effects implemented as a boundary condition along the flow tubular channels walls.…”

Section: Heat Transport Balancementioning

confidence: 99%

Numerical Investigation into Thermofluidic and Electrochemical Characteristics of Tubular‐type SOFC

Kuo

2010

Fuel Cells

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Three‐dimensional simulations based on a multi‐physics model are performed to examine the thermofluidic and electrochemical characteristics of a tubular, anode‐supported solid oxide fuel cell (SOFC). The simulations focus on the local transport characteristics of the cathode and anode gases and the distribution of the temperature field within the fuel cell. In addition, the electrochemical properties of the SOFC are systematically examined for a representative range of inlet gas temperatures and pressures. The validity of the numerical model is confirmed by comparing the results obtained for the correlation between the power density and the current density with the experimental results presented in the literature. Overall, the present results show that the performance of the tubular SOFC is significantly improved under pressurised conditions and a higher operating temperature.

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Dynamic modelling and control of planar anode-supported solid oxide fuel cell

Cited by 115 publications

References 10 publications

Experimental Investigations and Modeling of Direct Internal Reforming of Biogases in Tubular Solid Oxide Fuel Cells

Experimental Investigations and Modeling of Direct Internal Reforming of Biogases in Tubular Solid Oxide Fuel Cells

Synthesizing modeling of power generation and power limits in energy systems

Numerical Investigation into Thermofluidic and Electrochemical Characteristics of Tubular‐type SOFC

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