The catalytic performance of Ni/MgSiO3 catalyst for methane steam reforming in operation of direct internal reforming MCFC

Li, ZhenLan; Devianto, Hary; Kwon, Heock-Hoi; Yoon, Sung Pil; Lim, Tae‐Hoon; Lee, Ho‐In

doi:10.1016/j.jiec.2010.01.058

Cited by 14 publications

(2 citation statements)

References 16 publications

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“…The cell voltage of MCFC single cells is generally higher than 0.8 V at 150 mA cm À2 [3,17,18]. Thus, the single cells fabricated with NieAleCr anodes with different compositions showed good electrode performance even though they had small deviation in terms of cell voltage.…”

Section: Resultsmentioning

confidence: 97%

Fabrication of Ni–Al–Cr alloy anode for molten carbonate fuel cells

Nguyen

Song

Seo

et al. 2012

Materials Chemistry and Physics

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Section: Resultsmentioning

confidence: 97%

Fabrication of Ni–Al–Cr alloy anode for molten carbonate fuel cells

Nguyen

Song

Seo

et al. 2012

Materials Chemistry and Physics

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“…The source term in equation (6) accounts for the water-gas shift reaction in the anode. Internal steam reforming in the anode has not been considered, as there is no specific active catalyst for this reaction [25]. Generation and destruction of species due to the electrochemical reactions are computed through proper boundary conditions on the surface between the electrolyte and the electrode.…”

Section: Mcfc Stack Geometry and Modelmentioning

confidence: 99%

Design improvement of circular molten carbonate fuel cell stack through CFD Analysis

Verda

Sciacovelli

2011

Applied Thermal Engineering

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Molten carbonate fuel cell (MCFC) is a promising technology for distributed power generation. The core of a MCFC power generation unit is the stack, where various fuel cells are connected together in series and parallel in order to obtain the desired voltage and power. Stack geometry and configuration are major engineering topics, as inhomogeneous temperature or mass fractions cause inefficient performances of the fuel cells, as efficiency and power smaller than the expected and shorter lifetime. A detailed model is a useful tool to improve stack performances, through design improvements. In this paper, a 3D model of a stack composed of 15 circular MCFC, considering heat, mass and current transfer as well as chemical and electrochemical reactions is presented. The model validation is conducted using some preliminary experimental data obtained for a MCFC stack developed in the Fabbricazioni Nucleari laboratories. These results are examined in order to improve the stack configuration. It is shown that power density may be increased of about 20% through double side feeding. In addition, the average temperature gradients in the axial direction are reduced of more than 70%. Significant reductions in the temperature gradients, especially in transversal direction, can be achieved by adjusting the mass flow rate of cathodic gas supplied to the various cells. NOMENCLATUREEffective diffusion coefficient (m 2 s -1 )Mass diffusion coefficient (m 2 s -1 ) Apparent activation energy (K -1 ) Faraday constant (96487 C mol -1 ) Specific enthalpy (J kg -1 ) M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 Viscosity (m s -2 ) Density (kg m -3 ) Electric conductivity (Ω -1 m -1 ) Tortuosity Mass fraction of species i

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