CFD evaluation of solid oxide fuel cell performances with different fuels

Fan, L., Aravind, P.V., Dimitriou, E., Pourqui, M.J.B.M., and Verkooijen, A.H.M. (2012) CFD evaluation of solid oxide fuel cell performances with different fuels. In: International Proceedings of Chemical, Biological and Environmental Engineering (28) 16. pp. 80-84. From: ICFEE 2012: International Conference on Future Environment and Energy, 26-28 February 2021, Singapore.

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Abstract

The operation of solid oxide fuel cells (SOFC) fueling different types of carbon-based fuels (i.e. natural gas, biosyngas, coal gas, etc.) become one of the main topics of SOFC research in recent years. Fuel gases like methane can be steam-reformed or partially oxidized in the SOFCs. Hydrogen is produced from the reforming reaction, which has crucial impact on the performance of solid oxide fuel cells, especially on the current density, temperature distribution and the consequent thermal-stress. Mathematical modeling together with simulation is a useful approach for designing SOFCs and predicting their operation safety. With a single channel model taking direct internal reforming into account, this work aims to investigate the performance of an anode-supported intermediate temperature planar SOFC designed for methane under co- flow operation. SOFC performances with three different fuel gases are compared. The direct internal reforming (DIR) reaction of methane, the water-gas shift (WGS) reaction and the electrochemical reaction of hydrogen are the three reactions taken into account in this simulation work. Detailed comparisons of the gas concentrations and temperature change profiles among these three simulation models are presented and discussed. Thermo-dynamic predictions of both nickel oxidation and carbon deposition are also employed to check the operation safety of SOFCs fueled with different gases.

Item ID: 60841
Item Type: Conference Item (Research - E1)
ISBN: 978-981-07-1470-3
Keywords: SOFCs; CFD modeling; biosyngas; methane reforming
Copyright Information: © 2012. IACSIT Press
Date Deposited: 31 Aug 2021 02:01
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090402 Catalytic Process Engineering @ 100%
SEO Codes: 85 ENERGY > 8504 Energy Transformation > 850404 Solid Oxide Fuel Cells @ 60%
85 ENERGY > 8505 Renewable Energy > 850501 Biofuel (Biomass) Energy @ 40%
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