Radiation heat transfer analysis of the monolith type solid oxide fuel cell

Murthy, Sunil; Fedorov, Andrei G.

doi:10.1016/s0378-7753(03)00732-8

Cited by 62 publications

(21 citation statements)

References 5 publications

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“…The electrochemical heating effect (at the anode) needs to be separated from the Joule term within the bulk of the electrolyte. Murthy and Federov [23] have suggested that neglect of thermal radiation in SOFCs can lead to substantial overprediction of the temperature field, and it is the authors' intention to investigate these claims in the future. Some CFD codes now calculate the electric field potential in the electrolyte and metallic interconnects, in place of the one-dimensional Nernst equation.…”

Section: Discussionmentioning

confidence: 99%

A Distributed Resistance Analogy for Solid Oxide Fuel Cells

Beale

Zhubrin²

2005

Numerical Heat Transfer, Part B: Fundamentals

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A distributed resistance analogy for solid oxide fuel cells Beale, Steven; Zhubrin, S. V.Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Numerical Heat Transfer, Part B: Fundamenals, 47, 6, 2005 Publisher's version / la version de l'éditeur: This article maybe used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. The method of distributed resistances is outlined for performance calculations in solid oxide fuel cells. The domain is discretized using a multiply shared space method. Both potentiostatic and galvanostatic conditions are considered. Mass transfer effects on the heat transfer coefficients and the Nernst potential are taken into consideration. Calculations, for one cell and for a 10-cell stack, are compared to those obtained using a detailed numerical method. Agreement is very good. It is concluded that the distributed resistance analogy may be used to predict transport phenomena in fuel cell stacks at a fraction of the computational cost required for conventional means.

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Section: Discussionmentioning

confidence: 99%

A Distributed Resistance Analogy for Solid Oxide Fuel Cells

Beale

Zhubrin²

2005

Numerical Heat Transfer, Part B: Fundamentals

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“…Contrary to the electrodes, the electrolyte is considered to be optically thin ( β 1 L L   ) [13] and isotropic nondiffusing gray medium [5]. Consequently, the SchusterSchwarzschild two-flux method is applied to solve the radiative energy equation.…”

Section: Radiative Propertiesmentioning

confidence: 99%

“…Contrary to the previously published literatures, the found results show that radiative heat transfer has a negligible effect on the temperature distribution. Murthy et al [5] studied numerically the radiation heat transfer effects on mass and temperature distributions inside a solid oxide fuel cell. The obtained results show significant changes in the temperature distribution and parameters of the SOFC with the inclusion of radiation effects.…”

Section: Introductionmentioning

confidence: 99%

LBM Simulation of Heat Transfer in Solid Oxide Fuel Cell

Mejri¹,

Mahmoudi²,

Abbassi³

et al. 2016

IJHT

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In this paper, lattice Boltzmann method is used to study the radiative effect on the temperature distribution inside the solid oxide fuel cell (SOFC). A two-dimensional model takes into account the ohmic losses in the different components of the SOFC is considered in this study. Schuster-Schwarzschild method is applied in order to model the radiative transfer in the electrolyte optically thin, whereas Rosseland method is applied for modelization the radiative transfer in the electrodes optically thick. Results show that the highest temperature is obtained in the electrolyte. Also, the radiative effect does not change the temperature distribution inside the SOFC; there is only a temperature reduction.

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“…This approximation is considered appropriate for optically thick regions, i.e., for porous anode and cathode where the optical thickness τ >>1 (Murthy and Fedorov (2003)). It should be mentioned that the above approximation is not valid near the boundary, and this limitation can be overcome by coupling the diffusion model with the Schuster-Schwartzchild two-flux approximation for boundaries of the optically thick medium.…”

Section: Fig 9 Contours Of Temperature T Along the Main Flow Directimentioning

confidence: 99%

“…The twoflux approximation also provides a simple solution method for onedimensional radiation in an optically thin domain, e.g., in the electrolyte. If it is assumed that the intensity is composed of two homogeneous components such as q + and q -in the +x and -x directions, then the RTE can be reduced as (Beale (2005) with and without accounting for thermal radiation heat transfer (Murthy and Fedorov (2003)). …”

Section: Fig 9 Contours Of Temperature T Along the Main Flow Directimentioning

confidence: 99%

On Modeling of Heat and Mass Transfer and Other Transport Phenomena in Fuel Cells

Sundén¹,

Yuan²

2010

Frontiers in Heat and Mass Transfer

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Depending on specific configuration and design, a variety of physical phenomena is present in fuel cells, e.g., multi-component gas flow, energy and mass transfer of chemical species in composite domains and sites. These physical phenomena are strongly affected by chemical/electrochemical reactions in nano-/micro-scale structured electrodes and electrolytes. Due to the electrochemical reactions, generation and consumption of chemical species together with electric current production take place at the active surfaces for all kinds of fuel cells. Furthermore, water management and twophase flow in proton exchange membrane fuel cells (PEMFCs) and internal reforming reactions of hydrocarbon fuels in solid oxide fuel cells (SOFCs) are strongly coupled with the electrochemical reactions and other transport processes to make the physical phenomena even more complicated. For modeling and analysis at the unit-cell and component level typically CFD-based approaches might be appropriate. On the fuel cell stack and system levels, methods like lumped parameter analysis and overall energy/mass balances are more suitable. This paper describes the various kinds of methods for modeling and analysis, and how these can be used as well as their applicability and limitations.

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Radiation heat transfer analysis of the monolith type solid oxide fuel cell

Cited by 62 publications

References 5 publications

A Distributed Resistance Analogy for Solid Oxide Fuel Cells

A Distributed Resistance Analogy for Solid Oxide Fuel Cells

LBM Simulation of Heat Transfer in Solid Oxide Fuel Cell

On Modeling of Heat and Mass Transfer and Other Transport Phenomena in Fuel Cells

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