Numerical modeling and parametric analysis of solid oxide fuel cell button cell testing process

2018 ◽  
Vol 43 (7) ◽  
pp. 2635-2642 ◽  
Author(s):  
Keqing Zheng ◽  
Kecheng Xie ◽  
Li Li ◽  
Shuanglin Shen ◽  
Shaorong Wang
Keyword(s):  
Numerical Modeling ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Parametric Analysis ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cell Testing ◽  
Button Cell

Performance Metrics for Solid Oxide Fuel Cell Cross-Section Design

2009 ◽  
Author(s):  
George J. Nelson ◽  
Comas Haynes ◽  
William Wepfer
Keyword(s):  
Fuel Cell ◽  
Partial Pressure ◽  
Solid Oxide Fuel Cell ◽  
Correction Factor ◽  
Current Density ◽  
Performance Metrics ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Pressure Distributions ◽  
Button Cell

Analytical models have been developed to describe the partial pressure distributions of reactants within solid oxide fuel cell (SOFC) electrodes and introduce the concept of a reactant depletion current density. These existing analytical expressions for two-dimensional reactant partial pressure distributions and the reactant depletion current density are presented in non-dimensional form. Performance metrics for SOFC electrodes are developed including a correction factor that can be applied to button-cell predictions of pressure distribution and two forms of dimensionless reactant depletion current density. Performance predictions based on these metrics are compared to numerical predictions of partial pressure and depletion current density based on a finite element solution of the dusty-gas model (DGM) within SOFC electrodes. It is shown that the pressure correction factor developed provides a reasonable prediction of interconnect geometry effects. Thus, it is presented as a modeling tool that can be applied to translate component level fidelity to cell and stack level models. The depletion current density metrics developed are used to present basic design maps for SOFC unit cell cross-sections. These dimensionless forms of the depletion current density quantify the influence of sheet resistance effects on reactant depletion and can predict the deviation from the limiting current behavior predicted using a button-cell model.

Development of an O-ring from NR/EPDM filled silica/CB hybrid filler for use in a solid oxide fuel cell testing system

2020 ◽  
Vol 88 ◽  
pp. 106568
Author(s):  
Sophos Chea ◽  
Montri Luengchavanon ◽  
Ekasit Anancharoenwong ◽  
Kua-anan Techato ◽  
Warangkana Jutidamrongphan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Testing System ◽  
Oxide Fuel ◽  
Hybrid Filler ◽  
Cell Testing

scholarly journals A parametric analysis of thermodynamic losses in an anode of a solid oxide fuel cell

2021 ◽  
Vol 2116 (1) ◽  
pp. 012081
Author(s):  
Tomasz Prokop ◽  
Grzegorz Brus ◽  
Shinji Kimijima ◽  
Janusz Szmyd
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Chemical Reaction ◽  
Parametric Analysis ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Micro Channels ◽  
Fuel Cell Electrode ◽  
Current Conduction ◽  
Cell Electrode

Abstract In this paper, generation of thermodynamic losses in the micro-channels of a Solid Oxide Fuel Cell electrode is discussed. Diffusive-convective equation is implemented to compute local concentrations of reagents. The model accounts for both the Fick’s, and the Knudsen’s diffusion. For a number of cases the total losses are decomposed to isolate the contributions of the diffusion, the current conduction, and the chemical reaction irreversibilities.

Numerical Modeling of a Disk Shape Planar SOFC

2004 ◽  
Author(s):  
Zheng Dang ◽  
Hiroshi Iwai ◽  
Kenjiro Suzuki
Keyword(s):  
Mass Transfer ◽  
Numerical Modeling ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Thermal Management ◽  
Effective Means ◽  
Solid Oxide ◽  
Potential Fields ◽  
Oxide Fuel ◽  
Electrochemical Processes

In this study, numerical modeling of air and fuel flows, electrochemical processes, heat and mass transfer and electric potential fields and related electric current has been attempted for a disk shape planar solid oxide fuel cell (SOFC). This is the extension of the previous similar works on a tubular type solid oxide fuel cell, Nishino et al. (2003) and Li and Suzuki (2004). Numerical model to be established can be used as an effective means to simulate the phenomena in the cell. Such information can be used in the optimum design and thermal management of SOFC.

Parametric Analysis on a Novel Hybrid System of Solid Oxide Fuel Cell and Micro Gas Turbine

2010 ◽  
Author(s):  
Wenshu Zhang ◽  
Huisheng Zhang ◽  
Shilie Weng
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Hybrid System ◽  
Parametric Analysis ◽  
Solid Oxide ◽  
Methane Reforming ◽  
The Novel ◽  
Oxide Fuel ◽  
Micro Gas Turbine

This paper presents the steady state parametric analysis of the solid oxide fuel cell and micro gas turbine hybrid system based on the IPSEpro software. The characteristic of the novel hybrid system is that both the fuel entering the heat exchanger reformer (HER) and air entering the fuel cell are preheated by mixing with the anode exhaust and cathode exhaust respectively, and thus the normally used heat exchangers can be cut. The heat exchange reformer is introduced for methane reforming. The analysis of the effects of methane reforming degree and the fuel utilization on the hybrid system performance is performed. The efficiency of the hybrid system is up to 67.3% at the design point. The results show the novel hybrid system has great potential for the practical application.

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