scholarly journals Analysis of Gas Leakage and Current Loss of Solid Oxide Fuel Cells by Screen Printing

2017 ◽  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Screen Printing ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Current Loss ◽  
Gas Leakage

Leakage Studies With Seals for Solid-Oxide Fuel Cells

2007 ◽  
Author(s):  
Christopher K. Green ◽  
Jeffrey L. Streator ◽  
Comas Haynes ◽  
Edgar Lara-Curzio
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Steel Substrate ◽  
Vertical Direction ◽  
Solid Oxide ◽  
Physical Parameters ◽  
Oxide Fuel ◽  
Element Analysis ◽  
Gas Leakage ◽  
Interfacial Gap

This research seeks to characterize the gas leakage of a mica-based compressive seal assembly in planar solid-oxide fuel cells through modeling and experiment. In particular, it is of interest to assess how certain physical parameters (i.e., seal material composition, compressive applied stress, and surface finish) affect leakage rates. Finite element analysis is used to determine the macroscopic stresses and deformations in the sealing interface, while a microscale contact mechanics analysis is employed to model the role of surface roughness on the mean interfacial gap at the interface. An averaged Reynolds equation from mixed lubrication theory is applied to model the leakage flow across the sealed interface, which is of nanometer to micrometer dimensions in the vertical direction. In conjunction with the mathematical modeling, leakage results are reported. For these tests, an annular Inconel tube was pressed against a stainless steel substrate, creating an annular sealing zone. The inside of the tube is pressurized with a test gas, the mass of which is monitored during the leakage experiment. Test results are compared to model predictions.

Effect of Gas Leakage on the Performance of Planar Solid Oxide Fuel Cells

2020 ◽  
Vol MA2020-02 (40) ◽  
pp. 2621-2621
Author(s):  
Samuel Koomson ◽  
Arthur Ebenezer ◽  
ChoongGon Lee
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Gas Leakage

scholarly journals Nanoparticle scaffolds for syngas-fed solid oxide fuel cells

2015 ◽  
Vol 3 (6) ◽  
pp. 3011-3018 ◽  
Author(s):  
Paul Boldrin ◽  
Enrique Ruiz-Trejo ◽  
Jingwen Yu ◽  
Robert I. Gruar ◽  
Christopher J. Tighe ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Screen Printing ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Printing Techniques ◽  
Ink Formulation

Ceramic scaffolds have been produced from a mixture of nanoparticles and larger particles using conventional ink formulation and screen-printing techniques. The resultant scaffolds have lower sintering temperatures and higher porosity and cells produced from these have better performance at lower temperatures and under syngas.

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