Control of solid oxide fuel cells damage using infrared thermography

El-amiri, Asseya; Saifi, Abderrahim; Elhassnaoui, Ahmed; Obbadi, Abdellatif; Errami, Youssef; Sahnoun, Smail

doi:10.1016/j.ijhydene.2018.04.222

Cited by 8 publications

(5 citation statements)

References 17 publications

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“…[4,26] Since the electrochemical performance of the SOFC cathode materials is related to the synthesis procedure, selection of electrolyte materials and the micro-structure of cathode layers, [5] the output power density and the durability of the BSCFW-0.05Mg single cell could be further optimized by introducing electrolyte into cathode material [27] and through wet chemical impregnation. [28] Scanning electron microscope (SEM) cross-sectional images (Figure S6, Supporting Information) of cells before and after aging prepared with x = 0.05 appear identical without interfacial contact issues including interfacial chemical reaction, [29] melting, [30] or delamination [31] between the SDC electrolyte and x = 0.05 cathode. No differences were observed in the cross-sectional SEM images between the aged and unaged cells prepared from undoped BSCFW.…”

Section: Resultsmentioning

confidence: 99%

“…Scanning electron microscope (SEM) cross‐sectional images (Figure S6, Supporting Information) of cells before and after aging prepared with x = 0.05 appear identical without interfacial contact issues including interfacial chemical reaction, [ 29 ] melting, [ 30 ] or delamination [ 31 ] between the SDC electrolyte and x = 0.05 cathode. No differences were observed in the cross‐sectional SEM images between the aged and unaged cells prepared from undoped BSCFW.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Long‐Term Cathode Stability by Tuning Interfacial Nanocomposite for Intermediate Temperature Solid Oxide Fuel Cells

Dawson

Zanella

et al. 2022

Adv Materials Inter

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Performance durability is one of the essential requirements for solid oxide fuel cell materials operating in the intermediate temperature range (500–700 °C). The trade‐off between desirable catalytic activity and long‐term stability challenges the development and commercialization of electrode materials. Here an oxygen cathode material, Ba0.5Sr0.5(Co0.7Fe0.3)0.69−xMgxW0.31O3−δ (BSCFW‐xMg), that exhibits excellent electrocatalytic performance through the addition of an optimized amount of Mg to the self‐assembled nanocomposite Ba0.5Sr0.5(Co0.7Fe0.3)0.69W0.31O3−δ (BSCFW) by simple solid‐state reaction is reported. Distinct from the bulk and surface approaches to introduce vacancies and defects in materials design, here the Mg2+ ions concentrate at the single perovskite/double perovskite interface of BSCFW with dislocations and Mg2+‐rich nanolayers, resulting in stressed and compositionally inhomogeneous interface regions. The interfacial chemistry within these nanocomposites provides an additional degree of freedom to enable performance optimization over single phase materials and promotes the durability of alkaline‐earth based fuel cell materials.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Enhanced Long‐Term Cathode Stability by Tuning Interfacial Nanocomposite for Intermediate Temperature Solid Oxide Fuel Cells

Dawson

Zanella

et al. 2022

Adv Materials Inter

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“…On the basis of quantitative analysis of temperature distribution by pulsed infrared thermography, 15,16 El-Amiri et al, obtained crack initiation information, and crack propagation was simulated in electrolyte/anodesupported planar SOFCs. 17 Furthermore, the mechanism of crack initiation and degradation for planar SOFC at high working temperature was obtained, and crack initiation in the anode-electrolyte interface was concluded by Kim et al 18 Xie et al show that the edge of cell is more prone to cracking.…”

Section: Introductionmentioning

confidence: 95%

Numerical study of detecting crack initiation in a planar solid oxide fuel cell

Fahs

Ghassemi

Fahs

2020

Env Prog and Sustain Energy

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Converting chemical energy into electricity is done by an electrochemical device known as a fuel cell. Thermal stress is caused by high operating temperature, between 700 and 1,000 C, of solid oxide fuel cell (SOFC). Thermal stress is the main cause of crack initiation and crack propagation. This phenomenon may cause gas leakage, structure instability and cease operation of the SOFC before its lifetime. The aim of this study is to present a method that predicts the initiation of cracks in an anisotropic porous planar SOFC. The coupled governing nonlinear differential equations are solved numerically as for heat transfer, fluid flow, mass transfer, mass continuity, and momentum. An in-house computer code which is based on computational fluid dynamics, computational structural mechanics and extended finite element method is utilized and developed. This code, according to Darcy and Navier-Stokes thermofluid model, determines the temperature and stress distribution. The results show that the highest thermal stress occurs at the upper corners of cathode and at the lower corners of the anode. The maximum temperature occurs at the middle of the electrolyte cathode and electrolyte anode, while the maximum pressure occurs at the middle of the upper and lower section of the anode and cathode. In addition, the thickness of the cathode electrode at the left side is increased by 1.5%. Finally, the crack initiation occurs at the left side between the upper and lower corners of the cathode.

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“…In the studies currently available, some fuel cell internal leakage diagnostic methods have been already developed, such as the electrochemical impedance spectroscopy (EIS), , the cross-current diagnostics, , the voltage difference diagnostics, , the cathode outlet hydrogen concentration diagnostics, , and the thermography diagnostics. , However, with advances in technology and increased complexity, diagnostic strategies have begun to move in a more advanced and intelligent phase. Figure shows a flowchart of three diagnostic methods for fuel cell internal leakage in FCVs: (1) the machine learning-based leakage diagnosis, (2) the signal processing-based leakage diagnosis, and (3) the leakage diagnosis based on sensor fusion and multimodal methods.…”

Section: Leakage Diagnosismentioning

confidence: 99%

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

Hu,

Gao,

Cheng

et al. 2024

Energy Fuels

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As fuel cell vehicles (FCVs) are increasingly put on the market and hydrogen refueling stations (HRSs) are built accordingly, fatal accidents caused by explosion due to hydrogen leakage are reported and have become a critical issue. The explosion results from complicated processes associated with the so-called hydrogen jet and diffusion when the hydrogen leaks from FCVs or HRSs, demonstrating its sophisticated characteristics and presenting significant technical challenges. Recently, particularly in the past a few years, researchers have established a variety of theoretical models to reveal the relevant mechanisms and introduced a series of monitoring/diagnostic approaches to detect and control the relevant hazards. This comprehensive review summarizes the major research outcomes and particularly the state-of-the-art progresses in relation to hydrogen leakage in FCVs and HRSs, including (1) subsonic jets, (2) underexpanded jets, (3) hydrogen diffusion behavior, (4) hazard reduction methods for confined and free spaces, (5) four types of widely used hydrogen detection technologies, and (6) the application of hydrogen leakage diagnostic methods in different systems. An insight of the review is that research on hydrogen leakage related to FCVs and HRSs should be combined with the relevant realistic characteristics. The characteristics of hydrogen jets generated in real gaps are discussed, and hazard reduction methods are proposed based on the characteristics of hydrogen diffusion in different confined and free spaces. It is suggested that, in order to integrate and evaluate multiple sensor data points and more accurately determine the leakage location and the leakage level, artificial intelligence technologies could be introduced to resolve the issues encountered currently.

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Control of solid oxide fuel cells damage using infrared thermography

Cited by 8 publications

References 17 publications

Enhanced Long‐Term Cathode Stability by Tuning Interfacial Nanocomposite for Intermediate Temperature Solid Oxide Fuel Cells

Enhanced Long‐Term Cathode Stability by Tuning Interfacial Nanocomposite for Intermediate Temperature Solid Oxide Fuel Cells

Numerical study of detecting crack initiation in a planar solid oxide fuel cell

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

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