Planar solid oxide fuel cells: the Australian experience and outlook

Godfrey, Bruce; Föger, K.; Gillespie, Rohan; Bolden, R.; Badwal, S. P. S.

doi:10.1016/s0378-7753(99)00412-7

Cited by 19 publications

(7 citation statements)

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“…For example, it has been developed successfully for marketing requirements by Ceramic Fuel Cells Ltd. of Australia. 1,2 The application of SOFCs in small or portable power sources has attracted more and more attention in recent years because SOFCs can use hydrocarbon fuels directly, thus enabling a higher system power density. 3 While two common stack configurations-tubular and planar designs 4 are widely applied in large-scale SOFC systems such as in power plants, more flexible stack designs are needed for small applications because a relatively higher voltage is required in a limited small space.…”

Section: Introductionmentioning

confidence: 99%

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC

Sui

Liu

2008

Journal of the American Ceramic Society

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Cone‐shaped Sm‐doped CeO2 (Ce0.8Sm0.2O1.9, SDC) electrolyte cylinders have been fabricated using the slip‐casting technique. A single solid oxide fuel cell has been prepared by applying a Sm0.5Sr0.5CoO3 cathode on the outside of the cylinders and a NiO–SDC (7:3 wt%) anode on the inside. The open circuit voltage of the cell was 0.93 V at 400°C, and a maximum power density of about 300 mW/cm2 at 700°C was obtained with humidified hydrogen (3% H2O) as the fuel and ambient air as the oxidant. Impedance results showed that the performance of the cell was mainly influenced by the ohmic resistance of the electrolyte.

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Section: Introductionmentioning

confidence: 99%

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC

Sui

Liu

2008

Journal of the American Ceramic Society

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“…In this case, the fuel is pumped into the tube, with air on the external. Moreover, the findings obtained by Singhal [34], Williams et al [40] and Godfrey et al [41] portray lower current density in the SOFC tubular, in comparison to that of planar. This occurs due to the in-plane path, where the electrons move from electrodes circumference to interconnecting cells.…”

Section: Sofc Designmentioning

confidence: 88%

Simulation and Sensitivity Analysis for Various Geometries and Optimization of Solid Oxide Fuel Cells: A Review

Tonekabonimoghaddam

Shamiri²

2021

Eng

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Solid oxide fuel cells (SOFCs) are considered as one of the most promising fuel cell types for application as high efficiency power generators. This work reviews the use of computational fluid dynamics (CFD) to maximise SOFC performance and life, and minimise cost, by considering numerous configurations and designs. A critical analysis of available literature proves that detailed research on the simulation of thermal stress and its damaging impact on the SOFC is still in its early stage of development. Numerical simulation is expected to help optimize the design, operating parameters and fuel cell materials. Therefore, sensitivity analysis of fuel cell parameters using simulation models is analysed to address the issue. Finally, the present status of the SOFC optimization efforts is summarized so that unresolved problems can be identified and solved.

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“…They have achieved a significant intellectual property position in know-how and patents, with over 80 people and $60 million invested in the venture (Godfrey et al 2000). The CFCL focus is on tape casting and screen-printing of electrolyte-supported cells.…”

Section: Planar Designmentioning

confidence: 99%

High Temperature Ceramic Fuel Cell Measurement and Diagnostics for Application to Solid Oxide Fuel Cell Systems

Koehler¹,

Jarrell²,

Bond³

2001

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SummaryThere is a growing need for high efficiency, portable and distributed electric power generation. One family of technologies to meet these needs consists of the various forms of fuel cells. This paper is focused on the assessment of sensors and measurement technologies needed to give improved control, diagnostics and data for prognostics for use with high temperature ceramic fuel cells, and for initial demonstration of solid oxide fuel cells (SOFC). This paper also highlights the many challenges and complexities involved with SOFC technology, such as the lack of continuity between research projects, making it difficult to advance the technology in a cooperative manner. Research programs are noted; particularly those that are starting to provide continuity across the wide variety of research projects underway, such as the International Energy Agency. This paper is the result of an extensive literature review and technology evaluation, performed to determine the status of sensors and measurement technologies. It became apparent that many researchers are trying to overcome the same fuel cell design challenges. All researchers have found it difficult to obtain sound data from measurements inside inaccessible designs and heavily insulated enclosures operating at high temperatures. Although some advancement has been made in materials, systems modeling, and innovative manufacturing techniques, few answers have been found in the measurement and diagnostics field.Understandably, most approaches to measurements and diagnostics in fuel cells have been to extend an existing practice to solid oxide fuel cells, such as adapting established aqueous electrochemistry techniques (i.e., impedance spectroscopy). Although this technique has manifested some key characteristics of the SOFC, and is arguably one of the most advanced techniques in this field, work is still needed to resolve disagreements on the application and interpretation methods.Realizing the many constraints involved in SOFC testing and resolved to the fact that simple approaches may not be the complete answer, several innovative techniques and geometries have been tried and included in this report. Many researchers are using a combination of in-situ and ex-situ tests, involving a variety of disciplines and multiple steps to compile a range of diagnostic tools, as well as data acquisition and analysis equipment, which can be adopted to the SOFC technology. This has merit, but requires extensive cooperation between all involved throughout all the stages of the product development. These measurement tools will enable analysis of degradation mechanics leading to development of prognostic tools that can be used to analyze fuel cells and balance of plant (BOP) systems during research and development, subsequently minimizing operating costs and enhancing overall system efficiency. v

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Planar solid oxide fuel cells: the Australian experience and outlook

Cited by 19 publications

References 0 publications

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC

Simulation and Sensitivity Analysis for Various Geometries and Optimization of Solid Oxide Fuel Cells: A Review

High Temperature Ceramic Fuel Cell Measurement and Diagnostics for Application to Solid Oxide Fuel Cell Systems

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Planar solid oxide fuel cells: the Australian experience and outlook

Cited by 19 publications

References 0 publications

Slip‐Cast Ce0.8Sm0.2O1.9 Cone‐Shaped SOFC

Slip‐Cast Ce0.8Sm0.2O1.9 Cone‐Shaped SOFC

Simulation and Sensitivity Analysis for Various Geometries and Optimization of Solid Oxide Fuel Cells: A Review

High Temperature Ceramic Fuel Cell Measurement and Diagnostics for Application to Solid Oxide Fuel Cell Systems

Contact Info

Product

Resources

About

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC

Slip‐Cast Ce_0.8Sm_0.2O_1.9 Cone‐Shaped SOFC