Brisbane, Australia

Ceramic Fuel Cells Ltd.
Brisbane, Australia

Ceramic Fuel Cells Ltd is an Australian fuel cell technology company, based in Melbourne. The company produces the "BlueGen" gas-to-electricity generators. CFCL's develops solid oxide fuel cell technology to provide reliable, energy efficient, high quality, and low-emission electricity from natural gas and renewable fuels. CFCL is developing SOFC products for small-scale on-site micro combined heat and power and distributed generation units that co-generate electricity and heat for domestic use. Wikipedia.

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Agency: European Commission | Branch: FP7 | Program: JTI-CP-FCH | Phase: SP1-JTI-FCH-3.1 | Award Amount: 3.86M | Year: 2010

The state of health of any SOFC system is currently difficult to evaluate, which makes it difficult to respond to a fault or degradation with the appropriate counter measure, to ensure the required reliability level. Therefore, the GENIUS project aims to develop a GENERIC algorithm, based on a validated diagnostic GENERIC approach. This algorithm would only use process values (normal measurements and system control input parameters) and the approach would allow all SOFC developers to use and implement the algorithm in their respective systems according to their specific constraints. To guarantee the GENERIC character of the algoithm, stacks and systems from four different manufacturers will be tested using commonly defined test plan that will be based on the Design Of Experiment method. Three different types of models will be evaluated in parallel by four different academic institutions in order to define the optimal tool for fault detection and degradation identification. This will be done taking into account both on board diagnostic and off-line diagnostic requirements. The diagnosis would generate a set of indicators able to quantify either the drift or the difference of the actual status with respect to nominal or expected performance. A diagnostic hardware integrating the best algorithm will be developed and validated in two different SOFC systems. Finally, physical parameters and interactions will be correlated with degradation mechanisms. This correlation will allow the definition of either counter measures (in case of fault or degradation) or of a more optimal operation point. This will make it possible to reduce maintenance to yearly intervals. It may also help reach a target of tens of thousands hours for stack or system operation lifetime. Finally, it is important to mention that most of participants of the GENIUS project are members of the FCH Joint Undertaking Initiative.

Zhao L.,Curtin University Australia | Drennan J.,University of Queensland | Kong C.,University of New South Wales | Amarasinghe S.,Ceramic Fuel Cells Ltd. | Jiang S.P.,Curtin University Australia
Journal of Materials Chemistry A | Year: 2014

La0.6Sr0.4Co0.2Fe0.8O 3-δ, (LSCF) perovskite oxide is one of the most important cathode materials in the development of intermediate temperature solid oxide fuel cells (IT-SOFCs), but vulnerable to chromium deposition and poisoning in the presence of gaseous chromium species from the chromia-forming metallic interconnect. Despite extensive studies on Cr deposition on SOFC cathode materials, there is a lack of direct evidence on the surface chemistry and Cr deposition. Here, the fundamental relationship between the surface segregation and Cr deposition of LSCF cathodes is studied on dense LSCF bar samples using a dual beam high resolution focused ion beam (FIB) and a high resolution scanning electron microscope coupled with EDS. FIB-EDS mapping results clearly indicate the segregation of SrO and Co3O4 particles on the LSCF surface after annealing at 800 °C for 96 h. Cr deposition occurs preferentially on the segregated SrO but not on Co3O4. The fundamental reason for the selective and preferential Cr deposition on the segregated SrO is the exclusion effect of the presence of SrO on the reactivity between gaseous Cr species and segregated Co3O4, inhibiting the Cr deposition on the segregated Co3O4 particles. © 2014 the Partner Organisations.

Payne R.,Ceramic Fuel Cells Ltd. | Love J.,Ceramic Fuel Cells Ltd. | Kah M.,Ceramic Fuel Cells Ltd.
ECS Transactions | Year: 2011

Ceramic Fuel Cells Limited is manufacturing the BlueGen product that is being sold in a number of markets around the world. This paper describes the consistency achieved for all BlueGen units manufactured in 2010 delivering 60% AC electrical efficiency (LHV) on start up. The consistency in performance over time is described and 55% efficiency is achieved after 1 year operation. The power modulation and turn down performance are also described with greater that 50% AC electrical efficiency (LHV) achieved as low as 750 W exported power. ©The Electrochemical Society.

Chen K.,Curtin University Australia | Ai N.,Curtin University Australia | Lievens C.,Curtin University Australia | Love J.,Ceramic Fuel Cells Ltd. | Jiang S.P.,Curtin University Australia
Electrochemistry Communications | Year: 2012

The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode. © 2012 Elsevier B.V. All rights reserved.

Zhao L.,Curtin University Australia | Amarasinghe S.,Ceramic Fuel Cells Ltd. | Jiang S.P.,Curtin University Australia
Electrochemistry Communications | Year: 2013

The electrochemical activities and chromium tolerances are studied on single phase La0.6Sr0.4Co0.2Fe 0.8O3 - δ (LSCF) and Gd0.1Ce 0.9O1.95 (GDC) impregnated LSCF (GDC-LSCF) cathodes of solid oxide fuel cells (SOFCs). GDC-LSCF electrode shows a significantly reduced electrode polarization resistance and more stable performance for the O 2 reduction reaction in the presence of chromia-forming metallic interconnect as compared to that on LSCF. The results indicate that the impregnated GDC nanoparticles serve as a barrier layer to enhance the resistance and tolerance of LSCF towards chromium deposition and poisoning. © 2013 Elsevier B.V.

Ahmed K.,Ceramic Fuel Cells Ltd. | Foger K.,Ceramic Fuel Cells Ltd.
Industrial and Engineering Chemistry Research | Year: 2010

Fuel processing for fuel cells has received considerable attention in the literature. However, most of the reported work focused on the production of hydrogen. With internal reforming fuel cells, the fuel processor can operate at relatively low temperatures to generate a mixture of gases containing hydrogen, methane, and the carbon oxides. The primary challenge for any fuel cell system is to select the most effective reforming scheme for a particular application considering factors such as electric efficiency, operating parameters, system complexity, and costs. In this paper we briefly review fuel processing technologies for fuel cells with particular emphasis on fuel pretreatment for internal reforming fuel cells, and discuss concepts and investigations we have pursued at Ceramic Fuel Cells, Ltd. (CFCL) on processing of gaseous and liquid hydrocarbons for application in CFCL's solid oxide fuel cells. © 2010 American Chemical Society.

Hosseini S.,Curtin University Australia | Ahmed K.,Ceramic Fuel Cells Ltd. | Tade M.O.,Curtin University Australia
Journal of Power Sources | Year: 2013

A fully coupled CFD model of a direct internal reforming single cell SOFC stack previously designed by Ceramic Fuel Cell Ltd (CFCL) has been developed. In this model, an innovative solution technique for accelerating finite volume treatment of the electrodes as two distinct layers, a diffusion layer and a catalyst layer, is taken to analyse the combined effects of the macro/microstructural parameters on distribution of fields and each of the reactions involved in the process. To assess the simulation results, the model is not only evaluated with the CFCL experimental data that was reported from the similar geometry, but it is also assessed for the effects of the reforming and water gas shift reactions. It is found that a 3D model is more representative of the global reforming reaction rate. Furthermore, distributions of the key parameters along different spatial domains disclose the complex interaction between the anode flow field design and microstructural parameters of the anode diffusion layer. In fact, an optimal set of the anode microstructure that promotes the reforming reaction rate will not automatically result in improved SOFC performance. The developed model is a powerful tool to study complex fuel cell related problems and to optimize fuel cells' structure. Crown Copyright © 2013 Published by Elsevier B.V. All rights reserved.

Ceramic Fuel Cells Ltd. | Date: 2011-04-15

A fuel cell stack comprising multiple arrays of one or more fuel cells, each comprising an electrolyte layer, an anode layer and a cathode layer; gas separator plates between adjacent fuel cells; and oxidant gas distribution passages and fuel gas distribution passages between adjacent fuel cells; and gas separators opening to the cathode layers and the anode layers, respectively, of the fuel cells. The fuel cell arrays comprise at least first stage fuel cell arrays having associated first fuel gas distribution passages to receive fuel gas from one or more fuel gas supply manifolds and second stage fuel cell arrays having associated second fuel gas distribution passages which receive fuel exhaust from the fuel cells of the first stage fuel cell arrays. The second stage fuel cell arrays are interleaved in the stack between first stage fuel cell arrays to improve thermal gradients. Other interleaving arrangements are possible.

Ceramic Fuel Cells Ltd. | Date: 2010-07-09

A brazing process for joining at least two components having ceramic oxide surfaces is described. The brazing filler used in the process comprises a noble metal and a second metal. During the brazing process, the filler is heated in an oxidising atmosphere such as air. The heating is undertaken until at least the noble metal is molten. The molten filler comprises a surface oxide formed from a stable, non-volatile oxide of the second metal that does not significantly alloy with the molten noble metal. The molten filler is able to wet the ceramic oxide surfaces and is subsequently cooled between them to thereby join them together.

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