The balance of plant bop and power electronics systems are treated as separate local units, and local controllers are designed for each unit using established linear techniques. This chapter aims to give the reader an overview of solid oxide fuel cell sofc technology in terms of both the fundamental theory and real world applications. Monitoring the microstructural evolution of solid oxide fuel cell anodes. Modeling and structural optimization of solid oxide fuel cells.
Solid oxide fuel cells represent an energy conversion device with high efficiency and fuel versatility but continue to suffer from cost and durability issues, hindering commercial viability. Most of the present fuel cell systems use hydrogen as fuel, which is the product of natural gas through endothermic steam reforming reaction. Santos and others published ceramic materials for solid oxide fuel cells find, read and cite all the research you need on researchgate. The anode is the part of the sofc that has main focus in this thesis. Research progress on titanium based perovskite anodes for. Solid oxide fuel cell sofc is the most efficient type of the fuel cell types. Chamindi seneviratne thesis supervisor professor peter hugh middleton university of agder this masters thesis is carried out as a part of the education at the university of agder and. However, before fuelcell technology can gain a significant share of the.
However, there are several challenges concerning the sofc research. The structural characteristics, conductivity and stability have been examined. Modeling of solid oxide fuel cellgas turbine hybrid systems. Among the various sources of performance degradation, the interdiffusion between the cathode and electrolyte 2018 journal of materials chemistry a hot papers. The composition and microstructure of cathode materials has a large impact on the performance of solid oxide fuel cells sofcs. Lowering the operating temperature enables the use of cheaper. Description download a solid oxide fuel cell comments. Pdf modeling of solidoxide fuel cells researchgate. Investigating the effects of thermally driven degradation. This work is downloaded from delft university of technology. The perovskite work for the cathode uses doping strategies. Nanostructured solid oxide fuel cell electrodes unt.
Fuel cells convert chemical energy directly into electrical energy with high efficiency and low emission of pollutants. Solid oxide fuel cell sofc is a promising alternative energy source, with its advantages of high operating efficiency, fuel flexibility, low emissions and relatively low cost. Fuel cell seminar report with ppt and pdf parts of fuel cells there are 4 main parts anode cathode catalyst proton exchange membrane types of. Drawing of a solid oxide cell solid oxide fuel cells sofc use a hard, ceramic compound of metal like calcium or zirconium oxides chemically, o 2 as electrolyte. Reproduced with permission from 22, copyright elsevier. Users may download and print one copy of any publication from the public portal for the. The operating principle of the solid oxide fuel cell is illustrated in figure 1. Systems for smallscale stationary applications, ph. The solid oxide fuel cell is made up of a solid ceramic electrolyte which separates two electrodes as shown in figure. Device to produce electricity directly from oxidizing a fuel has a solidoxide or ceramic as electrolyte and in which there is cathode and anode mostly used electrolyte is a ceramic material called yttriastabilized zirconia ysz.
Evaluation of solid oxide fuel cells operating on hydrogen. Other components such as interconnects and sealings are also of great importance for the operation of an sofc but are out of the scope of this thesis. Current collectors of different materials have been tested within different conditions. Solid oxide fuel cells leverage our technology innotech alberta has a variety of technologies available for licensing. Solidoxide fuel cells sofcs promise high efficiencies in a range of fuels. Mathematical modelling of planar solid oxide fuel cells. The ability of solid oxide fuel cells sofc to directly and efficiently convert the chemical energy in hydrocarbon fuels to electricity places the technology in a unique and exciting position to play a significant role in the clean energy. An introduction to solid oxide fuel cell materials. A novel method for the control and integration of a portable hybrid solid oxide fuel cell sofc system, based on hydrocarbon fuel, is presented in this paper. Microalloying mediated segregation and interfacial oxidation of fecr alloys for solidoxide fuel cell applications thesis for the degree of doctor of science in technology to be presented with due permission for public examination and criticism in konetalo building, auditorium k1702. The data of the materials compositions and materials cost were taken from a thesis done in the university of californias laboratory by roberto. An electronic version of this dissertation is available at.
Also considered for combined heat and fuel cell power cogeneration are thermoelectric cells tec. Solid oxide electrolysis cells performance and durability. A special type of fuel cell, the solidoxide fuel cell sofc, may be able to raise efficiency to 8590%. Progress in material selection for solid oxide fuel cell. Modeling, control, and integration of a portable solid. Unlike lower temperature variants, carbon monoxide is a fuel rather than a poison, and so hydrocarbon fuels can be. Bazant for his consistent trust and support during my thesis work. Pdf a solid oxide fuel cell sofc is a solidstate energy conversion. Solid oxide fuel cells sofc is one of the most promising fuel cell systems for generating electricity in an efficient and enviroment friendly way 1. New electrolyte materials for solid oxide fuel cells. Factors such as rising environmental concerns and increasing demand for clean electrical energy are expected to be major drivers driving the market. This research was conducted to investigate the effect of hydrogen sulfide on the performance of single solid oxide fuel cells.
Solid oxide fuel cell sofc technology offers tremendous potential for highly efficient and clean power generation. Solid oxide fuel cells sofcs, the topic of this thesis, are well suited for sta. It focuses on both the cathode and electrolyte components. Schematic of custombuilt sample holders for twoelectrode acis. Current fuel cell designs are about 60% efficient, on par with many power plants, but also have the potential to climb to 80% or higher 12. Fabrication and electrochemical characterisation of micro. A novel solid oxide fuel cell anode substrateperformance. Pdf achievements and trends of solid oxide fuel cells in clean. Creates electricity through electrochemical process. To achieve that, authors from different regions and backgrounds address topics such as electrolytes, contaminants, redox cycling, gastight seals. Theoretical and experimental study of solid oxide fuel.
The high operating temperature of sofcs 700900 c has resulted in serious demerits regarding their overall performance and durability. Rational design of materials composition through controlled oxygen nonstoichiometry and defect aspects can enhance the ionic and electronic conductivities as well as the catalytic properties for oxygen reduction in the cathode. It concludes with an introduction to the various degradation mechanisms common to many fuel cell systems today, which are discussed in detail in the following chapters of this book. Solid oxide electrolysis cells performance and durability department. Pdf the main concerns in the world today, especially in the energy field, are. Direct flame solid oxide fuel cells for use in remote. She has solid and profound knowledge about the cutting edge research in sofc community, and in general electrochemistry as well, and have given me lots of useful suggestions on to set up how a reasonable model for saintgobain cell, and which electrode would potentially be the rate limiting factor. We will work with companies, from small to large, to set up mutually beneficial licensing deals.
Paircoil2 predicts the parallel coiled coil fold from sequence using pairwise residue probabilitis with the paircoil algorithm and an updated coiled coil database. The solid oxide fuel cell sofc is a class of fuel cells that is capable of generating very high levels of power at high temperatures. Report a solid oxide fuel cell please fill this form, we will try to respond as soon as possible. Modeling of solid oxide fuel cellgas turbine hybrid.
A test rig was designed and commissioned to test 5x5 cm2 cells active area. The solid oxide fuel cell sofc is produced from oxide materials, which become active for transportation of oxide ions and electro. In spite of all the beneficial features of the sofc, the propagation of ripple currents, due to nonlinear loads, is a challenging problem, as it interferes with the. Abstract the need for reducing the solid oxide fuel cell. The solid oxide fuel cell sofc offers great promise and is presently the subject of intense research activity. Technoeconomic optimal design of solid oxide fuel cell systems. Microalloying mediated segregation and interfacial. Solid oxide fuel cells illinois institute of technology. A redoxstable efficient anode for solidoxide fuel cells. Design, construction, and testing of a gasifierspecific solid oxide.
Use of active power filter to reduce the effects of. With more than 90 years in applied research and development, we are an experienced commercialization partner. Dan hennessy delphi may 15, 20 doe hydrogen and fuel. Novel anode materials for solid oxide fuel cells university of. Support delphis continued investment in the fuel cell technology accelerate the commercialization and high volume manufacture of sofc auxiliary power unit aputechnology augment the uss long term energy policy by. We reduce the complexity of an sofc to ow and reaction across a at, impermeable plate and begin by establishing a simplistic model for the incompressible.
This thesis is the result of a a research process of almost a year. Technoeconomic assessment of solid oxide fuel cells and fuel. Ruddlesdenpopper phases as solid oxide fuel cell cathodes core. A novel solid oxide fuel cell anode substrate performance and lifetime studies k. Synthesis of electrolyte and electrode materials for solid. The influence of current collector on the sudden deterioration phenomena of conventional nickelyttriastabilized zirconia composite solid oxide fuel cell sofc anodes operated in hydrogen with high humidity concentration is investigated. In this honors thesis, direct flame solid oxide fuel cells dffc were considered for their feasibility in providing a means of power generation for remote powering needs. However, its commercialization has lagged owing to the lack of longterm stability. Towards the next generation of solid oxide fuel cells. A solid oxide electrolyser cell soec is a solid oxide fuel cell set in regenerative mode for the electrolysis of water with a solid oxide, or ceramic, electrolyte to produce oxygen and hydrogen gas. Solid oxide fuel cells an overview sciencedirect topics. The test rig consists of a gas blender, a humidifier, a high temperature furnace, fuel and air manifolds and a controldata logging system. Mixedconducting oxide electrodes for solid oxide fuel cells 81.
Solid oxide fuel cell electrode characterization and. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. Unlike other fuel cells the sofc is a solidstate device which operates at elevated temperatures. Nanotechnology is utilized well in the development and improvement of the performance in solid oxide fuel cells sofcs. In this phd thesis, new materials for solid oxide fuel cells have been researched. Critical challenges in fuel cells presents in one volume the most recent research that aims at solving key issues for the deployment of sofc at a commercial scale and for a wider range of applications. One of the most promising devices for lowcarbon energy conversion is the solid oxide fuel cell sofc.
Fuel cell seminar report with ppt and pdf study mafia. Study on the influence of current collector on the sudden. Solid oxide fuel cells sofc have emerged as energy conversion devices in achieving high efficiency of over 70% with regeneration. Monitoring the microstructural evolution of solid oxide. A thesis submitted to the department of mechanical engineering in partial fulfillment of the requirements for the degree of master of science. Flow of the integrated plasma gasifiergas cleanupsolid oxide fuel cell sofc system. Improving the performance of solid oxide fuel cell systems. Modeling of solid oxide fuel cell performance with coal. Soecs can also be used to do electrolysis of co 2 to produce co and oxygen or even coelectrolysis of water and co 2 to produce syngas and oxygen. Solidoxide fuel cells solid oxide fuel cell fuel cell.
In this thesis we construct a series of mathematical models from rst principles to examine the advection, di usion and reactions of species within a planar solid oxide fuel cell sofc. Solid oxide fuel cell technology is a standard reference for all those researching this important field as well as those working in the power industry. This page contains fuel cell seminar and ppt with pdf report. Research progress on titanium based perovskite anodes for solid oxide fuel cell sofc lin peijian, miao he, wang zhouhang, chen bin, wu xuyang, yuan jinliang faculty of maritime and transportation, ningbo university, ningbo 315832, china. Performance analysis of an intermediate temperature solid oxide fuel cell submitted by bora timurkutluk in partial fulfillment of the requirements for the degree of master of science in mechanical engineering, middle east technical university by, prof. These fuel cells are small and quiet enough for household use, unlike combustion turbines. This is strongly influenced by the characteristic oxygen pressure, p o2, at which the ionic transference number of the electrolyte is 0. Sumit thakur ece seminars fuel cell seminar and ppt with pdf report.
Little is known about the complex interfacial electrochemistry and, and it is also thermochemistry. The solid oxide fuel cells market is expected to grow at a cagr of over 14% during the forecast period of 2020 2025. Design and optimization of an integrated biomass gasification and solid. Solid oxide fuel cell lifetime and reliability 1st edition. Does support of solid oxide fuel cells development will.
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