BOSIO , Barbara

Molten carbonate fuel cells (MCFCs) have received a great deal of attention in recent years and are now at a pre-commercial stage. In this work, referring to the simulation experience of the Department of Environmental Engineering of the University of Genoa (DIAM), the process analysis of a reference 500kW MCFC plant will be presented. The new...

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This work proposes the use of a rigorous approach to the analysis of the fuel-cell diffusive resistances not only at the commercial scale, but also at the laboratory one. The attention used experimentally for checking diffusion resistances in electrodes, cells and stacks should imply the same attention in the corresponding data analysis...

In the first part of this work a rationalisation and a generalisation of the approach to the analysis of the diffusive resistances in laboratory-scale fuel cells and electrodes was recommended and some interpretation tools for the purpose were suggested and some simple reference cases discussed. This second part is mainly devoted to some...

This paper presents our analysis of the mass transfer phenomena in fuel cells. Our attention was specifically focused on the parameter identification problems (briefly identification problems) related to the interpretation of the experimental data on the limit current. Two factors work together to make the interpretation of the limit current...

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IGCC (Integrated Gasification Combined Cycle) power plants look promising for the environmentally- friendly, large-scale production of electrical energy from low-cost fossil feedstocks such as coal or refinery residues. In IGCC plants hydrogen is an intermediate product, as a syngas component, between the thermochemical section and the power...

The steady-state model of a molten carbonate fuel cell (MCFC) energy plant can be formulated with differing degrees of detail and implemented within any of the frameworks available today, but it is difficult to obtain an efficient, lean, robust simulation tool also capable of providing sensitivities. If such a tool were available, there would...

Molten Carbonate Fuel Cells (MCFCs) can be used for concentration of carbon dioxide in Natural Gas Combined Cycles (NGCCs) exhaust gas, at the same time increasing electrical energy: when used in combination with Gas Separation Membranes (GSMs) for final segregation of CO2, they constitute an interesting carbon capture solution. This paper...

Abstract Previous studies at the plant scale have shown that thermal management is a crucial point in molten carbonate fuel cell operation optimisation. At the local scale, the principal mechanisms controlling the temperature map on the cell plane have been analysed and it has been shown that the fluid dynamics of the anodic and cathodic gases...

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Transport is an important feature of the CCS process as the CO2 quality necessary for the specific transport system may influence the choice of the capture technology and its limit performance requirements. The knowledge of the thermodynamic properties of CO2-mixtures has an important role in this, however a suitable equation of state under...

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We have studied the feasibility of building a biomass gasification plant with an innovative spouted bed reactor for distributed energy production. The process was simulated using a thermodynamic approach (concentrated parameter model) using LIBPF, a C++ process modelling library. A nominal size of about 100kW total thermal power was...

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gas temperature of at least 855K is necessary to guarantee good ionic conduction inside the cells. Maximum local temperatures higher than 960K should be avoided because they can cause problems such as electrolyte loss and corrosion. The first limit can easily be managed, while the second can only be managed through taking many...

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The aim of this work is to improve the semi-empirical MCFC kinetics model previously developed by the authors for laboratory and industrial simulation to make it applicable to a wider range of feeding compositions. New parameters are taken into account and identified to describe O2 and cathode induced flux effects, which were neglected in the...

The use of biomass for the production of electrical energy is a promising technological solution for those countries where there are problems with the disposal of agricultural waste and/or the production of lowcost energy. The gasification and/or pyrolysis of the biomass produces a gas rich in hydrogen that can be used in a fuel cell system to...

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Aim of this work is to focus attention on how the concentration polarization, in all electrochemistry applications, is often formulated on the basis of only thermodynamic statements and how it should be written in a kinetic more consistent expression. Moreover, the application of this study to the analysis of molten carbonate fuel cell (MCFC)...

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Often, power plants and industrial production plants – large point sources of CO2 - are situated at long distances from storage locations, thus transportation of the resulting CO2-rich streams, containing small amounts of impurities, is required from the point of capture to the storage site, and making it very important to understand the...