Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy
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Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy
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Author : André Leonide
language : en
Publisher: KIT Scientific Publishing
Release Date : 2010
Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy written by André Leonide and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Technology (General) categories.
A high resolution electrochemical impedance spectroscopy study on anode supported single cells (ASC) is presented. The cells were characterised over a broad range of operating conditions, including different temperatures, current densities and various cathode and anode gas compositions.The analysis of the distribution of relaxation times combined with the numeric accuracy of a CNLS fit enabled the identification of five different processes contributing to the total polarisation loss of an ASC.
Impedance In Electrochemistry From Analytical Applications To Mechanistic Speculation 2
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Author : P. Vanýsek
language : en
Publisher: The Electrochemical Society
Release Date : 2009-10
Impedance In Electrochemistry From Analytical Applications To Mechanistic Speculation 2 written by P. Vanýsek and has been published by The Electrochemical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10 with Science categories.
Impedance spectroscopy, as a method, is becoming a fixture of the instrumental arsenal. However, due to its complexity, the interpretation of impedance results is far from commonplace. The aim of this symposium was to provide forum for new approaches and uses (the Analytical Speculations part) as well as for rigorous attempt at the interpretation, going all the way to the fundamental mechanistic cause and effect.
The Electrochemical Oxidation Of H2 And Co At Patterned Ni Anodes Of Sofcs
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Author : Annika Utz
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-08-22
The Electrochemical Oxidation Of H2 And Co At Patterned Ni Anodes Of Sofcs written by Annika Utz and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-22 with Technology & Engineering categories.
In this work, a deeper understanding of the electrochemical oxidation at SOFC anodes was gained by the experimental characterization of patterned Ni anodes in H2-H2O and CO-CO2 atmosphere. By high resolution data analysis, the Line Specific Resistance attributed to charge transfer and its dependencies on gas composition, temperature and polarization voltage were identified. Furthermore, the comparison of the performance of patterned and cermet anodes was enabled using a transmission line model.
Microstructural Characterisation Modelling And Simulation Of Solid Oxide Fuel Cell Cathodes
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Author : Joos, Jochen
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-06-29
Microstructural Characterisation Modelling And Simulation Of Solid Oxide Fuel Cell Cathodes written by Joos, Jochen and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-29 with categories.
Physically Based Impedance Modelling Of Lithium Ion Cells
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Author : Illig, Joerg
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-09-19
Physically Based Impedance Modelling Of Lithium Ion Cells written by Illig, Joerg and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-19 with Technology & Engineering categories.
In this book, a new procedure to analyze lithium-ion cells is introduced. The cells are disassembled to analyze their components in experimental cell housings. Then, Electrochemical Impedance Spectroscopy, time domain measurements and the Distribution function of Relaxation Times are applied to obtain a deep understanding of the relevant loss processes. This procedure yields a notable surplus of information about the electrode contributions to the overall internal resistance of the cell.
Finite Element Method Fem Model And Performance Analysis Of Solid Oxide Fuel Cells
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Author : Geisler, Helge Ingolf
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-07-10
Finite Element Method Fem Model And Performance Analysis Of Solid Oxide Fuel Cells written by Geisler, Helge Ingolf and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-10 with Technology & Engineering categories.
This work presents a numerical FEM framework, capable of predicting SOFC performance under technically relevant, planar stack contacting conditions. A high level of confidence in the model predictions is supplied by using exclusively experimentally determined material/kinetic parameters and by a comprehensive validation. The presented model aids SOFC stack development by pre-evaluating possible material choices and design combinations for cells/interconnectors without any experimental effort.
Advances In Medium And High Temperature Solid Oxide Fuel Cell Technology
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Author : Marta Boaro
language : en
Publisher: Springer
Release Date : 2016-11-24
Advances In Medium And High Temperature Solid Oxide Fuel Cell Technology written by Marta Boaro and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-24 with Technology & Engineering categories.
In this book well-known experts highlight cutting-edge research priorities and discuss the state of the art in the field of solid oxide fuel cells giving an update on specific subjects such as protonic conductors, interconnects, electrocatalytic and catalytic processes and modelling approaches.Fundamentals and advances in this field are illustrated to help young researchers address issues in the characterization of materials and in the analysis of processes, not often tackled in scholarly books.
Characterization And Modeling Of Electrochemical Energy Conversion Systems By Impedance Techniques
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Author : Dino Klotz
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-07-30
Characterization And Modeling Of Electrochemical Energy Conversion Systems By Impedance Techniques written by Dino Klotz and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-30 with Technology & Engineering categories.
This thesis introduces (i) amendments to basic electrochemical measurement techniques in the time and frequency domain suitable for electrochemical energy conversion systems like fuel cells and batteries, which enable shorter measurement times and improved precision in both measurement and parameter identification, and (ii) a modeling approach that is able to simulate a technically relevant system just by information gained through static and impedance measurements of laboratory size cells.
Model Based Interpretation Of The Performance And Degradation Of Reformate Fueled Solid Oxide Fuel Cells
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Author : Alexander Kromp
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-05-12
Model Based Interpretation Of The Performance And Degradation Of Reformate Fueled Solid Oxide Fuel Cells written by Alexander Kromp and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-12 with Technology & Engineering categories.
Solid oxide fuel cells offer great prospects for the sustainable, clean and safe conversion of various fuels into electrical energy. In this thesis, the performance-determining loss processes for the cell operation on reformate fuels are elucidated via electrochemical impedance spectroscopy. Model-based analyses reveal the electrochemical fuel oxidation mechanism, the coupling of fuel gas transport and reforming chemistry and the impact of fuel impurities on the degradation of each loss process.
Electrochemical Performance And Stability Of Ba Sr Co Fe O For Oxygen Transport Membranes
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Author : Niedrig, Christian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2015-12-23
Electrochemical Performance And Stability Of Ba Sr Co Fe O For Oxygen Transport Membranes written by Niedrig, Christian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-23 with Technology (General) categories.
Mixed ionic-electronic conducting (MIEC) ceramics as oxygen transport membranes (OTMs) can provide high oxygen permeation rates at comparably low energy demands. For this purpose, Ba?.?Sr?.?Co?.?Fe?.?O??? (BSCF) shows the best performance under ideal operating conditions. Thermal and chemical stability investigations, electrical behavior ?(T,pO?,t), and oxygen exchange parameter extraction by means of electrical conductivity relaxation resulted in a far better understanding of the BSCF system.