Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy
Download Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy full books in PDF, epub, and Kindle. Read online free Sofc Modelling And Parameter Identification By Means Of Impedance Spectroscopy ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
| Author | : André Leonide |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 168 |
| Release | : 2010 |
| Genre | : Technology (General) |
| ISBN | : 3866445385 |
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.
| Author | : P. Vanýsek |
| Publisher | : The Electrochemical Society |
| Total Pages | : 167 |
| Release | : 2009-10 |
| Genre | : Science |
| ISBN | : 1566777623 |
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.
| Author | : Annika Utz |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 166 |
| Release | : 2014-08-22 |
| Genre | : Technology & Engineering |
| ISBN | : 3866446861 |
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.
| Author | : Illig, Joerg |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 231 |
| Release | : 2014-09-19 |
| Genre | : Technology & Engineering |
| ISBN | : 3731502461 |
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.
| Author | : Joos, Jochen |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 246 |
| Release | : 2017-06-29 |
| Genre | : Technology (General) |
| ISBN | : 3731506254 |
This work deals with microstructural characterisation, modelling and simulation of SOFC electrodes with the goal of optimizing the electrode microstructures. Methods for a detailed electrode analysis based on focused ion beam (FIB) tomography are presented. A 3D FEM model able to perform simulations of LSCF cathodes based on 3D tomography data is shown. A model generating realistic, yet synthetic microstructures is presented that enables the optimization of microstructural characteristics.
| Author | : Geisler, Helge Ingolf |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 292 |
| Release | : 2019-07-10 |
| Genre | : Technology & Engineering |
| ISBN | : 3731508958 |
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.
| Author | : Marta Boaro |
| Publisher | : Springer |
| Total Pages | : 347 |
| Release | : 2016-11-24 |
| Genre | : Technology & Engineering |
| ISBN | : 331946146X |
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.
| Author | : Dino Klotz |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 182 |
| Release | : 2014-07-30 |
| Genre | : Technology & Engineering |
| ISBN | : 3866449038 |
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.
| Author | : Alexander Kromp |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 146 |
| Release | : 2014-05-12 |
| Genre | : Technology & Engineering |
| ISBN | : 373150006X |
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.
| Author | : Weidong He |
| Publisher | : Springer |
| Total Pages | : 87 |
| Release | : 2014-09-03 |
| Genre | : Science |
| ISBN | : 3319097377 |
This book provides a comprehensive overview of contemporary research and emerging measurement technologies associated with gas transport in solid oxide fuel cells. Within these pages, an introduction to the concept of gas diffusion in solid oxide fuel cells is presented. This book also discusses the history and underlying fundamental mechanisms of gas diffusion in solid oxide fuel cells, general theoretical mathematical models for gas diffusion, and traditional and advanced techniques for gas diffusivity measurement.
