Reduced Modelling of Planar Fuel Cells

Reduced Modelling of Planar Fuel Cells

Author: Zhongjie He

Publisher: Springer

Published: 2016-12-25

Total Pages: 291

ISBN-13: 331942646X

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This book focuses on novel reduced cell and stack models for proton exchange membrane fuel cells (PEMFCs) and planar solid oxide fuel cells (P-SOFCs) that serve to reduce the computational cost by two orders of magnitude or more with desired numerical accuracy, while capturing both the average properties and the variability of the dependent variables in the 3D counterparts. The information provided can also be applied to other kinds of plate-type fuel cells whose flow fields consist of parallel plain channels separated by solid ribs. These fast and efficient models allow statistical sensitivity analysis for a sample size in the order of 1000 without prohibitive computational cost to be performed to investigate not only the individual, but also the simultaneous effects of a group of varying geometrical, material, and operational parameters. This provides important information for cell/stack design, and to illustrate this, Monte Carlo simulation of the reduced P-SOFC model is conducted at both the single-cell and stack levels.


Book Synopsis Reduced Modelling of Planar Fuel Cells by : Zhongjie He

Download or read book Reduced Modelling of Planar Fuel Cells written by Zhongjie He and published by Springer. This book was released on 2016-12-25 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on novel reduced cell and stack models for proton exchange membrane fuel cells (PEMFCs) and planar solid oxide fuel cells (P-SOFCs) that serve to reduce the computational cost by two orders of magnitude or more with desired numerical accuracy, while capturing both the average properties and the variability of the dependent variables in the 3D counterparts. The information provided can also be applied to other kinds of plate-type fuel cells whose flow fields consist of parallel plain channels separated by solid ribs. These fast and efficient models allow statistical sensitivity analysis for a sample size in the order of 1000 without prohibitive computational cost to be performed to investigate not only the individual, but also the simultaneous effects of a group of varying geometrical, material, and operational parameters. This provides important information for cell/stack design, and to illustrate this, Monte Carlo simulation of the reduced P-SOFC model is conducted at both the single-cell and stack levels.

Hybrid Systems Based on Solid Oxide Fuel Cells

Hybrid Systems Based on Solid Oxide Fuel Cells

Author: Mario L. Ferrari

Publisher: John Wiley & Sons

Published: 2017-06-12

Total Pages: 344

ISBN-13: 111903907X

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A comprehensive guide to the modelling and design of solid oxide fuel cell hybrid power plants This book explores all technical aspects of solid oxide fuel cell (SOFC) hybrid systems and proposes solutions to a range of technical problems that can arise from component integration. Following a general introduction to the state-of-the-art in SOFC hybrid systems, the authors focus on fuel cell technology, including the components required to operate with standard fuels. Micro-gas turbine (mGT) technology for hybrid systems is discussed, with special attention given to issues related to the coupling of SOFCs with mGTs. Throughout the book emphasis is placed on dynamic issues, including control systems used to avoid risk conditions. With an eye to mitigating the high costs and risks incurred with the building and use of prototype hybrid systems, the authors demonstrate a proven, economically feasible approach to obtaining important experimental results using simplified plants that simulate both generic and detailed system-level behaviour using emulators. Computational models and experimental plants are developed to support the analysis of SOFC hybrid systems, including models appropriate for design, development and performance analysis at both component and system levels. Presents models for a range of size units, technology variations, unit coupling dynamics and start-up and shutdown behaviours Focuses on SOFCs integration with mGTs in light of key constraints and risk avoidance issues under steady-state conditions and during transient operations Identifies interaction and coupling problems within the GT/SOFC environment, including exergy analysis and optimization Demonstrates an economical approach to obtaining important experimental results while avoiding high-cost components and risk conditions Presents analytical/computational and experimental tools for the efficient design and development of hardware and software systems Hybrid Systems Based on Solid Oxide Fuel Cells: Modelling and Design is a valuable resource for researchers and practicing engineers involved in fuel cell fundamentals, design and development. It is also an excellent reference for academic researchers and advanced-level students exploring fuel cell technology.


Book Synopsis Hybrid Systems Based on Solid Oxide Fuel Cells by : Mario L. Ferrari

Download or read book Hybrid Systems Based on Solid Oxide Fuel Cells written by Mario L. Ferrari and published by John Wiley & Sons. This book was released on 2017-06-12 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to the modelling and design of solid oxide fuel cell hybrid power plants This book explores all technical aspects of solid oxide fuel cell (SOFC) hybrid systems and proposes solutions to a range of technical problems that can arise from component integration. Following a general introduction to the state-of-the-art in SOFC hybrid systems, the authors focus on fuel cell technology, including the components required to operate with standard fuels. Micro-gas turbine (mGT) technology for hybrid systems is discussed, with special attention given to issues related to the coupling of SOFCs with mGTs. Throughout the book emphasis is placed on dynamic issues, including control systems used to avoid risk conditions. With an eye to mitigating the high costs and risks incurred with the building and use of prototype hybrid systems, the authors demonstrate a proven, economically feasible approach to obtaining important experimental results using simplified plants that simulate both generic and detailed system-level behaviour using emulators. Computational models and experimental plants are developed to support the analysis of SOFC hybrid systems, including models appropriate for design, development and performance analysis at both component and system levels. Presents models for a range of size units, technology variations, unit coupling dynamics and start-up and shutdown behaviours Focuses on SOFCs integration with mGTs in light of key constraints and risk avoidance issues under steady-state conditions and during transient operations Identifies interaction and coupling problems within the GT/SOFC environment, including exergy analysis and optimization Demonstrates an economical approach to obtaining important experimental results while avoiding high-cost components and risk conditions Presents analytical/computational and experimental tools for the efficient design and development of hardware and software systems Hybrid Systems Based on Solid Oxide Fuel Cells: Modelling and Design is a valuable resource for researchers and practicing engineers involved in fuel cell fundamentals, design and development. It is also an excellent reference for academic researchers and advanced-level students exploring fuel cell technology.

Analytical Modelling of Fuel Cells

Analytical Modelling of Fuel Cells

Author: Andrei A. Kulikovsky

Publisher: Elsevier

Published: 2010-06-29

Total Pages: 312

ISBN-13: 0444535616

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In fuel cell research, the gap between fundamental electrochemical processes and the engineering of fuel cell systems is bridged by the physical modelling of fuel cells. This relatively new discipline aims to understand the basic transport and kinetic phenomena in a real cell and stack environment, paving the way for improved design and performance. The author brings his unique approach to the analytical modeling of fuel cells to this essential reference for energy technologists. Covers recent advances and analytical solutions to a range of problems faced by energy technologists, from catalyst layer performance to thermal stability Provides detailed graphs, charts and other tools (glossary, index) to maximize R&D output while minimizing costs and time spent on dead-end research Presents Kulikovsky’s signature approach (and the data to support it)—which uses "simplified" models based on idealized systems, basic geometries, and minimal assumptions—enabling qualitative understanding of the causes and effects of phenomena


Book Synopsis Analytical Modelling of Fuel Cells by : Andrei A. Kulikovsky

Download or read book Analytical Modelling of Fuel Cells written by Andrei A. Kulikovsky and published by Elsevier. This book was released on 2010-06-29 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: In fuel cell research, the gap between fundamental electrochemical processes and the engineering of fuel cell systems is bridged by the physical modelling of fuel cells. This relatively new discipline aims to understand the basic transport and kinetic phenomena in a real cell and stack environment, paving the way for improved design and performance. The author brings his unique approach to the analytical modeling of fuel cells to this essential reference for energy technologists. Covers recent advances and analytical solutions to a range of problems faced by energy technologists, from catalyst layer performance to thermal stability Provides detailed graphs, charts and other tools (glossary, index) to maximize R&D output while minimizing costs and time spent on dead-end research Presents Kulikovsky’s signature approach (and the data to support it)—which uses "simplified" models based on idealized systems, basic geometries, and minimal assumptions—enabling qualitative understanding of the causes and effects of phenomena

Molten Carbonate Fuel Cells

Molten Carbonate Fuel Cells

Author: Kai Sundmacher

Publisher: John Wiley & Sons

Published: 2007-09-24

Total Pages: 260

ISBN-13: 3527611339

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Adopting a unique, integrated engineering approach, this text simultaneously covers all aspects of design and operation, process analysis, optimization, monitoring and control. It clearly presents the multiple advantages of molten carbonate fuel cells for the efficient conversion of energy, and also includes recent developments in this innovative technology. The whole is rounded off by an appendix featuring benchmark problems with equations and parameters. Vital reading for process, chemical and power engineers, as well as those working in power technology, chemists and electrochemists, materials scientists, and energy-supplying companies.


Book Synopsis Molten Carbonate Fuel Cells by : Kai Sundmacher

Download or read book Molten Carbonate Fuel Cells written by Kai Sundmacher and published by John Wiley & Sons. This book was released on 2007-09-24 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adopting a unique, integrated engineering approach, this text simultaneously covers all aspects of design and operation, process analysis, optimization, monitoring and control. It clearly presents the multiple advantages of molten carbonate fuel cells for the efficient conversion of energy, and also includes recent developments in this innovative technology. The whole is rounded off by an appendix featuring benchmark problems with equations and parameters. Vital reading for process, chemical and power engineers, as well as those working in power technology, chemists and electrochemists, materials scientists, and energy-supplying companies.

Dynamic Modeling and Predictive Control in Solid Oxide Fuel Cells

Dynamic Modeling and Predictive Control in Solid Oxide Fuel Cells

Author: Biao Huang

Publisher: John Wiley & Sons

Published: 2013-02-18

Total Pages: 345

ISBN-13: 0470973919

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The high temperature solid oxide fuel cell (SOFC) is identified as one of the leading fuel cell technology contenders to capture the energy market in years to come. However, in order to operate as an efficient energy generating system, the SOFC requires an appropriate control system which in turn requires a detailed modelling of process dynamics. Introducting state-of-the-art dynamic modelling, estimation, and control of SOFC systems, this book presents original modelling methods and brand new results as developed by the authors. With comprehensive coverage and bringing together many aspects of SOFC technology, it considers dynamic modelling through first-principles and data-based approaches, and considers all aspects of control, including modelling, system identification, state estimation, conventional and advanced control. Key features: Discusses both planar and tubular SOFC, and detailed and simplified dynamic modelling for SOFC Systematically describes single model and distributed models from cell level to system level Provides parameters for all models developed for easy reference and reproducing of the results All theories are illustrated through vivid fuel cell application examples, such as state-of-the-art unscented Kalman filter, model predictive control, and system identification techniques to SOFC systems The tutorial approach makes it perfect for learning the fundamentals of chemical engineering, system identification, state estimation and process control. It is suitable for graduate students in chemical, mechanical, power, and electrical engineering, especially those in process control, process systems engineering, control systems, or fuel cells. It will also aid researchers who need a reminder of the basics as well as an overview of current techniques in the dynamic modelling and control of SOFC.


Book Synopsis Dynamic Modeling and Predictive Control in Solid Oxide Fuel Cells by : Biao Huang

Download or read book Dynamic Modeling and Predictive Control in Solid Oxide Fuel Cells written by Biao Huang and published by John Wiley & Sons. This book was released on 2013-02-18 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high temperature solid oxide fuel cell (SOFC) is identified as one of the leading fuel cell technology contenders to capture the energy market in years to come. However, in order to operate as an efficient energy generating system, the SOFC requires an appropriate control system which in turn requires a detailed modelling of process dynamics. Introducting state-of-the-art dynamic modelling, estimation, and control of SOFC systems, this book presents original modelling methods and brand new results as developed by the authors. With comprehensive coverage and bringing together many aspects of SOFC technology, it considers dynamic modelling through first-principles and data-based approaches, and considers all aspects of control, including modelling, system identification, state estimation, conventional and advanced control. Key features: Discusses both planar and tubular SOFC, and detailed and simplified dynamic modelling for SOFC Systematically describes single model and distributed models from cell level to system level Provides parameters for all models developed for easy reference and reproducing of the results All theories are illustrated through vivid fuel cell application examples, such as state-of-the-art unscented Kalman filter, model predictive control, and system identification techniques to SOFC systems The tutorial approach makes it perfect for learning the fundamentals of chemical engineering, system identification, state estimation and process control. It is suitable for graduate students in chemical, mechanical, power, and electrical engineering, especially those in process control, process systems engineering, control systems, or fuel cells. It will also aid researchers who need a reminder of the basics as well as an overview of current techniques in the dynamic modelling and control of SOFC.

Progress in Industrial Mathematics at ECMI 2004

Progress in Industrial Mathematics at ECMI 2004

Author: Alessandro Di Bucchianico

Publisher: Springer Science & Business Media

Published: 2006-01-09

Total Pages: 691

ISBN-13: 3540280731

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ECMI has a brand name in Industrial Mathematics and organises successful biannual conferences. This time, the conference on Industrial Mathematics held in Eindhoven in June 2004 Mathematics focused on Aerospace, Electronic Industry, Chemical Technology, Life Sciences, Materials, Geophysics, Financial Mathematics and Water flow. The majority of the invited talks on these topics can be found in these proceedings. Apart from these lectures, a large number of contributed papers and minisymposium papers are included here. They give an interesting (and impressive) overview of the important place mathematics has achieved in solving all kinds of problems met in industry, and commerce in particular.


Book Synopsis Progress in Industrial Mathematics at ECMI 2004 by : Alessandro Di Bucchianico

Download or read book Progress in Industrial Mathematics at ECMI 2004 written by Alessandro Di Bucchianico and published by Springer Science & Business Media. This book was released on 2006-01-09 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt: ECMI has a brand name in Industrial Mathematics and organises successful biannual conferences. This time, the conference on Industrial Mathematics held in Eindhoven in June 2004 Mathematics focused on Aerospace, Electronic Industry, Chemical Technology, Life Sciences, Materials, Geophysics, Financial Mathematics and Water flow. The majority of the invited talks on these topics can be found in these proceedings. Apart from these lectures, a large number of contributed papers and minisymposium papers are included here. They give an interesting (and impressive) overview of the important place mathematics has achieved in solving all kinds of problems met in industry, and commerce in particular.

Reduced-order Modeling and Control of PEM Fuel Cells Via Balancing Transformation and Singular Perturbations

Reduced-order Modeling and Control of PEM Fuel Cells Via Balancing Transformation and Singular Perturbations

Author: Kliti Kodra

Publisher:

Published: 2012

Total Pages: 51

ISBN-13:

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Fuel cell systems are considered important clean energy sources with great potential for the future. The mathematical models of fuel cell - fuel processing systems (FC - FPS) are quite complex therefore it is important to simplify them for efficient study. In this thesis we apply order-reduction techniques to replace a large scale model with a much smaller one while still retaining the original behavior. Two order-reduction techniques, namely, the balancing transformation and balancing residualization applied to an 18th-order FC - FPS model are investigated in the first part of the study. The results show that the reduced system even down to 5th-order still retains the original dynamics. In the second part of the thesis we demonstrate how to put linear system in singularly perturbed form and then investigate the approximate gramians and balancing transformation of the reduced-order system. For the linear singularly perturbed system in explicit form we provide a method to evaluate the exact gramians in terms of pure slow and pure fast reduced-order Lyapunov algebraic equations and improve the approximate method available in the control literature for order-reduction of singularly perturbed systems via balancing transformation.


Book Synopsis Reduced-order Modeling and Control of PEM Fuel Cells Via Balancing Transformation and Singular Perturbations by : Kliti Kodra

Download or read book Reduced-order Modeling and Control of PEM Fuel Cells Via Balancing Transformation and Singular Perturbations written by Kliti Kodra and published by . This book was released on 2012 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel cell systems are considered important clean energy sources with great potential for the future. The mathematical models of fuel cell - fuel processing systems (FC - FPS) are quite complex therefore it is important to simplify them for efficient study. In this thesis we apply order-reduction techniques to replace a large scale model with a much smaller one while still retaining the original behavior. Two order-reduction techniques, namely, the balancing transformation and balancing residualization applied to an 18th-order FC - FPS model are investigated in the first part of the study. The results show that the reduced system even down to 5th-order still retains the original dynamics. In the second part of the thesis we demonstrate how to put linear system in singularly perturbed form and then investigate the approximate gramians and balancing transformation of the reduced-order system. For the linear singularly perturbed system in explicit form we provide a method to evaluate the exact gramians in terms of pure slow and pure fast reduced-order Lyapunov algebraic equations and improve the approximate method available in the control literature for order-reduction of singularly perturbed systems via balancing transformation.

Progress in Clean Energy, Volume 2

Progress in Clean Energy, Volume 2

Author: Ibrahim Dincer

Publisher: Springer

Published: 2015-10-28

Total Pages: 1160

ISBN-13: 3319170317

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This expansive reference provides readers with the broadest available single-volume coverage of leading-edge advances in the development and optimization of clean energy technologies. From innovative biofuel feed stocks and processing techniques, to novel solar materials with record-breaking efficiencies, remote-sensing for offshore wind turbines to breakthroughs in high performance PEM fuel cell electrode manufacturing, phase change materials in green buildings to bio sorption of pharmaceutical pollutants, the myriad exciting developments in green technology described in this book will provide inspiration and information to researchers, engineers and students working in sustainability around the world.


Book Synopsis Progress in Clean Energy, Volume 2 by : Ibrahim Dincer

Download or read book Progress in Clean Energy, Volume 2 written by Ibrahim Dincer and published by Springer. This book was released on 2015-10-28 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This expansive reference provides readers with the broadest available single-volume coverage of leading-edge advances in the development and optimization of clean energy technologies. From innovative biofuel feed stocks and processing techniques, to novel solar materials with record-breaking efficiencies, remote-sensing for offshore wind turbines to breakthroughs in high performance PEM fuel cell electrode manufacturing, phase change materials in green buildings to bio sorption of pharmaceutical pollutants, the myriad exciting developments in green technology described in this book will provide inspiration and information to researchers, engineers and students working in sustainability around the world.

Recent Developments in Computer Modeling of Powder Metallurgy Processes

Recent Developments in Computer Modeling of Powder Metallurgy Processes

Author: Antonios Zavaliangos

Publisher: IOS Press

Published: 2001

Total Pages: 298

ISBN-13: 9781586030940

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This book contains 25 papers from the NATO Advanced Research Workshop on Recent Advances of Computer Modeling of Powder Metallurgy Processes. The papers address cold compaction, sintering, high-temperature compaction, processing modeling, and processes and materials. The integration of mechanical and physical aspects of P/M processes is emphasized. Contributors include researchers from Europe, the United States, Korea, and Japan. Author index only. c. Book News Inc


Book Synopsis Recent Developments in Computer Modeling of Powder Metallurgy Processes by : Antonios Zavaliangos

Download or read book Recent Developments in Computer Modeling of Powder Metallurgy Processes written by Antonios Zavaliangos and published by IOS Press. This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 25 papers from the NATO Advanced Research Workshop on Recent Advances of Computer Modeling of Powder Metallurgy Processes. The papers address cold compaction, sintering, high-temperature compaction, processing modeling, and processes and materials. The integration of mechanical and physical aspects of P/M processes is emphasized. Contributors include researchers from Europe, the United States, Korea, and Japan. Author index only. c. Book News Inc

Models for Solid Oxide Fuel Cell Systems

Models for Solid Oxide Fuel Cell Systems

Author: Dario Marra

Publisher: Springer

Published: 2016-03-07

Total Pages: 174

ISBN-13: 1447156587

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This book presents methodologies suitable for the optimal design of control and diagnosis strategies for Solid Oxide Fuel Cell (SOFC) systems. One key feature of the methodologies presented is the use of modeling tools with an ideal balance between accuracy and computational burden. Particular emphasis is given to the useful combination of models within a hierarchical framework to reduce the experimental efforts required for characterization and testing. Such tools are proven to be highly effective for SOFC systems destined for both residential and transportation applications. Throughout the book, optimization is always conceived in such a way so as to allow the SOFC systems to work efficiently while guaranteeing safe thermal operation, as well as an extended lifetime. This book is aimed at scientists and engineers involved in the design of marketable SOFC systems. It gathers the knowledge and experience derived from other research and industry practice for which control and diagnosis have proven to be the main keys to success and market penetration.


Book Synopsis Models for Solid Oxide Fuel Cell Systems by : Dario Marra

Download or read book Models for Solid Oxide Fuel Cell Systems written by Dario Marra and published by Springer. This book was released on 2016-03-07 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents methodologies suitable for the optimal design of control and diagnosis strategies for Solid Oxide Fuel Cell (SOFC) systems. One key feature of the methodologies presented is the use of modeling tools with an ideal balance between accuracy and computational burden. Particular emphasis is given to the useful combination of models within a hierarchical framework to reduce the experimental efforts required for characterization and testing. Such tools are proven to be highly effective for SOFC systems destined for both residential and transportation applications. Throughout the book, optimization is always conceived in such a way so as to allow the SOFC systems to work efficiently while guaranteeing safe thermal operation, as well as an extended lifetime. This book is aimed at scientists and engineers involved in the design of marketable SOFC systems. It gathers the knowledge and experience derived from other research and industry practice for which control and diagnosis have proven to be the main keys to success and market penetration.