[PDF] Simulation Of A Solid Oxide Fuel Cell Heat Up Start Up Process And The Thermal Stress Analysis eBook

Author : Roberto Bove
Publisher : Springer Science & Business Media
Page : 405 pages
File Size : 45,12 MB
Release : 2008-04-20
Category : Technology & Engineering
ISBN : 1402069952

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This book fills the need for a practical reference for all scientists and graduate students who are seeking to define a mathematical model for Solid Oxide Fuel Cell (SOFC) simulation. Structured in two parts, part one presents the basic theory, and the general equations describing SOFC operation phenomena. Part two deals with the application of the theory to practical examples, where different SOFC geometries, configurations, and different phenomena are analyzed in detail.

Author : Mahdi Sharifzadeh
Publisher : Academic Press
Page : 648 pages
File Size : 14,15 MB
Release : 2019-10-31
Category : Science
ISBN : 0128154292

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Design and Operation of Solid Oxide Fuel Cells: The Systems Engineering Vision for Industrial Application presents a comprehensive, critical and accessible review of the latest research in the field of solid oxide fuel cells (SOFCs). As well as discussing the theoretical aspects of the field, the book explores a diverse range of power applications, such as hybrid power plants, polygeneration, distributed electricity generation, energy storage and waste management—all with a focus on modeling and computational skills. Dr. Sharifzadeh presents the associated risks and limitations throughout the discussion, providing a very complete and thorough analysis of SOFCs and their control and operation in power plants. The first of its kind, this book will be of particular interest to energy engineers, industry experts and academic researchers in the energy, power and transportation industries, as well as those working and researching in the chemical, environmental and material sectors. Closes the gap between various power engineering disciples by considering a diverse variety of applications and sectors Presents and reviews a variety of modeling techniques and considers regulations throughout Includes CFD modeling examples and process simulation and optimization programming guidance

Author : Jason Augustine LeMasters
Publisher :
Page : 228 pages
File Size : 11,18 MB
Release : 2004
Category : Residual stresses
ISBN :

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This research characterizes the thermal stress resulting from temperature gradients in hybrid solid oxide fuel cells that are processed using a novel oxide powder slurry technology developed at Georgia Tech. The hybrid solid oxide fuel cell is composed of metallic interconnect and ceramic electrolyte constituents with integral mechanical bonds formed during high temperature processing steps. A combined thermo-mechanical analysis approach must be implemented to evaluate a range of designs for power output and structural integrity. As an alternative to costly CFD analysis, approximate finite difference techniques that are more useful in preliminary design are developed to analyze the temperature distributions resulting from a range of fuel cell geometries and materials. The corresponding thermal stresses are then calculated from the temperature fields using ABAQUS. This model analyzes the manufacturing, start-up, and steady state operating conditions of the hybrid solid oxide fuel cell.

Author : Dario Marra
Publisher : Springer
Page : 174 pages
File Size : 48,64 MB
Release : 2016-03-07
Category : Technology & Engineering
ISBN : 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.

Author : Kevin Kendall
Publisher : Elsevier
Page : 522 pages
File Size : 34,88 MB
Release : 2015-11-21
Category : Technology & Engineering
ISBN : 0124104835

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High-temperature Solid Oxide Fuel Cells, Second Edition, explores the growing interest in fuel cells as a sustainable source of energy. The text brings the topic of green energy front and center, illustrating the need for new books that provide comprehensive and practical information on specific types of fuel cells and their applications. This landmark volume on solid oxide fuel cells contains contributions from experts of international repute, and provides a single source of the latest knowledge on this topic. A single source for all the latest information on solid oxide fuel cells and their applications Illustrates the need for new, more comprehensive books and study on the topic Explores the growing interest in fuel cells as viable, sustainable sources of energy

Author : Marta Boaro
Publisher : Springer
Page : 347 pages
File Size : 12,83 MB
Release : 2016-11-24
Category : Technology & Engineering
ISBN : 331946146X

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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 : Jarosław Milewski
Publisher : Springer Science & Business Media
Page : 228 pages
File Size : 19,19 MB
Release : 2011-03-04
Category : Mathematics
ISBN : 0857292625

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Fuel cells are widely regarded as the future of the power and transportation industries. Intensive research in this area now requires new methods of fuel cell operation modeling and cell design. Typical mathematical models are based on the physical process description of fuel cells and require a detailed knowledge of the microscopic properties that govern both chemical and electrochemical reactions. Advanced Methods of Solid Oxide Fuel Cell Modeling proposes the alternative methodology of generalized artificial neural networks (ANN) solid oxide fuel cell (SOFC) modeling. Advanced Methods of Solid Oxide Fuel Cell Modeling provides a comprehensive description of modern fuel cell theory and a guide to the mathematical modeling of SOFCs, with particular emphasis on the use of ANNs. Up to now, most of the equations involved in SOFC models have required the addition of numerous factors that are difficult to determine. The artificial neural network (ANN) can be applied to simulate an object’s behavior without an algorithmic solution, merely by utilizing available experimental data. The ANN methodology discussed in Advanced Methods of Solid Oxide Fuel Cell Modeling can be used by both researchers and professionals to optimize SOFC design. Readers will have access to detailed material on universal fuel cell modeling and design process optimization, and will also be able to discover comprehensive information on fuel cells and artificial intelligence theory.

Author : Jeongpill Ki
Publisher :
Page : pages
File Size : 42,59 MB
Release : 2013
Category : Fuel cells
ISBN :

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Solid oxide fuel cell (SOFC) systems have been recognized as the most advanced power generation system with the highest thermal efficiency with a compatibility with a wide variety of hydrocarbon fuels, synthetic gas from coal, hydrogen, etc. As a result of research focused on numerical studies for a tubular type- or a planar type-SOFC, fuel flexibility, design aspects of SOFC, materials, start-up process, and so on, SOFC technologies are remarkably being developed. Currently, most research activities are limited to a component level characterization of single fuel cell stack or material research for catalyst, electrolyte, sealing process, etc. In other words, approaches for developing an integrated SOFC system with combined heat and power (CHP)/power generation system for transient analysis have been limited. During normal operating modes of a SOFC system, optimal control of fuel and air supply and anode gas recirculation relies on accurate dynamic analysis of the entire SOFC system. With this research, integrated modeling approaches of SOFC stack with heat exchanger (HEX), compact heat exchange reformer (CHER), steam supply system, compressor or blower, ducts, etc. were introduced and developed for a power generation system. And, simulational results were validated with experimental results. The specific dynamic design tools for an integrated SOFC-based power generation system are as follows: 1) computational model for thermal dynamics of planar SOFC stack during stack heating process w/o production of electricity, 2) validation of simulational result of transient characteristics of the HEX with experimental result during the initial phase of start-up of small SOFC systems, 3) validation of simulational result of transient characteristics of the CHER with experimental result during the initial phase of start-up of small SOFC systems, and 4) development of model for dynamic communication between the developed stages out of fully integrated micro (~10kW) SOFC-based power generation systems. As a result of the researches, the computational software was developed to investigate the start-up process of SOFC without producing electricity. And, novel transient codes were developed that explain the dynamics of HEX and CHER. Test rigs for the experiment of HEX and CHER were developed. Performances of the HEX and CHER were well demonstrated experimentally and were validated with simulational results. Each developed sub-module was integrated to build up the integrated SOFC system step by step. In the final session, the integrated module was completed by including an electricity production module. The developed integrated SOFC system module provides guidance for establishing the fundamental design characteristics and a direction for choosing suitable HEX, reformer, compressor, etc.

Author : K Huang
Publisher : Elsevier
Page : 341 pages
File Size : 13,66 MB
Release : 2009-07-30
Category : Technology & Engineering
ISBN : 1845696514

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High temperature solid oxide fuel cell (SOFC) technology is a promising power generation option that features high electrical efficiency and low emissions of environmentally polluting gases such as CO2, NOox and SOx. It is ideal for distributed stationary power generation applications where both high-efficiency electricity and high-quality heat are in strong demand. For the past few decades, SOFC technology has attracted intense worldwide R&D effort and, along with polymer electrolyte membrane fuel cell (PEMFC) technology, has undergone extensive commercialization development. This book presents a systematic and in-depth narrative of the technology from the perspective of fundamentals, providing comprehensive theoretical analysis and innovative characterization techniques for SOFC technology. The book initially deals with the basics and development of SOFC technology from cell materials to fundamental thermodynamics, electronic properties of solids and charged particle transport. This coverage is extended with a thorough analysis of such operational features as current flow and energy balance, and on to voltage losses and electrical efficiency. Furthermore, the book also covers the important issues of fuel cell stability and durability with chapters on performance characterization, fuel processing, and electrode poisoning. Finally, the book provides a comprehensive review for SOFC materials and fabrication techniques. A series of useful scientific appendices rounds off the book. 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. Provides a comprehensive review of solid oxide fuel cells from history and design to chemistry and materials development Presents analysis of operational features including current flow, energy balance, voltage losses and electrical efficiency Explores fuel cell stability and durability with specific chapters examining performance characterization, fuel processing and electrode poisoning