This book consists of the nine sections: i) the first three sections are related to polymeric electrolyte composites; ii) the next two sections relate to gas diffusion layers (GDLs); iii) the next two sections relate to membrane¬–electrode assembly (MEA); iv) and the final two sections deal with the numerical simulation of flow fields for polymer electrolyte fuel cells (PEFCs). All sections describe recent results of the study of the main components of PEFC stacks. The studies provide the underlying material, electrochemical, and/or mechanical aspects that enhance the mass transport of gas, ions (liquid), and electrons for a better performance of PEFCs and the electrochemical reactions at the triple-phase boundary in electrodes. Each study offers the fundamentals, a comprehensive background, and cutting-edge technology on the aforementioned materials and mass transport phenomena.

Hydrogen Energy Conversion and Management presents the challenges and solutions to the use of hydrogen as the significant energysource of the future. With a focus on the theory and recent technological developments, this book comprehensively addresses theproduction, storage, and real-world applications of hydrogen.Divided into four sections, Section 1 provides an overview of hydrogen technology, including environmental sustainability and thefundamentals of the hydrogen economy and future energy security. Section 2 examines the latest technologies for efficient and costeffectiveproduction of hydrogen, while Section 3 examines the latest technologies for efficient storage and transportation. Finally, Section 4 critically analyzes the challenges, solutions, and implementation prospects for a hydrogen-based fuel economy.Hydrogen Energy Conversion and Management is an invaluable resource for researchers and practitioners involved in the hydrogen economy and for graduates and research students on multidisciplinary subjects involving renewable energy. - Examines the latest technological developments in hydrogen production, storage, and transportation alongside technological solutions to their real-world applications. - Provides step-by-step guidance on new methods, processes, and simulations, supported by experimental data, including hydrogen production from waste. - Focuses on green hydrogen generation methods, including novel approaches in production and storage and practical applications.

Compendium of Hydrogen Energy: Hydrogen Energy Conversion, Volume Three is the third part of a four volume series and focuses on the methods of converting stored hydrogen into useful energy. The other three volumes focus on hydrogen production and purification; hydrogen storage and transmission; and hydrogen use, safety, and the hydrogen economy, respectively. Many experts believe that, in time, the hydrogen economy will replace the fossil fuel economy as the primary source of energy. Once hydrogen has been produced and stored, it can then be converted via fuel cells or internal combustion engines into useful energy. This volume highlights how different fuel cells and hydrogen-fueled combustion engines and turbines work. The first part of the volume investigates various types of hydrogen fuel cells, including solid oxide, molten carbonate, and proton exchange membrane. The second part looks at hydrogen combustion energy, and the final section explores the use of metal hydrides in hydrogen energy conversion. - Highlights how different fuel cells and hydrogen-fueled combustion engines and turbines work - Features input written by leading academics in the field of sustainable energy and experts from the world of industry - Examines various types of hydrogen fuel cells, including solid oxide, molten carbonate, and proton exchange membrane - Presents part of a very comprehensive compendium which, across four volumes, looks at the entirety of the hydrogen energy economy

This book provides a comprehensive analysis of various solar based hydrogen production systems. The book covers first-law (energy based) and second-law (exergy based) efficiencies and provides a comprehensive understanding of their implications. It will help minimize the widespread misuse of efficiencies among students and researchers in energy field by using an intuitive and unified approach for defining efficiencies. The book gives a clear understanding of the sustainability and environmental impact analysis of the above systems. The book will be particularly useful for a clear understanding of second law (exergy) efficiencies for various systems. It may serve as a reference book to the researchers in energy field. The definitions and concepts developed in the book will be explained through illustrative examples.

Science and Engineering of Hydrogen-Based Energy Technologies explores the generation of energy using hydrogen and hydrogen-rich fuels in fuel cells from the perspective of its integration into renewable energy systems using the most sound and current scientific knowledge. The book first examines the evolution of energy utilization and the role expected to be played by hydrogen energy technologies in the world's energy mix, not just for energy generation, but also for carbon capture, storage and utilization. It provides a general overview of the most common and promising types of fuel cells, such as PEMFCs, SOFCs and direct alcohol fuel cells. The co-production of chemical and electrolysis cells, as well as the available and future materials for fuel cells production are discussed. It then delves into the production of hydrogen from biomass, including waste materials, and from excess electricity produced by other renewable energy sources, such as solar, wind, hydro and geothermal. The main technological approaches to hydrogen storage are presented, along with several possible hydrogen energy engineering applications. Science and Engineering of Hydrogen-Based Energy Technologies's unique approach to hydrogen energy systems makes it useful for energy engineering researchers, professionals and graduate students in this field. Policy makers, energy planning and management professionals, and energy analysts can also benefit from the comprehensive overview that it provides. - Presents engineering fundamentals, commercially deployed technologies, up-and-coming developments and applications through a systemic approach - Explores the integration of hydrogen technologies in renewable energy systems, including solar, wind, bioenergy and ocean energy - Covers engineering standards, guidelines and regulations, as well as policy and social aspects for large-scale deployment of these technologies

The hydrogen economy is receiving increased attention due to concerns around the consequences of fossil fuel use, and hydrogen has great potential as a way to reduce reliance on traditional energy sources. Increased hydrogen supplies using cleaner methods are seen as essential for potential hydrogen based power systems for transportation and renewable energy conversion into fuel. Electrochemical Methods for Hydrogen Production provides a comprehensive picture of the various routes to use electricity to produce hydrogen using electrochemical science and technology. The book provides an overview of the fundamentals of electrochemical cells and performance characterisation, as well as a comparison of current applications. It also includes the various types of electrolysers currently used commercially and the range of new electrolysis processes, including photo-electrochemical, biological and thermal energy techniques. Edited by an expert in the field, this title will be of interest to graduate students and researchers in academia and industry working in energy, electrochemistry, physical chemistry and chemical engineering.

Energy Sources: Fundamentals of Chemical Conversion Processes and Applications provides the latest information on energy and the environment, the two main concerns of any progressive society that hopes to be sustainable in the future. Continuous efforts have to be exercised in both these areas by any of the developing communities, as concern over energy conversion continues to evolve due to various ecological imbalances, including climate change. This book provides the fundamentals behind all energy conversion processes, identifies future research needs, and discusses the potential application of each process in a clear-and-concise manner. It is a valuable source for both chemists and chemical engineers who are working to improve current and developing future energy sources, and is a single reference that deals with almost all energy sources for these purposes, reviewing the fundamentals, comparing the various processes, and suggesting future research directions. - Compiles, in a single source, all energy conversion processes, enabling easy evaluation and selection - Explains the science behind each conversion process and facilitates understanding - Contains many illustrations, diagrams, and tables, enabling a clear and comprehensible understanding of the pros and cons of the various processes - Includes an exhaustive glossary of all terms used in the conversion processes - Presents current status and new direction, thus enabling the planning process for future research needs - Provides a concise and comprehensive overview of all energy sources

As global demands for energy and lower carbon emissions rise, developing systems of energy conversion and storage becomes necessary. This book explores how Electrochemical Energy Storage and Conversion (EESC) devices are promising advanced power systems that can directly convert chemical energy in fuel into power, and thereby aid in proposing a solution to the global energy crisis. The book focuses on high-temperature electrochemical devices that have a wide variety of existing and potential applications, including the creation of fuel cells for power generation, production of high-purity hydrogen by electrolysis, high-purity oxygen by membrane separation, and various high-temperature batteries. High-Temperature Electrochemical Energy Conversion and Storage: Fundamentals and Applications provides a comprehensive view of the new technologies in high-temperature electrochemistry. Written in a clear and detailed manner, it is suitable for developers, researchers, or students of any level.

Hydrogen Technology: Fundamentals and Applications relates theoretical concepts to practical case studies in the field of hydrogen technology with an emphasis on materials and their applications. To implement hydrogen conversion production processes, it is crucial to understand the structural, microstructural, textural, thermal, catalytic, and electrochemical properties of materials. Covering nanomaterials, heterogeneous catalysis, greenhouse gas conversion, reforming reactions for hydrogen production, valorization of hydrogen energy, biomass valorization, the hydrogen economy, and its technical feasibility, this book addresses how bio/hydrogen technology can be used to solve environmental problems, including how to produce, convert, and store energy through electro/catalytic reactions and chemical valorization. Providing an understanding of the different factors involved, such as the availability of raw material, location, viable process and production scale, and economic criteria, this book will especially be of interest to engineers, scientists, and students in the field of hydrogen technology. - Explains the phenomena that govern electrocatalytic/catalytic reactions - Covers the study of new materials design and industrial processes - Includes process improvements for obtaining hydrogen via chemical and biological processes