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.

Solar Hydrogen Production: Processes, Systems and Technologies presents the most recent developments in solar-driven hydrogen generation methods. The book covers different hydrogen production routes, from renewable sources, to solar harvesting technologies. Sections focus on solar energy, presenting the main thermal and electrical technologies suitable for possible integration into solar-based hydrogen production systems and present a thorough examination of solar hydrogen technologies, ranging from solar-driven water electrolysis and solar thermal methods, to photo-catalytic and biological processes. All hydrogen-based technologies are covered, including data regarding the state-of-the art of each process in terms of costs, efficiency, measured parameters, experimental analyses, and demonstration projects. In the last part of the book, the role of hydrogen in the integration of renewable sources in electric grids, transportation sector, and end-user applications is assessed, considering their current status and future perspectives. The book includes performance data, tables, models and references to available standards. It is thus a key-resource for engineering researchers and scientists, in both academic and industrial contexts, involved in designing, planning and developing solar hydrogen systems. - Offers a comprehensive overview of conventional and advanced solar hydrogen technologies, including simulation models, cost figures, R&D projects, demonstration projects, test standards, and safety and handling issues - Encompasses, in a single volume, information on solar energy and hydrogen systems - Includes detailed economic data on each technology for feasibility assessment of different systems

Solar-Hydrogen Energy Systems is a collection of papers that discusses the advancements in the research of alternative energy technologies that utilizes solar-hydrogen energy systems. The text first introduces the concept of solar-hydrogen energy system, and then proceeds to covering the technical topics in the subsequent chapters. The next chapters talks about the thermodynamics of water-splitting and water electrolysis. Next, the selection details direct thermal decomposition of water. The selection also discusses different processes to produce hydrogen, such as thermochemical, photochemical, and biochemical. The ninth chapter talks about solar energy storage by metal hydride, and the last chapter deals with direct solar energy conversion at sea. The book will be of great interest to scientists, engineers, and technicians involved in the research, development, and implementation of alternative energy technology.

Given the backdrop of intense interest and widespread discussion on the prospects of a hydrogen energy economy, this book aims to provide an authoritative and up-to-date scientific account of hydrogen generation using solar energy and renewable sources such as water. While the technological and economic aspects of solar hydrogen generation are evolving, the scientific principles underlying various solar-assisted water splitting schemes already have a firm footing. This book aims to expose a broad-based audience to these principles. This book spans the disciplines of solar energy conversion, electrochemistry, photochemistry, photoelectrochemistry, materials chemistry, device physics/engineering, and biology.

It is just a matter of time when fossil fuels will become unavailable or uneconomical to retrieve. On top of that, their environmental impact is already too severe. Renewable energy sources can be considered as the most important substitute to fossil energy, since they are inexhaustible and have a very low, if none, impact on the environment. Still, their unevenness and unpredictability are drawbacks that must be dealt with in order to guarantee a reliable and steady energy supply to the final user. Hydrogen can be the answer to these problems. This book presents the readers with the modeling, functioning and implementation of solar hydrogen energy systems, which efficiently combine different technologies to convert, store and use renewable energy. Sources like solar photovoltaic or wind, technologies like electrolysis, fuel cells, traditional and advanced hydrogen storage are discussed and evaluated together with system management and output performance. Examples are also given to show how these systems are capable of providing energy independence from fossil fuels in real life settings.

This book provides a broad overall view of the photoelectrochemical systems for solar hydrogen generation, and new and novel materials for photoelectrochemical solar cell applications. Hydrogen has a huge potential as a safe and efficient energy carrier, which can be used directly in fuel cells to obtain electricity, or it can be used in the chemical industry, fossil fuel processing or ammonia production. However, hydrogen is not freely available in nature and it needs to be produced. Photoelectrochemical solar cells produce hydrogen from water using sunlight and specialized semiconductors, which use solar energy to directly dissociate water molecules into hydrogen and oxygen. Hence, these systems reduce fossil fuels dependency and curb carbon dioxide emissions. Photoelectrochemical Solar Cells compiles the objectives related to the new semiconductor materials and manufacturing techniques for solar hydrogen generation. The chapters are written by distinguished authors who have extensive experience in their fields. Multidisciplinary contributors from physics, chemical engineering, materials science, and electrical and electronic information engineering, provide an in-depth coverage of the topic. Readers and users have the opportunity to learn not only about the fundamentals but also the various aspects of the materials science and manufacturing technologies for photoelectrochemical solar cells and the hydrogen generation systems via photoelectrochemical conversion. This groundbreaking book features: Description of solar hydrogen generation via photoelectrochemical process Designs of photoelectrochemical systems Measurements and efficiency definition protocols for photoelectrochemical solar cells Metal oxides for solar water splitting Semiconductor photocatalysts Bismuth vanadate-based materials for solar water splitting Copper-based chalcopyrite and kesterite materials for solar water splitting Eutectic composites for solar water splitting Photocatalytic formation of composite electrodes

This book concerns one of the more persistent of the ideas that have been discussed in journals devoted to energy science during the last few years. It deals with the concept that hydrogen should be the medium of energy and the sun should be the source (and, in the interim, perhaps also coal, biomass, or nuclear fuel). The translation has been carried out by Dr. W. Schuh and Mrs. K. Claus in collaboration with me. Certain difficulties confronted us at an early stage, and our resolution of them requires some explanation. First, the chapters that we received from the original German authors were written at varying times during the 1980s. Some years later, for the anticipated publication in the United States, about half of the chapters were completely rewritten. The translation was done in 1984-1986. Second, the original volume is a German book. Most of the examples in it refer to the Federal Republic of Germany, although some extend to Europe in general.

Fundamentals of Hydrogen Production and Utilization in Fuel Cell Systems provides a comprehensive overview of the complex and interdisciplinary issues surrounding the use of hydrogen fuel cells in the global transportation system. With a particular emphasis on the commercialization and implementation of hydrogen fuel cells, the book deals with production, utilization, storage and safety, and addresses the application of fuel cells in the road, rail, maritime and aviation sectors. For each sector, the book discusses the fundamentals of fuel cells, the current technical, environmental, safety, and economic performance, the main barriers to implementation and how to address themThis book is an invaluable reference for researchers, graduate students and industry engineers across the fuel cells and transportation sector, but is also ideal for policymakers involved in the energy transition. - Offers the first account of hydrogen fuel cell systems that considers every sector: road, rail, maritime and aviation - Focuses on the practical utilization and implementation of hydrogen fuel cells in transportation systems - Summarizes the latest research and developments in hydrogen fuel cell powered transportation

In the near future the world will need to convert to a suitable, clean energy supply: one that will meet the demands of an increasing population while giving few environmental problems. One such possible supply is hydrogen. Hydrogen Energy System describes the present status of hydrogen as an energy supply, as well as its prospect in the years to come. It covers the transition to hydrogen-based, sustainable energy systems, the technology of hydrogen production, its storage and transport, and current and future hydrogen utilisation. Economic analyses of the hydrogen energy system, together with case studies, are also presented.

Learn how to construct and operate the components of a solar hydrogen fuel cell system: the fuel cell stack, the electrolyzer to generate hydrogen fuel, simple hydrogen storage, and solar panels designed specifically to run electrolyzers for hydrogen production. Complete, clear, illustrated instructions to build all the major components make it easy for the non-engineer to understand and work with this important new technology.--from publisher description