Alfred Rufer – författare

This updated edition explores the critical field of energy storage technologies in today’s evolving energy landscape. It serves as an essential reference describing various methods of storing energy in the context of renewable energy integration and efficient resource utilization.Energy Storage: Systems and Components, Second Edition, provides a thorough examination of current storage technologies and analytical frameworks. The book explores systems using electrochemical transformations, classical battery storage elements, flow batteries, fuel cells and hydrogen storage while also investigating storage systems based on physical principles such as gravitational potential forces, air compression and rotational kinetic energy. The book begins with generalities on energy storage systems, establishing fundamental parameter sets for analyzing efficiency and performance characteristics, with special attention to usable energy density across different technologies. It then methodically reviews major storage technologies with detailed technical descriptions and models, covering everything from physics-based solutions like mechanical gravitational systems and pumped hydro to compressed air storage, various electrochemical solutions and chemical transformations. This new edition includes expanded sections on emerging topics like e-methanol production, synfuels for seasonal storage and dry gravitational technology. Readers will benefit from the inclusion of Ragone plot theory, which enables evaluation of real energy release potential relative to power dependency during discharge processes.This book is ideally suited for practicing engineers and researchers in the energy domain who need comprehensive technical information on storage applications and design principles. It also serves engineering students studying energy systems, renewable integration and storage technologies, providing them with fundamental concepts and practical exercises to enhance understanding.

This book will provide the technical community with an overview of the development of new solutions and products that address key topics, including electric/hybrid vehicles, ultrafast battery charging, smart grids, renewable energy (e.g., solar and wind), peak shaving, and reduction of energy consumption. The needs for storage discussed are within the context of changes between the centralized power generation of today and the distributed utility of tomorrow, including the integration of renewable energy sources.Throughout the book, methods for quantitative and qualitative comparison of energy storage means are presented through their energy capacity as well as through their power capability for different applications. The definitions and symbols for energy density and power density are given and relate to the volume and weight of a given system or component. A relatively underdeveloped concept that is crucial to this text is known as the theory of Ragone plots. This theory makes possible the evaluation of the real amount of energy that can possibly release out of a given system, with respect to the level of power dependency chosen for the discharge process.From systems using electrochemical transformations, to classical battery energy storage elements and so-called flow batteries, to fuel cells and hydrogen storage, this book further investigates storage systems based on physical principles (e.g., gravitational potential forces, air compression, and rotational kinetic energy). This text also examines purely electrical systems such as superconductive magnets and capacitors. Another subject of analysis is the presentation of power electronic circuits and architectures that are needed for continuously controllable power flow to and from different storage means. For all systems described, the elementary principles of operation are given as well as the relationships for the quantified storage of energy. Finally, Energy Storage: Systems and Components contains multiple international case studies and a rich set of exercises that serve both students and practicing engineers.