Toward Clean Hydrogen Combustion, High Efficiency, and Sustainable Mobility: Green Hydrogen

This book presents a comprehensive scientific overview of hydrogen technologies and their growing role in the global transition toward sustainable and low-carbon energy systems. The work examines hydrogen from multiple perspectives, including renewable hydrogen production, industrial applications, transportation technologies, internal combustion engines, thermodynamic behavior, and numerical simulation methods. The book begins by introducing the global energy transition and the urgent need to reduce greenhouse gas emissions caused by fossil fuel dependence. Hydrogen is presented as one of the most promising alternative energy carriers because of its high gravimetric energy density, clean combustion characteristics, and ability to support renewable energy integration. Special attention is given to green hydrogen produced through water electrolysis powered by renewable electricity sources such as solar and wind energy. The text explains the different hydrogen production pathways, including gray, blue, and green hydrogen, while emphasizing the environmental advantages of renewable hydrogen technologies. A major focus is placed on Algeria's strategic potential within the future hydrogen economy. Owing to its exceptional solar resources, vast desert territories, developed gas infrastructure, and geographical proximity to Europe, Algeria is identified as a promising future producer and exporter of green hydrogen. The book also discusses the Power-to-X concept, which enables renewable electricity to be converted into hydrogen, ammonia, synthetic fuels, and other industrial products. The industrial and technological applications of hydrogen are explored extensively throughout the book. Hydrogen is shown to play a significant role in refining, chemical manufacturing, steel production, electricity generation, and transportation systems. Hydrogen fuel cell technologies are examined as clean mobility solutions for buses, trucks, trains, ships, and aircraft. In addition, the book highlights the importance of hydrogen for long-term renewable energy storage and electrical grid stabilization through power-to-gas systems.