This book explores the potential of hydrogen combustion in thermal engines and serves as a foundation for future research.

Hydrogen, a well-established energy carrier, has been used in internal combustion engines for centuries, but despite progress and industry interest, hydrogen engines have yet to reach mass production. In light of recent efforts to combat climate change with clean energy and environmentally-friendly technologies, the use of hydrogen in thermal engines is gaining momentum.

This book examines the unique challenges of hydrogen combustion due to its wide flammability limits, high auto-ignition temperature, and high diffusivity. It reviews current knowledge on the fundamental and practical aspects of hydrogen combustion and considers current developments and potential future advancement.

Dr. Efstathios (Stathis) - Alexandros Tingas is a lecturer in Engineering Mathematics at Edinburgh Napier University's School of Computing, Engineering and the Built Environment. He is an expert in mathematical modeling and dynamic analysis of multiscale systems in renewable fuels (hydrogen, ammonia, biofuels). He has expertise in high-fidelity simulations of reacting flows, asymptotic analysis using computational singular perturbation (CSP), and development of simplified reaction mechanisms for CFD simulations. He has a strong publication track record and experience securing funding. He serves as a manuscript and grant reviewer for various journals and organizations.

The role of hydrogen in zero-carbon propulsion and power generation systems in the 21^st century and beyond.- Hydrogen's physical characteristics.- Reaction kinetics.- Ignition.- Laminar flames.- Turbulent Flames.- Sprays.- Detonation.- Stationary combustion systems.- Spark Ignition engines.- Compression ignition engines.- Gas turbines.