The increasing concern about CO2 emissions and energy prices has led to new CO2 emission and fuel economy legislation being introduced in world regions served by the automotive industry. In response, automotive manufacturers and Tier-1 suppliers are developing a new generation of internal combustion (IC) engines with ultra-low emissions and high fuel efficiency. To further this development, a better understanding is needed of the combustion and pollutant formation processes in IC engines. As efficiency and emission abatement processes have reached points of diminishing returns, there is more of a need to make measurements inside the combustion chamber, where the combustion and pollutant formation processes take place. However, there is currently no good overview of how to make these measurements. Based on the author's previous SAE book, Engine Combustion Instrumentation and Diagnostics, this book focuses on laser-based optical techniques for combustion flows and in-cylinder measurements. Included are new chapters on optical engines and optical equipment, case studies, and an updated description of each technique. The purpose of this book is to provide, in one publication, an introduction to experimental techniques that are best suited for in-cylinder engine combustion measurements. It provides sufficient details for readers to set up and apply these techniques to IC engines and combustion flows.
Professor Hua Zhao has been involved in combustion engine research and the development of laser diagnostics for more than 25 years. As the Director of the Centre for Advanced Powertrain and Fuels Research at Brunel University in London, he leads a team of 20 academic staff and researchers on the fundamental studies and applied research of cleaner and more efficient combustion engines. His research includes CAI/HCCI (controlled autoignition / homogeneous charge compression ignition) gasoline and diesel engines, two- and four-stroke combustion systems, highly downsized direct-injection (DI) gasoline engines, cost-effective air hybrid powertrain, and the development and application of advanced laser measurement techniques to internal combustion (IC) engines. Professor Zhao has led a great many research projects in the UK and EU and directed key national projects in China on CAI/HCCI combustion engines. He has written or edited five books on IC engines and published more than 200 papers at international journals and conferences. He has received publication awards from the Institution of Mechanical Engineers, Institute of Energy, and Professional Engineering Publishing. He has collaborated widely with the automotive industry and provided consulting services to several vehicle, engine, and oil companies in Europe and China. Professor Zhao graduated from Tianjin University in China and obtained his PhD from the University of Leeds in the UK. He worked as a research fellow at Cambridge University and Imperial College in London before joining Brunel University in 1994. In 2009, he was awarded the higher doctorate degree of Doctor of Science (DSc) for his outstanding contribution to combustion engine research. He is a Fellow of SAE International and the Institution of Mechanical Engineers.