Introduction to Application of Clean Fuels in Combustion Engines

Energy and the environment are the primary concerns for the transportation sector. Besides, the rapidly shrinking petroleum reserves are already alarming. All these, push the governments to find solutions for alternatives able to reduce the carbon footprint and pollutant emissions. Indeed, recent directives push toward carbon-neutral mobility by 2050. The electrification of the propulsion systems represents the priority. However, the research community has demonstrated as the application of cleaner fuels or zero-carbon fuels in the transport sector represents a valid medium-term alternative for decarbonizing the sector. This accelerates the alternative fuels requirements. In this context, renewable fuels, such as bio-alcohols, biogases are considered promising solutions. In this regard, the chapters of this book are based on aspects related to the technologies, methodologies for improving the combustion process and emissions trends applying cleaner fuels to internal combustion engines.