Clean Combustion Summer School
Automotive Engines; Gas Turbine Engines
This course will provide a brief overview of combustion engines used for propulsion. Fundamental thermodynamic and combustion phenomenon governing the operation of spark ignition, compression ignition, and gas turbine engines will be covered. Next generation engine technologies that operate at significantly higher efficiency and lower emissions will be discussed. Major fundamental challenges associated with the development of future engines will be presented. Experimental and numerical methods for addressing these fundamental combustion challenges in real engines will be taught, including the use of research engines optical diagnostics, and high performance computing.
This course will provide an overview of important aspects in laminar and turbulent flames, as well as advanced optical diagnostic techniques used to study such systems. Premixed and non-premixed flames will be covered together with important theoretical aspects (flame speed, stretch, extinction, tribrachial flames, etc.). Turbulent flame theory, simulation, and scaling laws for high pressure combustion systems will be discussed. The course will also focus on the design of experimental systems to study fundamental laminar and turbulent flames. Advanced diagnostics techniques using lasers to measure flow field velocity, species, and temperature will be presented. These aspects will be further reinforced in laboratory sessions where students will access various flame experiments and laser systems.
This course will cover fundamental aspects of fuels of importance to practical combustors. A significant focus will be place on liquid fuels used in transportation and power generation applications. Important aspects of fuel characterization and chemistry will be discussed together with chemical kinetics experiments and theory. Methods to characterize the molecular structure of complex mixtures and to develop representative surrogates will be presented. The effects of these fuel properties on combustion performance in next generation engines will be highlighted along with important aspects around chemical kinetic modeling. A focus will be placed on experimental techniques used for chemical kinetics studies, such as shock tubes, rapid compression machines, and various flow and stirred reactors, together with advanced diagnostic methods used in these systems. These experimental aspects will also be covered in the laboratory sessions. Essential aspects of chemical rate theory used in the development of chemical kinetic models will be presented.