CIDAR Combustion species imaging diagnostics for aero-engine research

Very high bypass ratio (VHBR) engines will realize significant environmental benefits as lower fuel consumption contributes to a reduction in CO2, NOx and non-volatile particulate matter emission. VHBR engine performance tests will require representative CO2 measurement, and here we propose the use fo a chemical species tomography (CST) measurement system to fully map the output CO2 from the engine core exhaust. In addition, we propose a technique allowing the 2D measurement of exhaust nvPM concentration that will provide an increased understanding of the complex injecto-to-injector fuel flow variation.