Seneca's aircraft emissions evaluation and theirs environmental

Overview & Synopsis

The SENECA supersonic aircraft concepts and associated engines cover the two main categories: airliners of approximately 100PAX with four engines and bizjets with 2 engines. The work presented here aims to assess the environmental impact of fleets of such aircraft. This covers in particular: Airport mission pairs, with respective geographical and altitudinal distribution of flight patterns, with associated inventory of aircraft emissions. Emission indices of various types, such as NOx, CO, CO2, CnHm, SOx, HySOx, etc are determined from the more detailed engine studies provided by the SENECA engine team. Full scale contrail impacts are assessed along with the detailed microphysics of the initial plume conditions. Finally, the chemical impacts of the different emissions (for example NOx on stratospheric and tropospheric ozone) and water vapour (on climate forcing) are studied with a variety of complex models.