Methodik zur Ökobilanzierung im Flugzeugvorentwurf

In this thesis, a methodology for life cycle assessment in conceptual aircraft design is being developed. Using this methodology, the environmental impact of the designed aircraft can be calculated. Additionally, the driving in- and outputs, processes, life cycle phases, impact categories and design parameters for the environmental impact of aircraft can be identified. A turboprop aircraft serves as application example for the methodology. It is being optimized for minimum environmental impact and the results are being compared to those of a reference aircraft. Additionally, the methodology is applied to future aircraft concepts, and their environmental impact is compared to that of the reference aircraft as well. The investigation of the turboprop aircraft shows that there is generally a high potential for reducing environmental impact. The reduction of fuel consumption and an adaptation of flight altitude are identified as decisive factors. The environmental impact of the investigated future concepts is tending to shift from flight to the production of the respective energy sources. In the production process, the share of electric energy from renewable energy sources should be as high as possible to achieve minimum environmental impact. The integration of a life cycle assessment methodology into conceptual aircraft design allows to analyze and influence the environmental impact of future aircraft early in the design process.