Clean Sky Technology Evaluator – Air Transport System assessments

Green Rotorcraft (GRC) addressing rotorcraft technologies Sustainable And Green Engines (SAGE) addressing engine technologies Systems for Green Operations (SGO) addressing aircraft systems Eco-Design (ED) addressing aircraft life cycle assessment The Technology Evaluator is a simulation network that assesses the performance of the technologies developed in the ITDs and clustered at concept aircraft level. TE assessments are done in order to evaluate emissions or noise improvements of Clean Sky aircrafts and fleets. From the beginning it was recognized that successfully monitoring progress towards the ACARE environmental goals (noise and emissions) would require a crosscutting evaluation platform in the Clean Sky Program. The TE was born from this need, and its composition reflects the need to pool know-how and simulation/modelling capability that exists among industry, the research establishments and academia. In order to determine noise or emissions improvements the approach in the TE is to ‘insert’ Clean Sky conceptual aircraft into a number of evaluation scenarios. In essence: the technologies developed, matured and demonstrated in the Clean Sky ITDs are ’clustered’ in coherent and mutually compatible solution-sets that define a potential future aircraft. These conceptual aircraft are ‘flown’ (i.e. simulation scenarios are run) and the Clean Sky configurations are compared to the most relevant benchmarks: most importantly the state-of-the-art of aircraft of similar size and role in the year 2000 (ACARE’s baseline year). The comparisons are performed at a single flight, or ‘mission’; at the level of illustrative airports; and finally across the global air transport system. So the TE approach aims to demonstrate the environmental impact in the overall aviation system of Clean Sky’s (research and technology) output by illuminating the ‘pathway’ from technologies to aircraft and air transport system (ATS) performance. The presentation of this paper will focus on the ATS level assessments, i.e. showing the Clean Sky technologies environmental impacts through global or regional aircraft fleet scenarios.