Abstract
It is always a strong motivation for aeronautic researchers and engineers to reduce the aircraft emissions or even to achieve emission-free air transport. In this paper, the impacts of different game-changing technologies together on the reduction of aircraft fuel consumption and emissions are studied. In particular, a general tool has been developed for the technology assessment, integration and also for the overall aircraft multidisciplinary design optimization. The validity and robustness of the tool has been verified through comparative and sensitivity studies. The overall aircraft level technology assessment and optimization showed that promising fuel efficiency improvements are possible. Though, additional strategies are required to reach the aviation emission reduction goals for short and medium range configurations.
Highlights
Despite the dramatic progress in the past decades, aviation industry is still facing significant pressure in reducing fuel consumptions, emissions and costs, especially when it comes to the ambitious goals set by aviation authorities such as Flightpath 2050 [1] in Europe
Laminar and turbulent boundary layers as well as the transition are of key importance with respect to aircraft friction drag and its impact on pressure drag because drag is significantly lower for laminar flow
It has to be noted that the tool developed within the EWL project has a very good compromise between complexity and fidelity levels, which is more suitable for aircraft technology assessment for such a joint research project as compared to other tools already being developed
Summary
Despite the dramatic progress in the past decades, aviation industry is still facing significant pressure in reducing fuel consumptions, emissions and costs, especially when it comes to the ambitious goals set by aviation authorities such as Flightpath 2050 [1] in Europe. Graham et al [5] from University of Cambridge have summarized different novel aircraft concepts proposed by aviation research communities and have concluded that ACARE and NASA emission goals cannot be achieved without developing transformational concepts. German aircraft words Energiewende in der Luftfahrt, which is an interdisciplinary project in Germany conducted by Technische Universität Braunschweig, Leibniz Universität Hannover, HBKwide-body aircraft From this figure, one can observe the difficulty of realizing the emission in Germany conducted by Technische Universität Braunschweig, Leibniz Universität Hannover, goals, HBKBraunschweig, DLR, PTB and Fraunhofer-Gesellschaft)” has been initiated in Germany to identify and as the rate of reduction consumption is not”high.
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