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Multi-disciplinary conceptual design of future jet engine systems

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Multi-disciplinary conceptual design of future jet engine systems ( multi-disciplinary-conceptual-design-future-jet-engine-syste )

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Konstantinos G. Kyprianidis Framework Development codes fail to consider one or more important disciplines for engine conceptual design, which can severely hinder the degree of realism during design space ex- ploration. A Techno-economic, Environmental and Risk Assessment (TERA) approach dur- ing the conceptual and preliminary design process for complex mechanical sys- tems will soon become the only affordable, and hence, feasible way of producing optimized and sound designs, if the whole spectrum of possible impacts (eco- nomic, environmental etc.) is to be taken into account. A tool following the TERA approach is required to conceive and assess engine designs with minimum environmental impact and lowest cost of ownership in a variety of emissions leg- islation scenarios, emissions taxation policies, fiscal and air traffic management environments. This chapter presents the development of a multi-disciplinary aero engine conceptual design tool that considers the following disciplines: en- gine performance, engine aerodynamic and mechanical design, aircraft design and performance, emissions prediction and environmental impact, engine and airframe noise, and production, maintenance and direct operating costs. The de- veloped conceptual algorithm is explicit; it minimises internal iterations, reduces system complexity and improves computational speed. 2.2 The development of TERA2020 2.2.1 General objectives Decision making on near term emissions legislation and taxation policies is use- fully informed through industry studies, with respect to the impact certain leg- islator decisions could have on the design and operation of future civil aircraft engines. A TERA approach tool intends, mainly, to address policy evaluations at a “macro level” looking more at how long term and global legislation can be addressed. TERA2020 can therefore be viewed as a common tool which in the future, and through continuous refinement with input from legislators, opera- tors, OEMs (Original Equipment Manufacturer) and universities, could enhance the dialogue between these parties by increasing the visibility of the impact of different policy issues on a consistent and formal basis. Another potential benefit from the development of TERA2020 within the Eu- 13

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