Exergy and Exergoeconomic Comparative Analysis Between Conventional and Hybrid Electric Propulsion Systems for a Regional Aircraft

摘要

Aggressive targets for reducing aviation environmental impacts require considerable improvements in aircraft design such as nonconvcntional aerodynamic configurations, new materials and more efficient systems. This scenario poses airframe manufacturers to make more efficient products only achievable by making a complete integrated design between airframe and systems. In this sense, the aircraft design shall be committed to the maximum efficiency and minimum waste of useful energy (exergy destruction). The concept of exergy analysis has already been successfully applied to evaluate, compare and optimize thermal systems and chemical processes in other industrial fields. Thereby, this paper presents how exergy analysis can be used as a tool for aircraft design and shows an application of the method to evaluate competitive propulsion system architectures for a regional aircraft.