Integrated Design Optimization of Electrically-Driven Vapor Compression Cycle Systems for Aircraft: Powered by High-Speed Centrifugal Compressors

In 2022 the aviation sector accounted for 1.9%of global greenhouse gas emissions, 2.5% of global CO2 emissions, and 3.5% of effective radiative forcing. To reach the long-term target of net zero emissions, revolutionary aircraft designs, featuring electrified or hydrogen powered propulsion systems, are needed. At the same time, the...

L'effet de la taille et du fluide actif sur la conception multi-objectifs des compresseurs centrifuges à grande vitesse

The impact of size and working fluid on the efficiency, operating range, and axial thrust on bearings is examined for high-speed, oil-free centrifugal compressors. First, the development and validation of a reduced-order model based on scaling principles is documented. Then, the validated compressor model is used to generate design maps for...