An integrated model for energy management of aero engines based on thermodynamic principle of variable mass systems

Busheng Wang and Yimin Xuan

Energy, 2023, vol. 276, issue C

Abstract: Energy management technology is considered to be a key method for advanced aero engines. However, it was assumed that the outlet mass flow rates respectively keep the same as those at the inlet of individual components for conventional energy analysis applications, in which the mass and energy storage as well as the mass-variable features of gas streams inside aero engines was usually ignored. To make the energy analysis more accurate, this paper presents an integrated model for energy management of aero engines based on the thermodynamic principle of variable mass system. By taking the twin rotor turbofan aero engine as an example with considering the possible variations of mass and energy inside individual components caused by the compressibility and temperature, the thermodynamic model is established for each component. The aero engine energy analysis is carried out with respect to the aerodynamic and thermodynamic parameters of the inlet and outlet of each component for both of the steady-state operation and transient operation processes. The results reveal that the proposed model can accurately calculate the steady operating point of aero engines, and the transient response of aero engines predicted by the proposed model is delayed compared with the conventional model.

Keywords: Aero engine; Variable mass system; Energy management; Dynamic behavior (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:276:y:2023:i:c:s0360544223009258

DOI: 10.1016/j.energy.2023.127531

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