Engine Performance and Energy Management for engines with large power off-take EPEM

Purpose and goal

The project aims to investigate how large power outputs affect the performance of a turbofan engine with a low bypass ratio. Within the project, power output from the high-pressure and low-pressure rotor will be evaluated from an engine and aircraft performance perspective. The project is a continuation of the IFFP project EPEM and is carried out in collaboration between Saab and Chalmers.

Expected results and effects

The tool for flight performance analysis developed within EPEM enables continued and in-depth studies of how large power outputs affect the aircraft´s performance in different parts of a mission, e.g. fuel consumption. The tool will be used for more detailed studies of conventional engines and alternative engine concepts, e.g. engines with variable cycle. During the project the established research collaboration with the University of Sao Paolo will be further developed even if they are not a formal part of the project.

Planned approach and implementation

The developed aircraft performance model enables more far-reaching analyzes than have been carried out to date. For example, a mission can be simulated several times, with varying power output from the low-pressure and high-pressure shaft. After an initial evaluation, a number of concepts will be implemented in Chalmers´ engine performance tool (GESTPAN) for further detailed analysis.