Project Overview

The objective of the topic (WP6.1.1 Environmental Control System) in which the project is allocated is to investigate Electrical ECS for more electrical aircraft.

The electrical air conditioning pack consists of a motorized air cycle machine with variable nozzle area, heat exchangers, electrical fans, jet pumps, valves and ram air doors. The flow and the temperature at pack outlet are controlled based on cabin and cockpit requirements. The electrical power consumption shall be minimized. The electrical air conditioning pack has a nonlinear behavior.

The first objective of the MULTIECS project is to develop a multivariable control approach for electrical air conditioning pack, covering all or most of the control modes, in order to reduce complexity and to improve the transient performance.

The second objective is to get a description of a model and a control laws calibration method, with some associated tools, in order to provide better calibration results and lower calibration time. 

The following figure is a diagram with the relation between the different workpackages of the project and the topic WP6.1.1: