CHILDS, T. ...et al., 2015. Development of a full scale experimental and simulation tool for environmental control system optimisation and fault detection. Presented at: 53rd AIAA Aerospace Sciences Meeting, AIAA SciTech, Kissimmee, Florida, USA AIAA 2015-1196
This paper documents the installation of a
fast jet military aircraft Environmental
Control System (ECS) ground test facility. The system used in this case is a bleed-air driven two-wheel bootstrap cycle with low pressure water extraction. The facility allows the ECS to be run at conditions similar to those in the aircraft during ground operation. Data from the rig is presented and used to validate a 1-D thermodynamic model. The relationships between aircraft altitude and speed against
ECS Coefficient of Performance and system heat rejection are presented, seamlessly
utilising both experimental and modelled
data. Furthermore, a scenario depicting a
ram air blockage in the secondary
heat exchanger demonstrates the system’s ability to mask faults. The physical system is used for component-level analysis, whilst the model extends this to system-level. General attributes of the system operation are discussed.
This paper was accepted for publication by the AIAA and the definitive published version is available at http://dx.doi.org/10.2514/6.2015-1196
The paper was funded by the Engineering and Physical Sciences Research Council (EPSRC) UK.