07 - Systems, Subsystems and Equipment
DETECTING HIGH-ALTITUDE ICE CRYSTAL (HAIC) ICING EVENTS FROM TOTAL AIR TEMPERATURE
A. Rodríguez-Sanz¹, R.M. Arnaldo¹, E. Sánchez Ayra, Universidad Politécnica de Madrid (UPM) & IBERIA, Spain; F. Gómez Comendador¹; ¹Universidad Politécnica de Madrid (UPM), Spain
Ice crystals accreting inside the core of jet engines constitutes a hazard to turbofan engines. Often undetected by flight crew, they occurs simultaneously with airplane TAT anomaly reading zero, or in error, due to ice crystal buildup at the sensing element. In this work, TAT events are analyzed from pilot reports and from FDM. The project develops a sensor failure tolerant heuristic that generates a reliable?enough indicator, based on the differences between the TAT and the engine’s inlet temperature sensors, to provide early warning to pilots of high concentrations of ice crystals. rnrn