Integrated Engine Inlet Thermal Anti-Icing and Environmental Control System (TAI/ECS)

The integrated engine inlet thermal anti-icing and environmental control system (TAI/ECS) for subsonic transport airplanes was conceived primarily for the efficient use of available energy and minimum engine bleed air extraction. The concept employs the engine inlet leading edge as the heat exchanger to provide ice protection for the engine inlet surfaces and to cool bleed air for the environmental control system. The results of a study conducted for a typical wide-body airplane using high bypass ratio engines show that the system concept will result in potential improvements in airplane operation and engine maintenance.