DOC AIRBUS | AMM A320FCOOLING - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
1. General
The power plant cooling system consists of:
The power plant cooling system consists of:
- cooling of the nacelle compartments
- cooling of the aircraft and engine accessories
- cooling of engine parts (HPT, HPC, LPT, ECU)
A. Nacelle Compartment Cooling
The nacelle is divided into three major areas
The nacelle is divided into three major areas
- the engine air intake
- fan compartment
- core compartment.
(1) Sufficient airflow to offset the effects of engine case heat rejection and engine flange air leakage thereby maintaining an acceptable compartment temperature level.
(2) Cooling of temperature critical components.
(3) Cowling pressure load limiting in the event of pneumatic duct failures.
(4) Ventilation of compartment during engine shutdown.
(5) Ventilation of combustible fluid vapors to preclude fires.
B. Aircraft and Engine Accessories Cooling
The nacelle installation is designed to provide cooling and ventilation air for engine accessories mounted on the fan and core casing.
The distribution and circulation of the air in the compartments is such that the limit for specific components is not exceeded.
The nacelle installation is designed to provide cooling and ventilation air for engine accessories mounted on the fan and core casing.
The distribution and circulation of the air in the compartments is such that the limit for specific components is not exceeded.
2. Location of Components
A. Location of High Pressure Turbine Clearance Control System
The HPTCC valve is located in the HPC compressor case at 9 o'clock (forward looking aft).
The HPTCC valve is located in the HPC compressor case at 9 o'clock (forward looking aft).
HPTCC System LocationB. Location of the Low Pressure Turbine Clearance Control System