1
Q
It is the failure of the compressor blades to move air at the desired rate.
A
Compressor Stall
2
Q
_____ compressors work more efficiently on lower rpm’s
A
Axial
3
Q
When does compressor stall occur?
A
Whenever there is an unusually high compressor RPM and a low air inlet velovity.
4
Q
Symptoms of Compressor stall:
A
- Rise in inter-stage turbine temperature (ITT) or exhaust gas temperature (EGT).
- Compressor RPM fluctuations
5
Q
When does compressor stall usually happens?
A
during start-up and acceleration/deceleration
6
Q
________ provides a means for controlling the direction of compressor inter-stage airflow, thus ensuring the correct AOA for the compressor blades.
A
variable vanes
