Gas Turbine Systems Flashcards
The blank can be considered the power house of the engine
Turbine
Rotating the blank causes the Compressor, front Fan and the Accessory
Gearbox to be driven
Turnine
The high energy gas stream enters the Turbine section via a set of blank blank blank
Nozzle guide vanes
Overall, throughout the Turbine there is an increase/decrease in Temperature, static pressure
and velocity
Decrease
The turbine is housed in a convergent/divergent duct.
Divergent
What is a stator also know as?
Nozzle guide vaines
As the average combustion temperature is higher than the critical melting point of the
blades, the Turbine imposes a temperature, and therefore blank limit, on the engine
Thrust
True or false : the turbine only lasts a certain amount of hours
True
What are the three types of turbine blades
Impulse - reaction - impulse reaction
What turbine is like a waterwheel?
Impulse
The Impulse Turbine needs to develop an Impingement Jet and direct this Jet at the rotor
To achieve this each element is shaped:
Nozzle – blank
Rotor – blank
(Divergent/convergent/constant area)
Convergent - constant area
Theory, in the reaction Nozzle, there is a blank velocity, pressure and
temperature
Constant
In a reactionimpulse turbine, there is a blank duct followed by a blank duct.
Converging, converging
A turbine can/cannot stall.
Cannot
Blade twist in a turbine is also known as blank
Stagger
