POWER PLANT THEORY | COLD SECTION | COMBUSTION | FUELS and OIL |
---|---|---|---|
100BC
When was the first turbine engine created
|
10 times
How much more air is required for a turbine engine than a reciprocating engine
|
25%
What percentage of air is used for combustion
|
JP-8
What is the army standard fuel
|
Increses Speed
Decreses Pressure and Temperature
What are the 2 properties of a convergent duct
|
1 rotor
1 stator
What makes up one stage of axial compression
|
N2 or NP
What is the repensentation for power turbine speed
|
6 Hours
How long can the T55-L-714 Operate using its emergency Fuel
|
1939
When was the first turbine engine powered aircraft
|
Designed to supply enough air to sustain cooling and combustion requirments
What is the main function of a compressor
|
Limits turbine speed
More weight
What are two disadvantages of power turbine blade shrouding
|
3 Microns or finer
What is the largest micron oil filter you can use for the oil system on a turbine engine
|
ability to run smoothly
must be able to operate at widley varying conditions
What is meant by operating flexibility
|
Centrifugal
Axial Dual
What are the 3 types of compressors
|
Drain off fuel after an aborted start or shutdown
What is the purpose of the combustor drain valve
|
Dry, Wet
What are two types of oil sumps
|
Both are Air breating
Both use an air fuel mixture for combustion Both have four events taking place in cycle Both Operate in Cycles
What are the four similarities of recipocating and turbine engines
|
large frontal area
not easily repairable
What are the disadvantage of a centrifugal compressor
|
two thirds
how much energy produced is used to maintain compressor speed
|
one pint
How much oil must you drain when using the drain method to get a representation of the oil system
|