IEP-intergrated electrical propulsion(Type 45)
CODLAG-combination of diesel electric and gas(type 23)
2 of 14
state five advantages of gas turbines
Ability to get underway fast
Ease of operation with emphasis on RC
High power/weight ratio
Minimum shipboard maintenance
Low man power requirement
3 of 14
State and explain all stages of the 3 stage filter
Stage 1-"spray eliminator" made of baffle plates removing water from air
Stage 2-made of a knit mesh filter removes particles and combines remaining water
Stage 3-another set of baffle plates to remove any remaining water
4 of 14
Name 5 components that transfer and filter air to the gas turbine
splitter/silencer
Stone guard
Transition Duct
cascade bend
Intake flare
5 of 14
State the 5 stage cycle of a gas turbine
Intake
Compression
Combustion
Power
Exhaust
6 of 14
What is the purpose of the power turbine ?
The power turbine converts heat energy into rotary motion connected to a shaft that feeds a gear box.
7 of 14
State 8 safety devices
Hand trip
Fire detectors
Power Turbine Entry Temperature(PTET)
Partial over speed safety device
LP and HP compressor governs
Vibration Monitor
Power turbine over speed
Safety locks
8 of 14
State 4 running checks that are carried out hourly
Pressure
Temperature
Oil levels
Noise and vibration
Leaks
9 of 14
Describe wet motoring
The gas turbine is turned over using the starter motor with the fuel system on and the igniters isolated by removing there fuses, done to test fuel system after maintenance.
10 of 14
Describe dry motoring
The gas turbine is turned over using the starter motor with the fuel system and igniters isolated, done after wet motoring and used to turn over the compressors for cleaning.
11 of 14
Why and when is water washing carried out ?
Water Washing is carried out to remove fowling from the compressor blades and is done on a time basis(100HRs/2 Months spey, 150Hrs WR21)
12 of 14
What PPE should be used with CCF ?
Apron
Goggles
Gauntlet gloves
Visor
13 of 14
State 4 warnings when using PX24
PX24 is highly flammable
No smoking
Ensure engine room is well ventilated
Ensure igniters are removed
14 of 14
Other cards in this set
Card 2
Front
state the two propulsion lay outs
Back
IEP-intergrated electrical propulsion(Type 45)
CODLAG-combination of diesel electric and gas(type 23)
Card 3
Front
state five advantages of gas turbines
Back
Card 4
Front
State and explain all stages of the 3 stage filter
Back
Card 5
Front
Name 5 components that transfer and filter air to the gas turbine
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