accessory drive/gearbox assembly t4t4 t3t3 t2t2 n 1 = 400 rpm n 4 = 2000 rpm t1t1 = 100 teeth find t...
TRANSCRIPT
T4
T3T3
T2T2
n 1n 1 =400 rpm =400 rpm
n 4n 4 =2000 rpm =2000 rpm
T1T1 =100 teeth =100 teeth
Find T4
Gears LawGears Law
If T = No. of Gear Teeth
nRPM of Gear =
If T = No. of Gear Teeth
n = RPM of Gear
T1T1
==n 1n 1
n 4n 4
T4T4
T1T1
n 4n 4 =2000 rpm =2000 rpm
T4T4
T3T3
XX T3T3
T2T2
T2T2
T1T1
XX ==n3n3
n4n4
n2n2
n3n3
XX n1n1
n2n2
XX
T4T4
T3T3
n3n3
n4n4
==T3
T3
T2T2
n2n2
n3n3
== T2T2
T1T1
n1n1
n2n2
==
n 1n 1 =400 rpm =400 rpm
T1T1
=100 teeth =100 teeth
T4T4 ==
400400
20002000100100 XX == 20 Teeth 20 Teeth
T4T4 ==
n1n1
T1T1 XX
n4n4
6
LUBE OIL SYSTEM
LUBE OIL SYSTEM
Gear
Box
Gas Turbine
COMPRESSOR
7000 mm Above Machine C/L
Rundown Tank
Lube Supply Oil Header
To Lube Oil Reservoir
Starter Motor
HS.C
Lube Oil Drain HeaderTo Main Lube Oil Reservoir
Starter motor will be disconnected at about 65% of the max. operating speed
Combustion chamber
Atomizing airPrimary airSecondary air
Fuel
Atomizing air
Sealing airCooling air
Bleeding air
Three types of combustion chambers are used in gas turbines:
- Single combustion chamber- Annular combustor- Can annular combustor (several combustion chambers)
Types of Combustion Chambers
1.Single combustion chamber
2-Annular Combustor
The annular combustor's combustion chamber completely surroundsthe shaft.
Fuel nozzles are insertedinto the annular chamber at various points aroundthe chamber’s perimeter