Transcript gas turbine - student slides

Basic Turbojet Engine
5
1
2
1 – Inlet
2 – Post compression
3 – Post combustion
4 – After turbine
5 – Exhaust
3
4
GENX Engine
GE90-115B 115,000 lbs. thrust
Same scale
GE I-A 1,250 pounds of thrust
GP7200 for the Airbus A380
T.O. Thrust 70,000 lb
Bypass ratio 8.7 to 1
Fan Diameter 116 in (295 cm)
GE90-115B Certification
Water Ingestion - Peebles, Ohio
Crosswind Testing
(Site 6A at Peebles, Ohio)
Hail Ingestion
(Site 4A, Peebles, Ohio)
Propulsion Driving Industry Advances
0.9
SFC 35K/0.8Mn Uninstalled
0.8
JT3C
Turbojet
Low Bypass
Turbofan
2nd Gen High Bypass
Turbofan
High Bypass
Turbofan
JT3D-1
CJ805
JT8D-9
JT8D-217
0.7
TAY 620
JT9D-7A
JT9D-3A
CFM56-2
CF6-6D
RB-211-524D
JT9D-7R4G2
CF6-80A
0.6
V2500 A1
CFM56-5A
BR 715
RB-211-535E4 CF6-80C2-B6F
CFM56-5C4
CF6-80E1-A2
PW4168
PW4098
PW2037 PW4056
PW4084
TRENT 895
GE90-85B
0.5
GE90-115B
0.4
1950
1960
1970
1980
1990
Certification Date
2000
2010
2020
Noise Reduction Advancements
120
Turbojet
• Normalized to 100,000-lb. thrust
• Noise levels are for airplane/engine
configurations at time of initial service
707-100
110
Noise
Level,
EPNdB
(1500-ft.
sidelines)
100
DC-9-10
737-200
727-200
737-200
747-200
First Generation
Turbofan
90
1950
Second Generation
Turbofan
1960
A321
A310
747-400
DC-10-30
A330
737-300
1970
1980
Year of Initial Service
1990
2000
SR-30 Turbojet Engine
SR-30 Gas Turbine Engine – Cut Away
Axial
Turbine
Counterflow
Combustor
Radial
Compressor
Fuel
Injector
Impingement
Start
1
5
Thrust
Producer
Air
Intake
4
3
Flame
2
SR-30 Gas Turbine Engine – Side View
Oil Inlet
spark
Inlet
nozzle
T2
T1
T3
Oil Outlet
SR-30 Gas Turbine Engine – Exhaust View
Fuel Injectors
Exhaust Nozzle
Fuel Input
T5
Throttle arm
Pitot used to traverse
the exhaust plane
Nozzle (guide vanes)
2
Oil inlet
combustor
combustor
3
1
4
6
Fuel
Injector
Axial Turbine
Radial Compressor
combustor
Oil outlet
Hatched regions indicate blading
Ignitor
Radial
diffuser
SR-30 Components
Outer
Housing
Inlet
Nozzle
Guide
vanes to
turbine
Combustor
Fuel
manifold
Radial
Compressor
Turbine
Ceramic
Ball bearings
SR-30 Turbojet Engine -- Plumbing
cooling fans
oil pump
fuel tank
(red)
oil return
fuel pump
oil filters
fuel filters
oil delivery
oil tank