ship propulsion systems

Ship Propulsion SystemsShip Propulsion Systems

STEAMSTEAM

DIESELDIESEL

OTHEROTHER

ConventionalConventional

NuclearNuclear

Slow SpeedSlow Speed

Medium SpeedMedium Speed

Gas TurbineGas Turbine

Combined CycleCombined Cycle

GAS TURBINE & COMBINED GAS TURBINE & COMBINED CYCLE PROPULSIONCYCLE PROPULSION

GAS GENEATOR

INTAKE

“JET ENGINE”

HIGH ENERGY GAS

POWER TURBINE

MECHANICAL OUTPUT

EXHAUST

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

GAS GENEATORPOWER TURBINE

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

AIR

GAS GENEATOR

COMPRESSOR

HP AIR

COMBUSTION CHAMBER

SPARK PLUG

FUEL

COMPRESSOR TURBINE

MElectric, Air

or Hydraulic Motor start

COMBUSTOR RING

GAS GENEATORPOWER TURBINE

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

GENERATOR

M

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

HS PINION

1st REDUCTION

GEAR

GT ELECTRIC DRIVE

COUPLINGcontroller

PROPULSION “BUS”

PROPULSION MOTOR

Other GENERATORS

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

HS PINION

1st REDUCTION

GEAR

DOUBLE REDUCTION GEAR…

LS PINION

2nd REDUCTION GEAR

THRUST BEARING

LINE SHAFT BRG

STERN TUBE BRG

… with a CRP

AHD AST

CRP: Controllable-Reversible Pitch propeller

Blades pivot on axes radial to the propeller shaft

Pitch is determined by Blade angle

“Feathering” is Zero pitch

Negative pitch yields astern thrust

At constant engine RPM, ship speed is controlled by pitch

Speed = Pitch x RPM

CRP propellers…..CRP propellers…..,,, are common with ,,, are common with Gas TurbineGas Turbine propulsion and many propulsion and many Medium Speed Medium Speed DieselDiesel propulsion ships propulsion ships

… … are occasionally used with are occasionally used with Slow Slow Speed DieselsSpeed Diesels

… … and are rare with and are rare with Steam TurbineSteam Turbine propulsionpropulsion

Aero-Derivative Gas TurbineAero-Derivative Gas TurbineDOUBLE REDUCTION GEAR…

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

Aero-Derivative Gas TurbineAero-Derivative Gas Turbine

AST

AHD

REVERSING GEAR

FIXED PITCH PROPELLER

SHAFT BRAKEASTERN

HS PINION

AHEAD HS PINION

CLUTCHESMechanicalHydraulicPneumaticElectro-magnetic

AST

AHD

REVERSING GEAR ...

CLUTCHESMechanicalHydraulicPneumaticElectro-magnetic

… may also be used with non-reversing Medium Speed Diesel Engines

Many MEDIUM SPEED Engines …

… are REVERSING ENGINES

… and most SLOW SPEED Engines …

DOUBLE REDUCTION GEARS …

HP

Common BULL GEAR (2nd REDUCTION GEAR)

AHD

LPLP, HS PINION

HP, 1st REDUCTION GEAR

HP, HS PINION

HP, LS PINION

LP, 1st REDUCTION GEAR LP, LS PINION

AST

… are utilized on the TSES VI

Twice!

GENERATOR M

ELECTRIC DRIVE

controller

PROPULSION “BUS”

PROPULSION MOTOR

Other GENERATORS

common with GAS TURBINES

Also used with….

Medium Speed Diesels (Diesel-Electric Drive)

Non-reversing steam turbines (Turbo-Electric Drive)

M

controllerG

GT

GSTEAM TURBINE

COGESCombined Gas and Steam Turbine Electric Systeme.g., Royal Caribbean and Celebrity Cruise Lines

… and COMBINED CYCLES

“WASTE HEAT”

BOILER

GT C

C

C

COmbined Diesel And/Or Gas turbine cycle

Primary Plant: Diesel

Boost Power Plant: Gas Turbine

CODOG: GT takes over for Diesel(s) at high powerCODAG: GT and Diesel(s) running at high power

The Engine Order Telegraph The Engine Order Telegraph (EOT)(EOT)

E.R. TELEGRAPH

BRIDGE TELEGRAPH

The Bell BookThe Bell BookAHEADAHEAD

EMERGENCYEMERGENCY FULL FULL

FULLFULL

HALFHALF

SLOWSLOW

DEADDEAD SLOW SLOW

ASTERNASTERNEMERGENCYEMERGENCY FULL FULL

FULLFULL

HALFHALF

SLOWSLOW

DEADDEAD SLOW SLOWD

E

D

E

STAND-BYSTAND-BY oror “STDBY”“STDBY”

STOP STOP OO oror XX

The Bell BookThe Bell Book

0730 X 0834

0736 X 0840

0741 X 0844

0815 0854

0821 X 0857

0828 X FWE 0915

0829

0833

D

ARR Tenerife, CI 29 May 2005ARR 0730 C-10813340; M- 555810

C- 10815690M- 555821