2. TYPE OF DIFFERENT MEANS OF PROPULSION
STEAM DRIVEN PROPULSION
MOTOR/MARINE ENGINE PROPULSION
STEAM AND MOTOR COMBINED PROPULSION
3. STEAM DRIVEN PROPULSION
Two types of existing system
1. Conventional high pressure steam turbine propulsion
2. Ultra high pressure steam turbine propulsion system
7. COMPONENTS OF ULTRA HIGH PRESSURE
STEAM PROPULSION SYSTEM
Ultra high pressure steam boiler (100Bar, 560⁰C)
Reheater
Cross compound dual stage turbine
Main Condenser
Main/Aux feed pump turbine
Forced draught fan
Turbogenerator/Diesel generator
Fuel oil booster pump/Fuel gas BOG Compressor
8. MOTOR /MAIN ENGINE PROPULSION
DFDE/TFDE PROPULSION SYSTEM
ME-GI TWO STROKE PROPULSION SYSTEM
CONVENTIONAL TWO STROKE PROPULSION WITH RELIQUEFACTION
PLANT
10. COMPONENTS OF DFDE/TFDE
PROPULSION
Dual fuel four stroke engine with 6.6KV alternator
Dual Synchronous/Induction propulsion motor with reduction gear
High voltage step down transformer
Dual frequency converter with variable drive
Gas valve train
MDO fuel booster pump
Gas combustion unit (GCU)
12. COMPONENTS OF ME-GI PROPULSION
SYSTEM
ME-GI propulsion two stroke engine with individual propeller
High pressure compressor
High pressure booster pump
Low pressure gas system
Dual fuel four stroke generator
Gas valve unit
14. COMPONENTS OF CONVENTIONAL
ENGINE WITH RELIQUEFACTION PLANT
Conventional two stroke engine with HFO fuel system
Conventional four stroke generator with HFO fuel system
LNG Reliquefaction plant
15. STEAM AND MOTOR COMBINED
PROPULSION SYSTEM
Steam turbine and Gas Injection engine (STaGE)
17. COMPONENTS OF STaGE PROPULSION
Ultra high pressure reheat steam boiler(100Bar, 560⁰C)
Cross compound dual steam turbine with reduction gear
In line Dual fuel generator/6.6KV Alternator
Single electric induction propulsion motor
Low pressure BOG compressor and heater
High pressure BOG compressor and cooler /BOG heater
High voltage step down transformer
High voltage frequency converter
18. CONCLUSION
With rapid rise in shifting of energy needs from Oil to LNG and
simultaneous exploration and extraction of huge LNG reserves all over
the globe, LNG vessels expansion is taking place at rapid pace. With
shipping industry profits on the decline, Global shipping companies are
stressing towards clean and economic running of the vessel. Hence going
by the past 20 years of trend, new types of economic LNG propulsion
system is on the rise and development in this domain will keep
progressing. Thus training with this regard is needed for updation of
knowledge in regular periods.
