Class 2 (2nd Engineer) MEKG 📅 Feb 2018

Exam Question

(a) State the advantage of using steam turbine propulsion power for vessels carrying LNG cargo

(b) With regards to the use of LNG cargo as boiler fuel, explain:

(i) The safety precautions relating to the gas pipeline supplying the boiler and burning the gas in the boiler

(ii) The means of getting rid of excessive gases during loading or discharging

Reference Answer

(a) The advantages of using steam turbine propulsion power for vessels carrying LNG (Liquefied Natural Gas) as cargo include:
1. Utilization of Boil-Off Gas (BOG): LNG naturally evaporates (boils off) during the voyage. Steam turbines can directly burn this boil-off gas in the boilers, eliminating the need for complex re-liquefaction systems.
2. Simple and Reliable Operation: Steam turbines have fewer moving parts compared to diesel engines, leading to high reliability and lower maintenance requirements.
3. Flexible Fuel Usage: Boilers in steam turbine systems can burn multiple fuels (BOG, heavy fuel oil, marine diesel oil), offering fuel flexibility.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play