What is the function of the economizer fitted in a ship's main engine exhaust boiler system?
Direct Answer
Option C: Generate auxiliary steam by absorbing waste heat from engine exhaust gases
Economizers recover waste heat from high-temperature main engine exhaust gases to generate auxiliary steam for shipboard heating and hotel loads. This heat recovery process significantly improves overall thermal efficiency and reduces auxiliary boiler fuel consumption.
All Options
Detailed Explanation & Context
Economizers recover waste heat from high-temperature main engine exhaust gases to generate auxiliary steam for shipboard heating and hotel loads. This heat recovery process significantly improves overall thermal efficiency and reduces auxiliary boiler fuel consumption.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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