General Studies · Power Plant Engineering
What is the primary function of an economizer in a boiler?
- 1To increase thermal efficiency directly in the furnace
- 2To economize on fuel without utilizing waste heat
- 3To extract heat from the exhaust flue gases to preheat feed water✓
- 4To increase flue gas temperature
Correct answer
To extract heat from the exhaust flue gases to preheat feed water
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