Engineering · Steam — Feed System
The deaerating feed tank (DFT) serves to:
- ACool the condensate
- BHeat the feedwater and remove dissolved gases (oxygen/CO2)✓ Correct
- CStore fuel oil
- DGenerate superheated steam
Explanation
The DFT/deaerator heats feedwater with steam and scrubs out dissolved oxygen and CO2, both to protect against corrosion and to provide a net positive suction head reserve for the feed pumps.
Authority: Steam Plants (USCG engineering topic)
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