🔍 Key Concepts

• Deaeration is the removal of dissolved gases (like oxygen and CO₂) from condensate before it enters the boiler. • Trace the condensate flow path on Illustration SG-0010: from the main condenser hotwell through heaters/tanks and back to the boiler. • Identify which component is specifically designed as a deaerating feed tank (DFT) versus components that primarily store, cool, or heat water.

💭 Think About

• Follow the condensate from the main condenser hotwell: at which piece of equipment is steam introduced and contact with condensate maximized to strip out gases? • Which listed component is purpose‑built for removing dissolved oxygen, and which are mainly for storage or temperature control? • Look at vent lines on the diagram: where are non‑condensable gases vented from the system? That will point you toward the deaeration location.

✅ Before You Answer

• Verify which symbol in the illustration is labeled with a name indicating deaerating or feed tank service. • Check where steam and condensate mix in a vessel that also has a vent to remove gases – deaeration occurs there. • Confirm that the component you pick handles condensate after the main condenser but before final feed to the boiler.