In the unit illustrated, the feedwater...

Question 1 of 2707066636eee28f7522a1c51f569

In the unit illustrated, the feedwater temperature is required to be increased to 165°F or greater and must exist at this temperature when leaving __________. Illustration GS-0053

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Question 1 of 27070

In the unit illustrated, the feedwater temperature is required to be increased to 165°F or greater and must exist at this temperature when leaving __________. Illustration GS-0053

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🔍 Key Concepts

• Trace the feedwater flow path carefully from the pumps through each heat exchanger (HX1–HX5). • Note which heat exchanger(s) raise temperature using condenser/flash chamber heat before the water enters the boiler or flash chamber. • Think about where a minimum temperature requirement would be most critical for efficient operation and protection of downstream equipment.

💭 Think About

• From the diagram, where does the feedwater first enter the heating train, and in what order does it pass through the listed heat exchangers? • Which specific HX outlet leads directly toward the component that would need feedwater to already be at or above 165°F? • Does any of the HX outlets mix with cooler flows or go to a storage/flash chamber where temperature control is essential?

✅ Before You Answer

• Verify the direction of flow arrows around HX1, HX4, and HX5 to be sure which connections are inlets and outlets. • Confirm which HX outlet line is explicitly labeled as feedwater discharge going toward the boiler/flash chamber, not brine or distillate. • Double‑check that the location you choose is the last heating point for the feedwater just before it reaches the critical component that needs 165°F or higher.