Physics · Thermodynamics

Why do modern steam power plants implement a regenerative feedwater heating system?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1It is utilized solely to generate localized high-pressure steam outputs.
2It directly accelerates the combustion process inside the boiler.
3It functions primarily to keep turbine blades cooler during high-load operations.
4It improves thermal efficiency by recovering heat from bled steam to preheat feedwater, reducing overall fuel consumption.✓

Correct answer

It improves thermal efficiency by recovering heat from bled steam to preheat feedwater, reducing overall fuel consumption.

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