Question

What is the advantage of condensing the steam?

(a) To cool down the steam

(b) To discharge the same amount of feed water taken

(c) Reduces the amount of pollution

(d) Reduces the amount of fresh feed water

The question was posed to me in quiz.

I want to ask this question from Feed Water and Steam Generation System, Working of Thermal Power Plant in division Steam Power Plant of Energy Engineering

Answer 1

The correct option is (d) Reduces the amount of fresh feed water

Easiest explanation: The principle advantage of condensing operation is to reduce the amount of fresh feed water. A condenser is usually installed after the turbine to convert the exhaust steam from the turbine. They convert gaseous steam into liquid state, at a pressure below atmospheric temperature. Condensing of steam turbine below the atmospheric temperature, the steam pressure drops between the inlet and exhaust of turbine is increased, which increases amount of heat available.