Heats feed water

Supplies hot air to economiser

Supplies hot air to super heater

Extracts heat from flue gases and heats input air

Disposal of waste

Running cost is more

Plant requires large space

Installed away from load centre

Converts water into steam

Heats the air by the flue gases

Heats the feed water by the flue gases

Purifies the feed water by chemical treatment

More reliable

More efficient

Low initial cost

Reduce pollution

Controls the over voltage

Disconnects turbine from the battery

Prevents the over charging of battery

Controls the over speed of the turbine