What is a supercharged Boiler ?

In a Super charged boiler, compressed air is fed to the furnace.  The Super charged boiler has better heat transfer capacity.  The heat transfer required is lesser compared to a conventional boiler.  The exhaust gases which come out with high velocity are used to rotate a gas turbine.  This gas turbine in turn can rotate other auxiliaries.

A compressor is used to produce the compressed air for the furnace.  This compressor is powered by the gas turbine. 

The boiler is easier to control. It is also easier to start and requires lesser personnel to operate it.