A boiler is used to generate steam at a desired pressure and
temperature by transferring heat produced by burning fuel to water to
change it to steam.

Steam is used for the following purposes:

Power generation

Processing

Heating

Requirements of an efficient boiler

           
1) Should generate maximum amount of steam at a required pressure and
temperature and quality with minimum fuel consumption.

            2) Should be light in weight and should not occupy large space.

            3) Should conform to safety regulations.

            4) Should have low initial cost, installation cost and maintenance cost.

            5) Should be able to cope with fluctuating demands of steam supply.

           6) All parts and components should be easily accessible for inspection and repair.