What is a boiler?

Boiler, also called Steam Generator is a setup designed to convert a liquid into vapor. In a steam power plant, a boiler consists of a heating system in which fuel is burned. It sends out heat from the ignition products to the water and a room where steam can structure and collect. Generally, a boiler has a furnace that burns fossil fuel in the same mechanism as burning waste fuels. A nuclear reactor can also work as a source of heat for generating steam. The steam boilers are usually classed into two category fire-tube and water-tube types. In the fire-tube type, the water generally surrounds the steel tubes which the hot gases flow from the furnace. While in the water tube boiler, there is water inside tubes with the hot furnace gases circulating outside.