Other components are often present; pumps (such as an injector) to supply water to the boiler during operation, condensers to recirculate the water and recover the latent heat of vaporisation, and superheaters to raise the temperature of the steam above its saturated vapour point, and various mechanisms to increase the draft for fireboxes. When coal is used, a chain or screw stoking mechanism and its drive engine or motor may be included to move the fuel from a supply bin (bunker) to the firebox. See: Mechanical stoker
What is an example of a pump component? In addition to recirculating water, what do condensers do? What components raise steam temperature above its saturated vapor point? What is another name for a coal supply bin? What mechanism moves coal from a bunker to the firebox?