Final answer:
Convection superheaters are typically located at the back end of the boiler, next to the boiler tank, away from the fire. They use the principle of convection for heat transfer, similar to heating water in a pot on a stove.
Step-by-step explanation:
The question refers to the typical location of convection superheaters within a boiler system. Convection superheaters are generally located at the back end of the boiler next to the boiler tank. This position allows them to capture heat from the hot gases that have passed through the radiant zones of the boiler, where they have already absorbed much of the direct radiant heat from the fire or burner. Convection superheaters rely on the hot gas flowing over the tubes to transfer heat and superheat the steam primarily through the mechanism of convection.
It's important to note that in the given options, the one that correctly refers to the location of convection superheaters is 'Away from the fire' as it somewhat represents their location compared to the more intense radiant zones closer to the fire source. Convection plays a crucial role in heat transfer within a boiler, similar to heat transfer phenomena observed in everyday examples like a pot of water heating on a stove, where heat is conducted to the water and then transferred through convection currents.