What component absorbs heat in a radiant type super heater?

The component that absorbs heat in a radiant type super heater is radiant heat from the furnace. In a radiant type super heater, the design is specifically intended to harness the heat energy produced by combustion in the furnace. This radiant heat is absorbed by the super heater tubes, which then heats the water or steam that circulates around them.

The process is vital for improving the overall efficiency of a steam system. By utilizing radiant heat directly from the flame or hot gases, the super heater can elevate the temperature of the steam beyond the saturation point, which enhances the capacity of the steam to perform work and improve the thermal efficiency of the system.

Other components like hot water, steam, and convection currents do not primarily serve the role of absorbing heat in this context. Hot water is typically a product of the heating process rather than an absorbing component, while steam is a heated state of water that is generated after the heating has occurred. Convection currents relate to the movement of heat through fluids but do not directly absorb radiant heat in the manner required for the super heater's operation.