🔍 Key Concepts

• Difference between radiant superheaters and convection superheaters • How heat transfer by convection works in a boiler gas path • Location of convection type superheaters relative to the flame and gas flow

💭 Think About

• Ask yourself: Is a convection superheater placed directly in the flame, or in the path of hot gases after combustion? • Which choice best describes heat being picked up from moving hot gases, not from solid surfaces or direct flame? • Eliminate any options that clearly describe radiant heating rather than convection heating.

✅ Before You Answer

• Verify which options involve direct flame or fuel bed contact and which involve moving hot gases. • Check your knowledge of boiler layout: where are convection superheater tubes usually installed in relation to the furnace? • Confirm that the correct option matches the definition of convection heat transfer: heat carried by a moving fluid (in this case, combustion gases).