🔍 Key Concepts

• Gas flow path around the superheater tubes (is heat mainly by radiation from the furnace, or convection from hot gases passing over the bank?) • Shape and orientation of the superheater tubes – look for a U-bend and whether it lies horizontally or vertically • Location of the superheater bank relative to the boiler drum and generating tubes (is it above the main heating surface "deck" or built in as part of it?)

💭 Think About

• Trace the steam path from inlet header to outlet header in the illustration and decide if the tubes form a horizontal or vertical U-shape overall • Look at where the superheater bank is placed in relation to the main generating tubes and furnace – is it a separate bank above them, or integrated within the main tube bank? • Consider whether the primary heating mechanism for this superheater appears to be convective gas flow past the tubes or radiant heat directly from the furnace

✅ Before You Answer

• Identify whether the U‑bend of the superheater is oriented horizontally or vertically in the drawing • Confirm if the entire superheater bank is located over the main tube bank (overdeck) or within it as an integral part • Decide if the construction suggests a separate, convection‑heated bank or an integral, built‑in assembly before choosing between the "convection‑type" and "integral‑type" options