Heat transfer rate to the charge/stock in a furnace does not depend upon the________________?
Correct answer: A. Type of fuels viz. solid, liquid or gaseous
- A. Type of fuels viz. solid, liquid or gaseous
- B. Flue gas temperature
- C. Emissivity of refractory walls
- D. Initial temperature of the charged stock
Explanation
The heat-transfer relation is governed directly by temperatures, area, and surface emissivity, not by whether the fuel is solid, liquid, or gaseous. Fuel type affects combustion and flue-gas conditions indirectly, but it is not a direct heat-transfer variable.
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