A 60 cm-long, 3 cm-diameter AISI 1010 steel rod is welded to a furnace wall and passes through 20 cm of insulation before emerging into the surrounding air. The faurnace wall is at 3000C and the air temperature is 200C. Estimate the temperature of the bar tip if the heat transfer coefficient between the rod and air is taken to be 13 W/m2 K. Furnace wall -20 cm- Insulation 3 cm diameter AISI 1010 steel rod 60 cm Air

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