Question

In your lab you have an oven to melt refractory material (e.g., metals that have a high melting point). One of your colleagues accidentally left the door to the oven open while set to operate at 1200. oC. The opening of the oven has area of 1.23 m2 and by the time you discover the mistake, the ambient room temperature is 35.3 oC. Assuming the emissivity of the oven is 0.75, what is the rate at which heat is transferred to the room?

0.108 kW

474 kW

0.0753 kW

108 kW

246 kW

Answer 1