A thick metal slab (rho = 7800 kg/m3
, C = 480 J/kg.K, k = 50 W/m.K) initially at
300℃ is cooled by water jets impinging on one side of its surface. The water temperature
is 35℃, and the jets maintain a very large uniform heat transfer coefficient at the surface.
How long will it take for the temperature to reach 50℃ at a distance of 25 mm from the
surface?
Answers
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Answer:
125
Explanation:
Because mm are so close to the surface
If you times the temperature plus the distance it should be around 125? Sorry am not sure
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