Problem: A cylindirical ball of stainless steel

10cm

in diameter is removed from an annealing furnace where it has been maintained at

980\\\\deg C

. It is placed in air at

30\\\\deg C

to cool. If the surface heat transfe coefficient is

11(W)/(m)\\\\deg C

, a) What is the centerline temperature after

2h

has passed? b) If the cylinder is placed in a vacuum eture at

30\\\\deg C

, what is your answer?

Problem: A cylindirical ball of stainless steel 10cm in diameter is removed from an annealing furnace where it has been maintained at 980C. It is placed in air at 30C to cool. If the surface heat transfe coefficient is 11W/m2C, a) What is the centerline temperature after 2h has passed? b) If the cylinder is placed in a vacuum eture at 30C, what is your