PHIL 311 Lecture 19: Aug 29- Sep 10

10 cm long, 2 cm diameter copper rod (k = 380 W/m-K) is exposed to an environment at 25°C The base temperature of the rod is maintained at 200°C. The heat transfer coefficient between the rod and the surrounding air is 15 W/m2K. Determine the heat transfer rate from the rod to the surrounding air (W) when it is considered as a fin.

a) 10.5 W

b) 14.5 W

c) 12.3 W

d) 20.3 W

e) 16.8 W