D Air L -A,, T, A,, T, (a) Determine the maximum possible heat removal rate through the fin. (b) What fin length would provide a close approxima- tion to the heat rate found in part (a)? Hint: Refer...

Extracted text: D Air L -A,, T, A,, T, (a) Determine the maximum possible heat removal rate through the fin. (b) What fin length would provide a close approxima- tion to the heat rate found in part (a)? Hint: Refer to Example 3.9. (c) Determine the fin effectiveness, &p (d) What is the percentage increase in the heat rate from A, due to installation of the fin? 11t


Extracted text: 7.53 Air at 27°C and a velocity of 5 m/s passes over the small region A, (20 mm X 20 mm) on a large surface, which is maintained at T, = 127°C. For these conditions, 0.5 W is removed from the surface A,. To increase the heat removal rate, a stainless steel (AISI 304) pin fin of diameter 5 mm is affixed to A,, which is assumed to remain at T, = 127°C.