A pin fin of uniform cross-sectional area is fabricated of an aluminum alloy (k = 160W m-1 K-1 ). The fin diameter is D = 4 mm,

Question

4 years ago

15

A pin fin of uniform cross-sectional area is fabricated of an aluminum alloy (k = 160W m-1 K-1 ). The fin diameter is D = 4 mm,

and the fin is exposed to convective conditions characterized by h = 220W m-2 K-1 . It is reported that the fin efficiency is ?f = 0.65. Account for convection heat transfer at the fin tip.
Questions: (a) What is the length of the fin, L?

(b) What is the fin effectiveness ?f?

Engineering

1 answer:

disa [49] · Answer 1 · 2021-12-29T18:25:01+03:00

disa [49]4 years ago

4 0

Answer: (a) 36.18mm

(b) 23.52

Explanation: see attachment