Help Please! A pin fin of uniform, cross-sectional area is fabricated of an alum

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Help Please!

A pin fin of uniform, cross-sectional area is fabricated of an aluminum alloy (k =160 W/m K). The fin diameter is D = 4 mm, and the fin is exposed to convective conditions characterized by h = 220 W/m2 K. It is reported that the fin efficiency is eta f = 0.65. Determine the fin length L and the fin effectiveness epsilon f. Account for tip convection. The extent to which the tip condition affects the thermal performance of a fin depends on the fin geometry and thermal conductivity, as well as the convection coefficient. Consider an alloyed aluminum (k = 180 W/m K)

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