(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A straight, rectangular fin made from 2024 aluminium has a thickness of t = 3mm and length L = 20mm. Base temperature is 100 °C and it is exposed to a fluid at 20 °C.

h = 60 W/m^2-K

k = 185 W/m-K

(a) Determine the heat transfer rate from the fin to the fluid per unit length

(b) Repeat (a) if the fin is made of copper (h = 400 W/m^2-K)

2. Relevant equations

η_{o}= 1 - (NAc/At) (1-η_{f})

A_{t}= NA_{c}+A_{b}

3. The attempt at a solution

n_{f}= tanh(mL_{c})/mL_{c}

(I know this equation is right, but I'm lost from this point forward. Any help would be excellent.)

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# Rectangular Fin Heat Transfer

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