Explanation:
Fin efficiency can be define as the ratio of actual flow of to the maximum flow of heat through fins.
So in short form we can say that
[tex]\eta _{f}=\dfrac{q_{actual}}{q_{max}}[/tex]
Lets take infinite long fin to understand the all factors which affect the fin efficiency
So efficiency of long fin given as
[tex]\eta _{fL}=\dfrac{1}{mL}[/tex]
And we know that
[tex]m = \sqrt{\dfrac{hP}{KA}}[/tex]
So from we can say that for better efficiency the heat transfer coefficient will be low and conductivity for fin should be high.
