Provision of fins on a given heat
transfer surface will be more if there are________ .
fewer number of thin fins
fewer number of thick fins
large number of thick fins
large number of thin fins
large number of thin fins
Increases in ratio of perimeter
Fins are worth keeping only when
effectiveness
is high
A = Area
P = Perimeter
Where, 'h' is the convective heat
transfer coefficient and also
.
Therefore, to have high effectiveness
of fins, fins must be thin.
Hence, the correct option is (D).
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