Question

Pin fins are provided to increase the heat transfer rate from a hot surface.

Two arrange are available :

i) S fins of 1MM mm length and ii) 1M fins of SM mm length.

By calculationI show that which of these arrangement is more effective. Data : k

for fin material = 3MM W/(m.K)I h = OM W/(mO

.K)I cross-section area of fin = O cmO

I

perimeter of fin = 5 cmI the temperature of hot surface to which fin are attached

is 5M3 KI the surrounding air temperature is 3M3 K. Assume that the ends of the

fins to be insulated​

Answer 1

Answer:

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