Determine the overall surface efficiency

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Reference no: EM13705969

A 30-cm-long, 1-cm-diameter aluminium fin (k=237 W/mÂ·K) is exposed to an environment at 22^oC. The base temperature of the fin is maintained at 80 oC. The heat transfer coefficient between the rod and the surrounding air is 11 W/m2Â·K. If the fin can be assumed to be very long, (a) determine the efficiency of a single fin (Î·s). (b) If 100 of such fins form a 10 x 10 fin array on 21 cm x 21 cm base plate surface, determine the overall surface efficiency (Î·o).

Reference no: EM13705969

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