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Pin fins of rectangular profile that are 1mm in diameter and 30mm in length are atatched to a 1mx1m surface which is maintained at 100

Pin fins of rectangular profile that are 1mm in diameter and 30mm in length are atatched to a 1mx1m surface which is maintained at 100 celcius.Fins are made of aluminum and exposed to air at 5 celcius.Calculat the total heat loss if the center to center distance is 4mm and the convection coefficient is 100W/m^^2.K.

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