Find heat loss per unit length of wire with insulation


An electrical wire having a diameter of 1.5 mm and covered with a plastic insulation (thickness = 2.5 mm) is exposed to air at 300 K, and h0 = 20 W/m2 K. The insulation has a k of 0.4 W/m K. It is assumed that the wire surface temperature is constant at 400 K and is not affected by the insulation. Find the heat loss per unit length of the wire with the insulation present.

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Mechanical Engineering: Find heat loss per unit length of wire with insulation
Reference No:- TGS0716065

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