Calculate the rate of heat transfer through the composite wall in Problem 1.34 if the temperature difference is 25?C and the contact resistance between the sheets of wood is 0.005 m2 K/W.Problem 1.34: To reinforce a solid wall consisting of two layers, each 2.5 cm thick, mild steel nails were driven through it. If the total cross sectional area of the nails is 0.5% of the wall area, determine the unit thermal conductance of the composite wall and the percent of the total heat flow that passes through the nails when the temperature difference across the wall is 25?C. Neglect contact resistance between the wood layers.GIVENWood wallTwo layers 0.025 m thick each, nailed togetherNail cross sectional area of nails = 0.5% of wall areaTemperature difference (??T) = 20?CContact resistance (A Ri) = 0.005 (m2 K)/WASSUMPTIONSOne dimensional heat transfer through the wallSteady stateprevails

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AT = 25°C Nals Wood 2.5 in