Metallic rectangular fins with thermal conductivity of (k =54 W/m K) is used to enhance the...

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Metallic rectangular fins with thermal conductivity of (k =54 W/m K) is used to enhance the heat transfer from water to air through a wall. The air and water sides' heat transfer coefficients are 17 W/mK and 170 W/m K, respectively. The thickness of the fins is 0.8 mm, and their length is 25 mm. While the spacing between the fins is 12.5 mm. By assuming that temperature drop through the wall is negligible, calculate the heat transfer rate from the bare wall (without fins) and then compare the percentage increase in heat transfer rate achieved by adding the fins to: (a) The water side (b) The air side (c) Both sides. (d) Comment on the results. Assume wall thermal conductivity is also (k =54 W/m K.) Water Air Air Tw L = 2.5 cm Water d = 1.25 cm t = 0.08 cm Case (a) Case (b) Air Water Case (c) Metallic rectangular fins with thermal conductivity of (k =54 W/m K) is used to enhance the heat transfer from water to air through a wall. The air and water sides' heat transfer coefficients are 17 W/mK and 170 W/m K, respectively. The thickness of the fins is 0.8 mm, and their length is 25 mm. While the spacing between the fins is 12.5 mm. By assuming that temperature drop through the wall is negligible, calculate the heat transfer rate from the bare wall (without fins) and then compare the percentage increase in heat transfer rate achieved by adding the fins to: (a) The water side (b) The air side (c) Both sides. (d) Comment on the results. Assume wall thermal conductivity is also (k =54 W/m K.) Water Air Air Tw L = 2.5 cm Water d = 1.25 cm t = 0.08 cm Case (a) Case (b) Air Water Case (c)