A single fin increases heat transfer from a flat surface by 194 W. The surface area...

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A single fin increases heat transfer from a flat surface by 194 W. The surface area of the fin is 0.06 m and the temperature at the base of the fin is 675 K. The surrounding fluid is at 305 K and the heat transfer coefficient between the surface and the fluid is 12 W/mK. What is the efficiency of the fin? Give your answer as a percentage to the nearest integer (e.g. 12.6 % would be given as 13). A single fin increases heat transfer from a flat surface by 194 W. The surface area of the fin is 0.06 m and the temperature at the base of the fin is 675 K. The surrounding fluid is at 305 K and the heat transfer coefficient between the surface and the fluid is 12 W/mK. What is the efficiency of the fin? Give your answer as a percentage to the nearest integer (e.g. 12.6 % would be given as 13).