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Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 250C. The fin base thickness is 2 mm, and its

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Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 250C. The fin base thickness is 2 mm, and its length is 6 mm. The system is in ambient air at a temperature of 20C, and the surface convection coefficient is 40 W/m.K. a. What are the fin efficiency and effectiveness? b. What is the heat dissipated per unit width by a single fin

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