Compare the fin efficiency and rate of heat transfer per unit width for straight aluminum fins with rectangular, triangular, and parabolic profiles. Compare fins with the same length (L = 25 mm) and thickness (t = 4 mm). The base temperature is 200 C, the air temperature is 15 C, and the convection coefficient is 45 W/m/K. Comment on the differences in overall heat transfer rate versus the amount of aluminum required for the fin. 1.0 cm = 200C 5 cm 5 cm 1 T. = 200C 5 cm 5 cm $0.525 cm