Example 3.3 a A heat exchange surface that employs a spine triangular fin (i.e., a cone-shaped fin) is to be made using additive manufacturing. The filled polymer used in the process has a conductivity of k = 8.3 W/m-K. The base of the mone has diameter D = 5 mm and the length of the cone is L = 6 cm. The base and ambient temperatures are Tg = 60C and T. = 30C. respectively. The heat transfer coefficient is h = 35 W/m-K. To Prob#1. Modify the EES code given for example 3.3 for a circular cross section using the same given information. Obtain the following solutions. 1.1 fin efficiency using the built-in-function for a circular fin 1.2 fin efficiency using the theoretical equation for an insulated fin tip 1.3 effectiveness of the fin - fin heat transfer rate calculated using built-in-function for efficiency 1.4 effectiveness of the fin - fin heat transfer rate calculated using the theoretical equation for efficiency for an insulated fin tip