= An infinite cylinder with ro 3 cm is initially at the uniform temperature of Ti = 10 °C. At this time, the cylinder is
Posted: Sun Jul 10, 2022 11:37 am
= An infinite cylinder with ro 3 cm is initially at the uniform temperature of Ti = 10 °C. At this time, the cylinder is dropped into a bath of hot water at T = 80 °C and convection heat transfer coefficient of h = 1500 W.m2. K-1. The thermal conductivity and diffusivity of cylinder are k 0.6 W.m-¹.K-¹ and a = 0.15 x 10-6 m². s-1, respectively. = solution must be laumped capacitance method A-Calculate the time required so that the temperature of the cylinder reaches 50 °C. B- Calculate the total heat transfer from the cylinder after 1 minute. the one term approximation for exact solution (Fo>0.2)