A billet of steel of the form of a parallelepiped with dimensions 2 mx 2 m x 5 m originally at 300°C is placed in a radi
Posted: Sat Feb 26, 2022 11:42 am
A billet of steel of the form of a parallelepiped with dimensions 2 mx 2 m x 5 m originally at 300°C is placed in a radiant furnace, where the furnace temperatue is held at 1200°C. Determine the temperature at the centre after 25 min. Take a = 6.39 x 10-6 m2/s, k = 34.9 W/m K and h = 232.6 W/m2 K.