An AISI 1010 carbon steel plate of 1 by 1 m size and of 6 mmthickness is hung vertically after a heat treatment to 300°Cuniform temperature. It is cooled by ambient air at 20°C flowingparallel to the plate in transverse direction.
a) Considering both forced and natural convection, for 8 m/stransverse air velocity, determine the rate of heat transfer fromthe plate and the corresponding instantaneous rate of change of theplate temperature.
b) For the transverse air velocities in 1-15 m/s range, plot theheat transfer coefficients from the plate associated with forcedconvection, natural convection and mixed convection on the samegraph.