The rate of heat transfer per unit area from a metal plate is 1000 W/ m 2 . The surface temperature.

The blame of ardor transmit per part area from a metal concoction is 1000 W/ m 2 . The deportment sky of the concoction is 120°C, and ambient sky is 20°C ( Fig. E4.4 ). Estimate the convective ardor transmit coeffi cie