Problem 1 A long 10-cm-diameter steam pipe whose external surface temperature is 110 °C passes through some open area that is not protected against the winds. Determine the rate of heat loss from the pipe per unit of its length when the air is at 1 atm pressure and 10 °C and the wind is blowing across the pipe at a velocity of 8 m/s. (The steam pipe is exposed to windy air. The properties of air are determine at the average film temperature of and 1 atm pressure: k = 0.02808 W/m K, Pr = 0.7202, v=1.896 x 10-5 m²/s) 7,110°C V = 8 m/s T-10°C- Wind D=0.1m