Solution Manual Heat And Mass Transfer Cengel 5th Edition Chapter 3 File

$I=\sqrt{\frac{\dot{Q}}{R}}$

$h=\frac{Nu_{D}k}{D}=\frac{2152.5 \times 0.597}{2}=643.3W/m^{2}K$

A 2-m-diameter and 4-m-long horizontal cylinder is maintained at a uniform temperature of 80°C. Water flows across the cylinder at 15°C with a velocity of 3.5 m/s. Determine the rate of heat transfer.

$h=\frac{\dot{Q} {conv}}{A(T {skin}-T_{\infty})}=\frac{108.1}{1.5 \times (32-20)}=3.01W/m^{2}K$