Consider natural convection on a cylinder with L 60 cm D 5

Consider natural convection on a cylinder with L = 60 cm, D = 5 cm. Fluid is air at 1 atm. When T_w = 65 degree C and T_infinity = 21 degree C, Find q for vertical cylinder Find q for horizontal cylinder

Solution

b) for horizontal cylinder

Area = pi*D*L

Area = 3.14*0.05*0.6

= 0.0942 m^2

q = hA(Tw-Ts)

q = h*0.0942*(65-21)