Engine oil at a hundred degrees Fahrenheit passes through 1/8inch diameter tube at a volume flow rate of 50ft3/m . Ifthe surface temperature is 150 degrees F, what is the heat transferrate Q. Â
Q = ?????? Btu/h. Assume a smooth surface and the tube length is5 meters.
From the book use p (density) = 54.24lbm/ft3,,
Specific heat = 0.4809 Btu/(lbm*R)Â Â Â R=Rankin,
Thermal conductivity = k= 0.08207 Btu/(h*ft*R) Â Â
u = 7.617 * 10 -2 lbm/ft*s, u = fluid viscosity
Pr = 1607, Pr = Prandtl number
