Create an Account

Already have account?

Forgot Your Password ?

Home / Questions / Free convection heat transfer is sometimes quantified by writing Equation 420 as

Free convection heat transfer is sometimes quantified by writing Equation 420 as

Free convection heat transfer is sometimes quantified by writing Equation 4.20 as qconv = Skeff  ∆T1-2, where keff is an effective thermal conductivity. The ratio keff/k is greater than unity because of fluid motion driven by buoyancy forces, as represented by the dashed streamlines.

 

 

An experiment for the configuration shown yields a heat transfer rate per unit length of q’conv = 110 W/m for surface temperatures of T1 = 53°C and T2 = 15°C, respectively. For inner and outer cylinders of diameters d = 20 mm and D = 60 mm, and an eccentricity factor of z =10 mm, determine the value of keff. The actual thermal conductivity of the fluid is k = 0.255 W/m∙ K.

 

 

Jun 28 2020 View more View Less

Answer (Solved)

question Subscribe To Get Solution

Related Questions