A thin-walled container with a hot process fluid at 50C is placed in a quiescent, cold water bath at 100C. Heat transfer at the inner

A thin-walled container with a hot process fluid at 50°C is placed in a quiescent, cold water bath at 100C. Heat transfer at the inner and outer surfaces of the container may be approximated by free convection from a vertical plate.

(a) Determine the overall heat transfer coefficient between the hot process fluid and the cold water bath. Assume the properties of the hot process fluid are those of water.

(b) Generate a plot of the overall heat transfer coefficient as a function of the hot process fluid temperature T∞,h for the range 20 to 60°C, with all other conditions remaining the same.

Thin-walled contairer Hot process T = 50C Cold water bath L= 200 mm T= 10C