1-Find the heat transfer coefficient on the shell side in W/m2-K using the Donohue equation.
2-Find the mass velıcity (Gb) in kg/m2-s.
3-Find the mass velocity (Ge) in kg/m2-s.
A shell and tube heat exchanger with (1-1) configuration is used to cool n-propanol from 90°C to 40°C at a mass flow rate of 35 kg/s. The heat exchanger consists of 553 tubes arranged in a square pattern with a tube outer diameter of 3/4 in, BWG 12, and a pitch of 1 in. n-propanol flows on the shell side, while water flows through 0.14 the tubes. Assume ( ≈ 1 and fb-0.1955, Baffle spacing (B):0.61 m Properties of n-propanol at 65°C is provided below: k, W/m-K Pr µ, kg/m-s 0.15 16 0.0008