(5.00 Points) 11 - 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 90C to 40C 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 the tubes. Assume 0.14 (2) 1 and f-0.1955, Baffle spacing (B):0.61 m a) b) C) d) e) f) Properties of n-propanol at 65C is provided below: 6.0 2 150 665 255 455 250 311 700 h) 560 k, W/m-K Pr , kg/m-s 0.15 16 0.0008

11 - 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 90C to 40C at a mass flow rate of 35kg/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 1in. n-propanol flows on the shell side, while water flows through the tubes. Assume (w)0.141 and fb=0.1955, Baffle spacing (B):0.61m Properties of n-propanol at 65C is provided below: a) 150 b) 665 c) 255 d) 455 e) 250 f) 311 g) 700 h) 560