Answer to Question #224429 in Mechanical Engineering for sid

Question

Water at the rate of 4 kg/s is heated from 40o

C to 55o

C in a shell and tube heat 

exchanger. On the shell side one pass is used with water as the heating fluid 

and at a mass flow rate of 2kg/s, and entering the heat exchanger at 95o

C. The 

overall heat transfer coefficient is 1500 W/m2

K. and the average water velocity 

in the 2 cm diameter tubes is 0.5m/s. Because of space limitations, the tube 

length must not exceed 3 m. Calculate the number of tube passes , the number 

of tubes per pass and the length of the tubes, keeping in mind the design 

constraints

Answer 1

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