Question

Ethylene glycol is to be cooled from 60 to 40c in a 3cm diameter tube. The wall temperature is maintained constant at 20c. The glycol enters the tube with a velocity of 10m/s calculate the length of the tube necessary to accomplish this cooling. =1094

Answer 1

http://web.abo.fi/fak/tkf/at/Courses/Basics_in_Process_Design/C&R%20vol6%20answers/Chapter12.pdf