A 1 shell-pass, 6 tube-pass shell and tube heat exchanger uses 20 kg/s of river water at 10o C, on the shell side, to cool 8 kg/s of processed water flowing at 2 m/s from 80o C on the tube side. The overall heat transfer coefficient is 85 W/m 2 -K and exchanger surface area is 200 m 2 . At what temperature would the process water and the coolant (i.e. the river water) be? Specific heat capacity of water = 4.184 J/go C (Answer: Thot, o = 53.4°C, Tcold, o = 20.6°C) Practice Question 5. Hot water in shell side at an inlet temperature of 11
A 1 shell-pass, 6 tube-pass shell and tube heat exchanger uses 20 kg/s of river water at 10o C, on the shell side, to cool 8 kg/s of processed water flowing at 2 m/s from 80o C on the tube side. The overall heat transfer coefficient is 85 W/m 2 -K and exchanger surface area is 200 m 2 . At what temperature would the process water and the coolant (i.e. the river water) be? Specific heat capacity of water = 4.184 J/go C (Answer: Thot, o = 53.4°C, Tcold, o = 20.6°C) Practice Question 5. Hot water in shell side at an inlet temperature of 11
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter10: Heat Exchangers
Section: Chapter Questions
Problem 10.18P
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Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Question
A 1 shell-pass, 6 tube-pass shell and tube heat exchanger uses 20 kg/s of river
water at 10o C, on the shell side, to cool 8 kg/s of processed water flowing at 2
m/s from 80o C on the tube side. The overall heat transfer coefficient is 85
W/m 2 -K and exchanger surface area is 200 m 2 . At what temperature would the
process water and the coolant (i.e. the river water) be?
Specific heat capacity of water = 4.184 J/go C
(Answer: Thot, o = 53.4°C, Tcold, o = 20.6°C)
Practice Question
5. Hot water in shell side at an inlet temperature of 116°C and an outlet
temperature of 49°C is used to heat water flowing in tube side at 2.5 kg/s from
21°C to 55°C in a one-shell-pass, two-tube-pass heat exchanger. The outside
surface area of the tubes is found to be Ao = 9.5 m2. Assuming water has a
specific heat Cp = 4187 J/kg-°K, determine the mean temperature difference
LMTD, and the overall heat-transfer coefficient Uo.
(Answer : 42.4°Cx0.82 = 34.8°C, 1078.6 W/m2 K
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