4. Hot oil (cp= 2.5 kJ/kg-K) at 125 C with a flow rate of 97 kg/min is used in a shell-and-tube heat exchanger with two-shell passes and two- tube passes to heat 57 kg/min of water which enters the tube at 30 C. The area of the heat exchanger is 15 m2. If the overall coefficient of heat transfer is 260 W/m2-K, calculate the exit temperatures of (a) oil (2 dp); (b) water (1 dp) and (c) the heat transferred, in kW(1 dp).

4. Hot oil (cp= 2.5 kJ/kg-K) at 125 C with a flow rate of 97 kg/min is used in a shell-and-tube heat exchanger with two-shell passes and two- tube passes to heat 57 kg/min of water which enters the tube at 30 C. The area of the heat exchanger is 15 m2. If the overall coefficient of heat transfer is 260 W/m2-K, calculate the exit temperatures of (a) oil (2 dp); (b) water (1 dp) and (c) the heat transferred, in kW(1 dp).

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 10.13P

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