A counter flow plate heat exchanger is used to cool milk using water. Water flowing at a rate of 20 L / min at 00 Milk enters the system at 33oC at a rate of 1 L / min leaves the system at 4oC. Total heat transfer area A = 1 m2. Show all your calculations step by step and declare all your assumptions. Assume constant Cp for milk (3.93 kJ/kg*K) and water (4.18 kJ/kg*K) and constant density for milk (1035 kg/m3) and water (998 kg/m3) Assuming there is no heat loss to surroundings calculate exit temperature of water. Calculate overall heat transfer coefficient.

Introduction to Chemical Engineering Thermodynamics
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ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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A counter flow plate heat exchanger is used to cool milk using water. Water flowing at a rate of 20 L / min at 00 Milk enters the system at 33oC at a rate of 1 L / min leaves the system at 4oC. Total heat transfer area A = 1 m2. Show all your calculations step by step and declare all your assumptions.
Assume constant Cp for milk (3.93 kJ/kg*K) and water (4.18 kJ/kg*K) and constant density for milk (1035 kg/m3) and water (998 kg/m3)

  1. Assuming there is no heat loss to surroundings calculate exit temperature of water.
  2. Calculate overall heat transfer coefficient.
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