Water (cp = 4182 J/Kg.K) at a flow rate of 5000 Kg/hr is heated from 10oC to 35oC in an oil cooler by engine oil (cp = 2072 J/Kg.K) with an inlet temperatureof 85oC and a flow rate of 6000 Kg/hr. Take the overall heat transfer coefficient to be 3500 W/m2.K. What are the areas required for: a. Parallel Flow. b. Counter Flow

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.54P
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Water (cp = 4182 J/Kg.K) at a flow rate of 5000 Kg/hr is heated from 10oC to 35oC in an oil cooler by engine oil (cp = 2072 J/Kg.K) with an inlet temperatureof 85oC and a flow rate of 6000 Kg/hr. Take the overall heat transfer coefficient to be 3500 W/m2.K. What are the areas required for:
a. Parallel Flow.
b. Counter Flow

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