(B) A cylinder made of aluminum has a mass of 7 Kg and initially at a temperature of 250 °C is suddenly placed in a controlled environment in which the temperature is maintained at 15 'C. The convection heat transfer coefficient is 90 W/(m2.'C ). Calculate the time required to cool the cylinder to 100 °C. Use the lumped capacity method. Take p=2707 kg/m³, C=896 J/kg` C, L=15cm.

(B) A cylinder made of aluminum has a mass of 7 Kg and initially at a temperature of 250 °C is suddenly placed in a controlled environment in which the temperature is maintained at 15 'C. The convection heat transfer coefficient is 90 W/(m2.'C ). Calculate the time required to cool the cylinder to 100 °C. Use the lumped capacity method. Take p=2707 kg/m³, C=896 J/kg` C, L=15cm.

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.36P

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