In fabrication process, steel components are formed hot and then quenched in water. Consider 2 m long, 0.2 m diameter steel cylinder (k = 40 W/m.°C, a = 10-5 m² /s), initially at 400 °C, that is suddenly quenched in water at 50 °C. If heat transfer coefficient is 200 W/m². K, calculate the following 20 min min after immersion: a) center temperature, b) surface temperature, c) The heat transferred to the water during the initial 20 min.

In fabrication process, steel components are formed hot and then quenched in water. Consider 2 m long, 0.2 m diameter steel cylinder (k = 40 W/m.°C, a = 10-5 m² /s), initially at 400 °C, that is suddenly quenched in water at 50 °C. If heat transfer coefficient is 200 W/m². K, calculate the following 20 min min after immersion: a) center temperature, b) surface temperature, c) The heat transferred to the water during the initial 20 min.

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.39P

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