A steel plate with a thickness of 11 cm is placed in a heat treatment furnace at a temperature of 280 °C, while the temperature is 15 °C. Heat transfer coefficient between plate surface and air inside furnace 150W / (m2.K), the heat conduction coefficient of the plate is 25W/(m.K), since the Thermal Emission coefficient is 2,4. 10-5 m2 / s a) calculate the time it takes for the plate surface temperature to be 200°C? b) calculate the heat transferred to the unit area of the plate during this time?

A steel plate with a thickness of 11 cm is placed in a heat treatment furnace at a temperature of 280 °C, while the temperature is 15 °C. Heat transfer coefficient between plate surface and air inside furnace 150W / (m2.K), the heat conduction coefficient of the plate is 25W/(m.K), since the Thermal Emission coefficient is 2,4. 10-5 m2 / s a) calculate the time it takes for the plate surface temperature to be 200°C? b) calculate the heat transferred to the unit area of the plate during this time?

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.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.14P

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