A 1600-W iron plate has a thickness of 5 mm, cross-sectional area of 300 cm^2. The room convection heat transfer coefficient is 25 W/(m^2K) with a temperature of 27 C. Determine the time required for the iron plate to drop from 1000 C to 50 C? Density, specific heat value and conductivity of the plate are 2650 kg/m^3, 900 J/(kgk) and 150 W/(mk), respectively.

A 1600-W iron plate has a thickness of 5 mm, cross-sectional area of 300 cm^2. The room convection heat transfer coefficient is 25 W/(m^2K) with a temperature of 27 C. Determine the time required for the iron plate to drop from 1000 C to 50 C? Density, specific heat value and conductivity of the plate are 2650 kg/m^3, 900 J/(kgk) and 150 W/(mk), respectively.

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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.29P

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