Consider the base plate of an 1200 W household iron with a thickness of L= 0.5 cm, base area of A=300 cm2, and thermal conductivity of k = 15 W/m °C. The inner surface of the base plate is subjected to uniform heat flux generated by the resistance heaters inside. When steady operating conditions are reached, the outer surface losses heat to the 1 surrounding at T = 20 °C by convection Taking h= 80 W/m² °C and disregarding the heat loss by radiation (a) obtain a relation for the variation of temperature in the base plate by solving the differential equation, and (b) evaluate the inner and the outer surface temperature. .

Consider the base plate of an 1200 W household iron with a thickness of L= 0.5 cm, base area of A=300 cm2, and thermal conductivity of k = 15 W/m °C. The inner surface of the base plate is subjected to uniform heat flux generated by the resistance heaters inside. When steady operating conditions are reached, the outer surface losses heat to the 1 surrounding at T = 20 °C by convection Taking h= 80 W/m² °C and disregarding the heat loss by radiation (a) obtain a relation for the variation of temperature in the base plate by solving the differential equation, and (b) evaluate the inner and the outer surface temperature. .

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.32P

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