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Consider a thin electrical heater attached to a plate and backed by insulation Initially the heater and plate are at the temperature of the ambient air T∞ Suddenly the power to the heater is

Consider a thin electrical heater attached to a plate and backed by insulation. Initially, the heater and plate are at the temperature of the ambient air, T. Suddenly, the power to the heater is activated, yielding a constant heat flux at the inner surface of the plate.

 

(a) Sketch and label, on T – x coordinates, the temperature distributions: initial, steady-state, and at two intermediate times.

(b) Sketch the heat flux at the outer surface  as a function of time.

Jun 27 2020 View more View Less

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