Acopper wire of diameter d 200 um and a total length 2l , Mechanical Engineering

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Acopper wire of diameter d 200 um and a total length 2l

A copper wire of diameter D = 200 um and a total length 2L = 200 mm is stretched between two large substrates, each of which is at temperature Tb = 100 C. Air at temperature T = 20C is in cross flow over the wire, providing a convection heat transfer coefficient of h = 500 W/m^2. K

a) At what x location does the minimum wire temperature exist? What is the value of the temperature gradient dT/dx, at this location?

b) What is the convective heat loss from the wire?

c) What is the value of the minimum wire temperature?

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Mechanical Engineering: Acopper wire of diameter d 200 um and a total length 2l

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Mechanical Engineering: Acopper wire of diameter d 200 um and a total length 2l

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