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Physics, 22.08.2019 16:10 miguel454545

Ashaft of carbon steel (aisi 1010) with a diameter of 0.1 m is heated in a gas furnace at 1200 k. the convection heat transfer coefficient is 100 w/m2. if the initial shaft temperature when entering the furnace is 300 k
a. how much time does it take for the center of the shaft to have a temperature of 800 k?
b. at the time of the answer (a) what is the difference in surface temperature and center of the axis?

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