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An electronic package in the shape of a sphere with an outer diameter of 100 mm is placed in a large laboratory room The surface emissivity of the package can assume three different values

An electronic package in the shape of a sphere with an outer diameter of 100 mm is placed in a large laboratory room. The surface emissivity of the package can assume three different values (0.2, 0.25, and 0.3). The walls of the room are maintained at a constant temperature of 77 K. The electronics in this package can only operate in the surface temperature range of 40°C ≤ Ts ≤ 85°C. Determine the range of power dissipation (W) for the electronic package over this temperature range for the three surface emissivity values (ε). Plot the results in terms of W · (W) vs. Ts(°C) for the three different values of emissivity over a surface temperature range of 40 to 85°C with temperature increments of 5°C (total of 10 data points for each ε value). Provide a computer generated graph for the display of your results and tabulate the data used for the graph. Comment on the results obtained. Simultaneous Heat Transfer Mechanisms

Jul 22 2020 View more View Less

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