3. An array of 10 silicon chips, each of length L = 10 mm on a side, is insulated on one surface and cooled on the opposite surface by atmospheric air in parallel flow with T = 24°C and u.. 40 m/s. When in use, the same electrical power is dissipated in each chip, maintaining a uniform heat flux over the entire cooled surface. = 10 mm Isups to stay into 10 If the temperature of each chip may not exceed 80°C, what is the maximum allowable power per chip? What iq is the maximum allowable power if a turbulence promoter is used to trip the boundary layer at the lead- ing edge? (A turbulator is a device to make sure the flow becomes turbulent from the location of this turbulator.)

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Q: 30°C

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