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  3. consider a circular air duct (no insulation) with

Consider a circular air duct (no insulation) with a constant diameter of 10 cm and length...

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Mechanical Engineering

Consider a circular air duct (no insulation) with a constantdiameter of 10 cm and length of 1 m. The inlet condition is 40 degC and 20 m/s. The wall of the duct is at a constant temperature of25 deg C.

a) Find the exit temperature of the air flow. Report answer indeg C with 3 significant figures.

b) Find the rate of heat lost from the air flow. Report answerin kW with 3 significant figures.

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