Insulated duct of varying cross-sectional area

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Reference no: EM13719318

Air at 300 kPa, 63^oC, and a velocity of 423 m/s enters an insulated duct of varying cross-sectional area. The air exits at 150 kPa, 88^oC. At the inlet, the cross-sectional area is 6.57 cm^2.

Assuming the ideal gas model for the air and variable specific heats, determine:

(a) the exit velocity, in m/s, and

(b) the rate of entropy production within the duct, in kW/K if the mass flow rate of air is 0.5 kg/s.

Reference no: EM13719318

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