Nitrogen gas enters a diffuser at 100 kPa and 1108C with a
Chapter 8, Problem 8131(choose chapter or problem)
Nitrogen gas enters a diffuser at 100 kPa and 1108C with a velocity of 205 m/s, and leaves at 110 kPa and 45 m/s. It is estimated that 2.5 kJ/kg of heat is lost from the diffuser to the surroundings at 100 kPa and 278C. The exit area of the diffuser is 0.04 m2 . Accounting for the variation of the specific heats with temperature, determine (a) the exit temperature, (b) the rate of exergy destruction, and (c) the second-law efficiency of the diffuser.
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