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In: Mechanical Engineering

12-5. An air-cycle unit operating on the simple system is designed for the following   conditions: 15...


12-5. An air-cycle unit operating on the simple system is designed for the following  
conditions: 15 lb/min of conditioned air, air entering the turbine at 60 psia, cabin
pressure 14 psia, dry-air rated discharge temperature 20 F, and a turbine efficiency of 80 per
cent.
a. At what temperature does air enter the turbine?
b. How much power does the turbine supply to the fan?

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