Engineering, 11.07.2019 05:10 hannah1072
Air is compressed by a compressor from v1= 1.0 m^3/kg to v2= 0.71 m^3/kg in a reversible, isothermal process. the air temperature is maintained constant at 25 °c during this process as a result of heat transfer to the surroundings. air moves through the compressor at a rate of m 1 kg/s. a)- determine the entropy change of the air per kg of air. b)- what is the power required by the compressor? c)- what is the rate at which entropy leave the compressor?
Answers: 2
Engineering, 04.07.2019 18:10, genyjoannerubiera
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Engineering, 04.07.2019 18:20, kodyclancy
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
Engineering, 06.07.2019 02:30, Nonniel0v3
An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?
Answers: 3
Air is compressed by a compressor from v1= 1.0 m^3/kg to v2= 0.71 m^3/kg in a reversible, isothermal...
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