Engineering, 14.09.2019 02:30 daplol22222
Amultistage axial flow compressor is required for compressing air at 20°c, through a pressure ratio of 5, each stage is to be 50% reaction and mean blade speed 275 m/s. flow co-efficient is 0.5 and stage loading factor is 0.3 (taken constant for all stages for simplicity). a) determine the flow angles and number of stages required if polytropic efficiency is 59%. take cp =1.005 kj/kg/k. b) calculate overall efficiency.
Answers: 2
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Engineering, 04.07.2019 18:10
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
Amultistage axial flow compressor is required for compressing air at 20°c, through a pressure ratio...
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