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, 03.07.2019 19:30
When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line
Answers: 3
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:20
Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?
Answers: 2
Engineering, 04.07.2019 19:10
Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m
Answers: 1
Amultistage axial flow compressor is required for compressing air at 20°c, through a pressure ratio...
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