3. A certain two-stage air compressor has air cylinders 10 in. and 16 in. in diameters,...

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3. A certain two-stage air compressor has air cylinders 10 in. and 16 in. in diameters, a stroke of 14 in., and a piston rod 1.75 in. in diameter. Air entered the low pressure cylinder at 80°F and left at 220°F, entered the high pressure cylinder at 97°F and left at 219°F. The free air (at conditions surrounding the compressor of 29.32 in. Hg and 80°F) compressed was 261 cfm as measured by a nozzle discharging from receiver. The indicated horsepower were 54.6 and 45.5 for the steam and air cylinders, respectively. Determine: a. adiabatic air horsepower for single-stage compressor b. adiabatic air horsepower for two-stage compressor c. displacement of air compressor, in cfm d. volumetric efficiency of the compressor e. mechanical efficiency of the compressor f. compression efficiency 3. A certain two-stage air compressor has air cylinders 10 in. and 16 in. in diameters, a stroke of 14 in., and a piston rod 1.75 in. in diameter. Air entered the low pressure cylinder at 80°F and left at 220°F, entered the high pressure cylinder at 97°F and left at 219°F. The free air (at conditions surrounding the compressor of 29.32 in. Hg and 80°F) compressed was 261 cfm as measured by a nozzle discharging from receiver. The indicated horsepower were 54.6 and 45.5 for the steam and air cylinders, respectively. Determine: a. adiabatic air horsepower for single-stage compressor b. adiabatic air horsepower for two-stage compressor c. displacement of air compressor, in cfm d. volumetric efficiency of the compressor e. mechanical efficiency of the compressor f. compression efficiency

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a Adiabatic air ... View the full answer