5. A three-stage, single acting compressor is required to compress 135m of free air per hour...

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5. A three-stage, single acting compressor is required to compress 135m of free air per hour from 1bar to 64bar. Prove that with complete intercooling the stage pressure ratio should be equal to the cube root of the overall pressure ratio for the required power to a minimum. Calculate the power needed in each case, assuming = 1.3. n = If the mean piston speed is to be 140 m/min, calculate the piston areas, neglecting clearance. State any assumptions made. [18.4 kW, 321 cm, 80.2 cm, 20.1 cm ] 5. A three-stage, single acting compressor is required to compress 135m of free air per hour from 1bar to 64bar. Prove that with complete intercooling the stage pressure ratio should be equal to the cube root of the overall pressure ratio for the required power to a minimum. Calculate the power needed in each case, assuming = 1.3. n = If the mean piston speed is to be 140 m/min, calculate the piston areas, neglecting clearance. State any assumptions made. [18.4 kW, 321 cm, 80.2 cm, 20.1 cm ]

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To prove that with complete intercooling the stage pressure ratio should be equal to the cube root of the overall pressure ratio for the required powe... View the full answer