Useful Formulas

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Compressor Pulley Diameter

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motor pulley diameter x motor RPM / compressor RPM

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Compressor Pulley Diameter

Posted by Ed Powell on

motor pulley diameter x motor RPM / compressor RPM

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Electrical Cost

Posted by Ed Powell on

HP x .746 x hours x Kw cost  /  motor efficiency

Example: 50 HP air compressor that runs 8 hours a day 5 days a week for a year with a $.06 Kw electric rate and a 90% efficient electric motor.

50 HP x .746 x 2,080 hours x $.06 / .90 = $5,172.26 per year

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Electrical Cost

Posted by Ed Powell on

HP x .746 x hours x Kw cost  /  motor efficiency

Example: 50 HP air compressor that runs 8 hours a day 5 days a week for a year with a $.06 Kw electric rate and a 90% efficient electric motor.

50 HP x .746 x 2,080 hours x $.06 / .90 = $5,172.26 per year

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Receiver sizing by horsepower

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Receiver sizing by horsepower

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Pressure drop calculator

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Receiver sizing by volume

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Receiver sizing by volume

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