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Compression Ratio Vs. Compression Pressure

Compression Pressure. Compression Ratio. Compression Ratio Vs. Compression Pressure. Definition: __________________________________________________________________________________________. Definition: __________________________________________________________________________________________.

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Compression Ratio Vs. Compression Pressure

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  1. Compression Pressure Compression Ratio Compression Ratio Vs. Compression Pressure Definition:__________________________________________________________________________________________ Definition: __________________________________________________________________________________________ Boyle’s law: ______________________________________________________ Isothermal: ______________________________________________________ How is it obtained?______________________________________________________ How is it obtained? ______________________________________________________ Adiabatic: __________________________________________________ Typical range of values:__________________ Typical range of values: __________________

  2. Solve the following problem • An engine has a static compression ratio of 9:1 • What would the cylinder pressure be if compression was perfectly isothermal? (assume no leakage) Pcompression =C.R. X Patmospheric • What would the cylinder pressure be if compression was perfectly Adiabatic? (assume no leakage) Pcompression =Patmospheric X C.R.1.4 • If this engine made 200 p.s.i.g. on the compression tester, would it be closer to isothermal or adiabatic compression? • What is the adiabatic index used in this formula? • What does the adiabatic index describe?

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