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Otto Cycle Comression Ratio Calculator






 

 

 


How This Is Calculated


$$ r = \frac{V_1}{V_2} $$ where:

r   =   Compression Ratio   (Dimensionless)

V1   =   Cylinder volume at the beginning of the compression stroke at bottom dead center   (kg/m³)

V2   =   Cylinder volume at the end of the compression stroke at top dead center   (kg/m³)


Assumptions


  • The working fluid behaves as an ideal gas.
  • Specific heats remain constant.
  • Compression and expansion processes are adiabatic.
  • There is perfect mixing of the air and fuel.


Related Calculators


Otto Cycle Efficiency Otto Cycle Heat Added (Combustion Process) Otto Cycle Heat Rejected (Exhaust Process) Otto Cycle Pressure Otto Cycle Temperature