Otto Cycle Heat Added Calculator

Otto Cycle Heat Added Equation

$$ Q_{in} = m C_v (T_3 - T_2) $$ where:

Q_in = Heat added during combustion process (J)

m = Mass of the working fluid (air-fuel mixture) (kg)

C_v = Specific heat at constant volume (J/kg K)

T₂ = Temperature at the end of the compression stroke (K)

T₃ = Temperature after combustion (K)

Calculator

Property to Calculate:

Heat added during combustion process (Q_in):

Mass of the working fluid (m):

Specific heat at constant volume (C_v):

Temperature at the end of the compression stroke (T₂):

Temperature after combustion (T₃):

Equation 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.