Diesel Cycle Efficiency Calculator

Diesel Cycle Efficiency Equation

$$ \eta = 1- \frac{1}{r^{\gamma - 1}} \left( \frac{\rho^\gamma - 1}{\gamma (\rho - 1)} \right) $$ where:

η = Efficiency (Dimensionless)

r = Compression Ratio (Dimensionless)

γ = Heat Capacity Ratio (Dimensionless)

ρ = Cutoff Ratio (Dimensionless)

Calculator

Property to Calculate:

Efficiency (η):

Compression Ratio (r):

Heat Capacity Ratio (γ):

Cutoff Ratio (ρ):

Equation Assumptions

The working fluid behaves as an ideal gas.
Compression and expansion stages are adiabatic.
There are no heat losses to surroundings.
Specific heats remain constant.