Brayton Cycle Efficiency Calculator

Efficiency (η):

Temperature at the start of compression process (T₁):

Temperature at the end of compression process (T₂):

Pressure at point 1 (P₁):

Pressure at point 2 (P₂):

Heat Capacity Ratio (γ):

How This Is Calculated

$$ \eta = 1- \frac{T_1}{T_2} \left( \frac{P_1^{\gamma - 1} - 1}{ P_2^{\gamma - 1} - 1} \right) $$ where:

η = Efficiency (Dimensionless)

T₁ = Temperature at the start of compression process (K)

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

P₁ = Pressure at point 1 (Pa)

P₂ = Pressure at point 2 (Pa)

γ = Heat Capacity Ratio (Dimensionless)

Assumptions

The system is in steady state.
Working fluid behaves as an ideal gas.
Compression and expansion stages are isentropic.
Mixing and combustion are perfect.

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Brayton cycle Heat

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