Simple and Easy Explanation of Brayton Cycle

The cycle is named after American Engineer George Brayton.

  • A theoretical thermodynamic cycle describing the working of a constant pressure heat engine.
  • Gas turbines and Air-breathing jet engines use this cycle.
  • It is also called the “Joule cycle”.
  • It consists of two reversible adiabatic or isentropic process and two constant pressure process.

T-s diagram

P-v diagram

Efficiency is given by

η = 1- [1/rp((γ-1)/γ)]
where rp is Pressure Ratio and Gamma (γ) is Heat Capacities (Cp/Cv) Ratio

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