Brayton cycle

The Brayton cycle the basic thermal power cycle implemented in gas turbines. ASCEND provides support for modelling Brayton cycles with a range of models of increasing complexity.

The models are provided in the file models/johnpye/brayton.a4c

See also Combined-cycle gas turbine

Split Brayton Cycle

This cycle has been identified as highly efficient when the working gas is supercritical carbon dioxide (sCO2). The configuration is shown below.

Split Brayton cycle configuration (Figure: Rachel Hogan)

The model brayton_split_co2, contained in the file models/johnpye/brayton_split.a4c, implements this cycle. The T-s diagram of the cycle in our default configuration is shown below:

T-s diagram for the split Brayton cycle

Regenerative Brayton cycle

Regenerative Brayton cycle configuration (Figure: Rachel Hogan)

This cycle is implemented in the model brayton_regen, contained in the file models/johnpye/brayton_fprops.a4c. The T-s diagram of the cycle in our default configuration is shown below:

T-s diagram for the regenerative Brayton cycle

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