Sankey diagrams are suitable for visualizing the energy flows between different components of a gas turbine. The width of the connections represents the size of the energy flow, the product of mass flow and specific enthalpy. Grassmann diagrams show exergy flows, the product of mass flow and specific exergy.
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Energy flows in a Two Spool Unmixed Flow Turbofan
Interestingly, the energy flows within the turbofan are much greater than the useful energy at the engine's exhaust. It is also evident that the amount of energy flowing through a component has little to do with its size.
Exergy destruction in a Two Spool Unmixed Flow Turbofan
