Simulation dataset for the thermodynamic optimization of a triple combined cycle power plant with a bottoming Organic Rankine Cycle

For each point the dataset reports the imposed boundary conditions, the raw EBSILON outputs (power, stack temperature, pinch point, evaporator conductance, condenser duty, turbine enthalpies and volume flow rates) and a set of derived quantities: isentropic enthalpy drop, turbine size parameter, volume flow ratio, exergy recovered from the flue gas and second-law efficiency of the bottoming cycle. A Python script is included that recomputes all derived quantities from the raw EBSILON outputs and reproduces the corresponding figures of the associated article, so that every derived value can be independently verified.

The data support the finding that, once a realistic pinch-point constraint is enforced, the thermodynamic performance of the six candidate fluids is almost indistinguishable above a stack temperature of about 100 °C, and that the selection of the working fluid is instead governed by the achievable stack temperature, the size of the expander and the required evaporator surface.