We present a thermodynamic model for the prediction of the
performance records of a solar hybrid gas turbine power plant,
with the aim to deliver to the grid an steady power output. The
overall thermal efficiency depends on the efficiencies of the involved
subsystems and the required heat exchangers in a straightforward
analytical way. Numerical values for input parameters
are taken from a central tower heliostat field recently developed
near Seville, Spain. Real curves for irradiance and external temperature
are taken. The values of several variables in yearly
terms are predicted and the fuel consumption assuming natural
gas is estimated, as well as greenhouse emissions. Moreover, we
present an analysis of the losses coming from each plant subsystem.
This kind of analysis can contribute to improve the design
of these facilities in order to get better performance.
Papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.