Thermodynamic simulation of a hybrid thermo-solar externally fired gas turbine power plant fueled with biomass

A thermodynamic model for a hybrid thermo-solar externally fired gas turbine power plant fueled with biomass is presented. This technology represents a fully renewable way of obtaining electric power relying mainly in biomass with an extra advantage of decreasing its consumption at good radiative conditions. A concentrated solar power plant is implemented considering the Solugas project situated in Abengoa’s Solucar Platform near Seville. To predict its behavior two models were implemented and compared with experimental data. Typical daily evolution of the output power, biomass mass flow, overall efficiency and biomass conversion efficiency for a typical Uruguayan year is presented. In addition, global results are presented leading to a 1.5% biomass saving increasing the economic efficiency a 0.34% what denotes the solar field and thermal power of receiver seem to be undersized.