AUTOMATIC PLANT AND PROCESS FOR PRODUCING ELECTRIC ENERGY FROM SOLAR IRRADIATION, FROM A FUEL-TYPE AUXILIARY PLANT AND FROM A SYSTEM FOR STORING THERMAL ENERGY

摘要

A process and an automatic plant (1) are described, for producing electric energy; the plant (10) comprises: a collector (8) of the solar thermal energy; a fuel-type auxiliary system (14); a common hydraulic circuit (4); a water tank (1) resistant to positive pressures, in communication with the hydraulic circuit (4) which connects the water tank (1) to the collector (8) and to the fuel-type auxiliary system (14); a steam turbine (5) in communication with the water tank (1); a pressure regulator (6) inserted in the communicating duct between tank (1) and turbine (5), the pressure regulator (6) being adapted to limit the pressure transferred to the turbine (6) to a preset value such as to produce electric energy to a constant value; and a thermostatic actuator adapted to activate the fuel-type auxiliary system (14) to the preset value and to de-activate it when the pressure in the tank (1) reaches the maximum value allowed by the pressure resistance of the tank (1).