Patent ID: 11952921
Assignee: ENERGY DOME S.P.A.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 1:
2. A process for energy storage, comprising:
carrying out a closed cyclic thermodynamic transformation, first in one direction in a charge configuration/phase and then in an opposite direction in a discharge configuration/phase, between a casing for the storage of a working fluid different from atmospheric air, in a gaseous phase and in pressure equilibrium with the atmosphere, and a tank for the storage of said working fluid in a liquid or supercritical phase; wherein, in the charge phase, the process accumulates heat and potential energy in the form of pressure and in the discharge phase generates energy, wherein
in the charge phase, condensation of the working fluid is carried out by absorption of heat by a heat carrier, executed in a condenser/evaporator which works as a cooler/condenser, in order to store said working fluid in the liquid or supercritical phase;
in the discharge phase, evaporation of the working fluid, executed in said condenser/evaporator which works as a heater/evaporator, is performed starting from the liquid or supercritical phase and by transfer of heat from the heat carrier;
at least one parameter of the working fluid related to condensation and/or evaporation is actively adjusted in order to control at least one temperature of the heat carrier and to uncouple said at least one temperature of the heat carrier from an ambient temperature; and
said at least one parameter of the working fluid is selected from a group comprising:
a condenser inlet temperature;
a condensation start temperature;
a condensation end temperature;
a condenser outlet temperature;
an evaporator inlet temperature;
an evaporation start temperature;
an evaporation end temperature; and
an evaporator outlet temperature.