| 摘要 |
System for thermal energy storage from solar radiation comprising a concentrator of solar rays (2), a bed of solid particles (3) in relative continuous and casual movement functioning as storage means of the thermal energy and a device of heat exchange (4) between said solid particles (3) and a fluid (5) which carries out a thermo-dynamic cycle. In presence of the direct solar radiation (1), the concentrator of solar rays (2) directs the solar radiation in an area inside the bed of solid particles (3) increasing directly and uniformly the temperature of the storage means without requiring intermediate heat exchanges. The stored thermal energy can be transferred in a second moment to the fluid which carries out the thermo-dynamic cycle. The movement of the particles can be obtained by means of the fluidization or by means of mechanical or acoustic devices, while the concentration of the solar radiation can occur by means of a Fresnel lens. |
