Energy system and method for regenerating thermal energy

摘要

The present invention relates to a method for regenerating heat energy with the aid of an energy system comprising n number of energy cells (121, . . . ,12n), wherein n is an integer, and n2. The energy cells (121, . . . ,12n) are connected in sequence. Each energy cell (121, . . . ,12n) comprises a phase change material (PCM1, . . . ,PCMn), wherein PCMT1PCMT2, . . . , PCMTn. The energy cells (121, . . . ,12n) performs the steps: to produce mechanical energy, which also causes rest heat energy (RH1, . . . ,RHn) stored in said energy cell (121, . . . ,12n) when the phase change material (PCM1, . . . ,PCMn) changes from solid phase to liquid phase; or to cool down when the phase change material (PCM1, . . . ,PCMn) changes from liquid phase to solid phase; to transfer said rest heat energy (RHx) from one energy cell (12x) which is cooling down as input energy to the next energy cell (12x+1), said method comprises the step: with the aid of a control means connected to said energy cells (121, . . . ,12n), to control said system alternately between a first phase, and a second phase, wherein, during said first phase, every two energy cells (121, 123, 125, . . . ) produces mechanical energy, and every two energy cells (122, 124, 126, . . . ) are cooling down, and vice versa during said second phase.