A METHOD FOR STORING THERMAL ENERGY, A THERMAL STORAGE SYSTEM AND A USE OF SUCH A THERMAL STORAGE SYSTEM

摘要

The invention relates to a thermal storage system (10) for industrial processes. The thermal storage system (10) comprising: a storage container (20) extending longitudinally between a first end (21) and a second end (22), wherein the first end (21) comprises at least one first fluid opening (23) and the second end (22) comprises at least one second fluid opening (24); a bed (35) of heat storage elements (30) arranged inside the storage container (20); and a heat transfer fluid (40), wherein the heat transfer fluid (40) is configured to transfer heat to the heat storage elements (30) in a charging mode and from the heat storage elements (30) in a discharging mode. The heat storage elements (30) comprise iron ore pellets. The invention also relates to a method and a use of the thermal storage system (10).