DEVICE AND METHOD FOR TEMPORARY STORAGE OF THERMAL ENERGY

摘要

Device (1) and method for temporary storage of thermal energy, comprising a housing (3) for accommodating a heat storage medium, particularly a phase change material, with at least one heat transfer medium line (7) which is arranged in the housing (3) and is connected to a feed device (5) for feeding a heat transfer medium in a heat-storage process, wherein the feed device (6) has a double pipeline (14) with an inner pipeline (15) which conveys the heat transfer medium in the vapour state and with an outer pipeline (16) which conveys the heat transfer medium in the liquid state, wherein the inner pipeline (15) has, in the region of a passage opening (18) between the outer pipeline (16) and the heat transfer medium line (7), an exit opening (20) so that a two-phase flow containing the heat transfer medium in the liquid state and in the vapour state can be fed into the heat transfer medium line (7).