Thermal energy storage system

Abstract

A thermal energy storage system has an insulated housing defining an internal volume; a heat storing material contained in said internal volume; a first conduit arrangement configured to carry a first working fluid. The first conduit arrangement extending across said internal volume such that thermal energy is transferrable between the first working fluid and the heat storing material. A second conduit arrangement carries a second working fluid. The second conduit arrangement extends across the internal volume such that thermal energy is transferrable between the heat storing material and the second working fluid. The first working fluid and the second working fluid are fluidly separated from each other inside the housing. The first conduit arrangement and the second conduit arrangement are in contact with each other so that thermal energy is transferrable between the first working fluid and the second working fluid.

Dependencies are inferred from the claim text.