Thermal energy storage system

Abstract

Disclosed herein is a thermal energy storage (TES) system. The TES includes two or more energy storage blocks comprising a phase-change material, the energy storage blocks being arranged ordinally with respect to a corresponding nominal phase change temperature of the energy storage blocks, and two or more fluid lines routed through the one or more energy storage blocks. A first fluid line and a second fluid line from the two or more fluid lines are configured to circulate a corresponding fluid in opposite directions with respect to the one or more energy storage blocks. The ordinal arrangement provides increased efficiency for heat storage and/or transfer, as a fluid circulated through the first fluid line incrementally/decrementally rejects heat to the energy storage blocks.

Dependencies are inferred from the claim text.